diff options
| author | no author <devnull@mit.edu> | 2004-05-17 19:28:46 +0000 |
|---|---|---|
| committer | no author <devnull@mit.edu> | 2004-05-17 19:28:46 +0000 |
| commit | ef4d928fc937a354577c397ec8e723e920ff7351 (patch) | |
| tree | 8ed7a02bd110ed46492e88c6e67d1997bbde297f /src/lib/krb5/krb | |
| parent | 6670198c5e4945eaabfec95e24b0c47c7d97fc44 (diff) | |
| download | krb5-ef4d928fc937a354577c397ec8e723e920ff7351.zip krb5-ef4d928fc937a354577c397ec8e723e920ff7351.tar.gz krb5-ef4d928fc937a354577c397ec8e723e920ff7351.tar.bz2 | |
This commit was manufactured by cvs2svn to create tagkfw-2.6.2-beta2
'kfw-2_6_2-beta-2'.
git-svn-id: svn://anonsvn.mit.edu/krb5/tags/kfw-2_6_2-beta-2@16344 dc483132-0cff-0310-8789-dd5450dbe970
Diffstat (limited to 'src/lib/krb5/krb')
37 files changed, 2179 insertions, 771 deletions
diff --git a/src/lib/krb5/krb/.Sanitize b/src/lib/krb5/krb/.Sanitize index 7457c84..a2ab3a0 100644 --- a/src/lib/krb5/krb/.Sanitize +++ b/src/lib/krb5/krb/.Sanitize @@ -37,6 +37,7 @@ chk_trans.c cleanup.h configure configure.in +conv_creds.c conv_princ.c copy_addrs.c copy_athctr.c @@ -60,8 +61,6 @@ gen_seqnum.c gen_subkey.c get_creds.c get_in_tkt.c -in_tkt_ktb.c -in_tkt_pwd.c in_tkt_sky.c init_ctx.c int-proto.h @@ -106,6 +105,7 @@ t_ref_kerb.out t_ser.c tgtname.c unparse.c +v4lifetime.c valid_times.c walk_rtree.c diff --git a/src/lib/krb5/krb/ChangeLog b/src/lib/krb5/krb/ChangeLog index c936ca4..274245a 100644 --- a/src/lib/krb5/krb/ChangeLog +++ b/src/lib/krb5/krb/ChangeLog @@ -1,3 +1,328 @@ +2004-05-12 Jeffrey Altman <jaltman@mit.edu> + + * send_tgs.c: krb5_send_tgs() was broken in the case of a KRB_ERROR + message. The krb5_response message_type field was never set + resulting in stack garbage being used instead. This would + break code which used transitive cross-realm to obtain service + tickets. + +2004-04-15 Sam Hartman <hartmans@mit.edu> + + * gic_pwd.c (krb5_get_init_creds_password): Free the as reply in + the !use_master case (Thanks to Lijian Liu) + +2004-02-06 Sam Hartman <hartmans@avalanche-breakdown.mit.edu> + + * init_ctx.c (DEFAULT_ETYPE_LIST): Include aes128-cts + +2003-12-13 Ken Raeburn <raeburn@mit.edu> + + * mk_req_ext.c (krb5int_generate_and_save_subkey): New function, + split out from krb5_mk_req_extended. + (krb5_mk_req_extended): Call it. + * mk_rep.c (krb5_mk_rep): If KRB5_AUTH_CONTEXT_USE_SUBKEY flag is + set, call krb5int_generate_and_save_subkey to set up a new subkey + to send to the client. + + * serialize.c (krb5_ser_pack_int64, krb5_ser_unpack_int64): New + functions. + +2003-10-30 Tom Yu <tlyu@mit.edu> + + * gen_seqnum.c (krb5_generate_seq_number): Fix mask; was short by + 4 bits. + +2003-10-08 Tom Yu <tlyu@mit.edu> + + * rd_safe.c (krb5_rd_safe_basic): Save the encoded KRB-SAFE-BODY + to avoid trouble caused by re-encoding. Also, handle correctly + implemented RFC 1510 KRB-SAFE, i.e., checksummed over + KRB-SAFE-BODY only. + +2003-09-02 Tom Yu <tlyu@mit.edu> + + * conv_creds.c (krb524_convert_creds_plain): Apply patch from + Cesar Garcia to fix lifetime computation. + +2003-08-19 SamHartman <hartmans@avalanche-breakdown.mit.edu> + + * rd_cred.c (decrypt_credencdata): Don't double free credentials. + +2003-08-08 Tom Yu <tlyu@mit.edu> + + * gic_pwd.c (krb5_get_init_creds_password): If DNS SRV support is + turned off, the second call to get_init_creds() will fail with + KRB5_REALM_UNKNOWN under certain circumstances. If that happens, + return the error from the first call to get_init_creds(), which + will be more useful to the user. + +2003-07-22 Sam Hartman <hartmans@avalanche-breakdown.mit.edu> + + * preauth2.c (krb5_do_preauth): Use the etype_info2 decoder for decoding etype_info2 + (krb5_do_preauth): If an invalid encoding of etype_info or + etype_info2 is received, ignore it rather than failing the request + +2003-07-09 Alexandra Ellwood <lxs@mit.edu> + + * init_ctx.c: Export krb5_get_permitted_enctypes for Samba. + +2003-06-27 Tom Yu <tlyu@mit.edu> + + * gic_keytab.c (krb5_get_in_tkt_with_keytab): Pass (void*)keytab, + not &keytab, to get_init_creds. Thanks to Herb Lewis. + +2003-06-16 Sam Hartman <hartmans@mit.edu> + + * fwd_tgt.c (krb5_fwd_tgt_creds): Set use_conf_ktypes to true while getting the TGT key + +2003-06-13 Tom Yu <tlyu@mit.edu> + + * rd_rep.c (krb5_rd_rep): Free subkeys before replacing them, if + needed. This avoids a memory leak. + +2003-06-11 Tom Yu <tlyu@mit.edu> + + * srv_rcache.c (krb5_get_server_rcache): Octal escapes begin with + hyphen now, since backslash is a pathname separator on DOS. + +2003-06-06 Sam Hartman <hartmans@mit.edu> + + * get_in_tkt.c (krb5_get_init_creds): Mask out renewable_ok if the + request is for a renewable ticket with rtime greater than till + +2003-06-06 Ezra Peisach <epeisach@mit.edu> + + * mk_req_ext.c (krb5_generate_authenticator): Sequence numbers are + unsigned now. + +2003-05-30 Ken Raeburn <raeburn@mit.edu> + + * get_in_tkt.c (krb5_get_init_creds): Change hardcoded default + ticket lifetime from 10 hours to 24 hours. + + * init_ctx.c (DEFAULT_KDC_TIMESYNC): Define as 1 always. + (DEFAULT_CCACHE_TYPE): Define as 4 always. + +2003-05-30 Alexandra Ellwood <lxs@mit.edu> + + * get_in_tkt.c: (verify_as_reply) Only check the renewable lifetime + of tickets whose request options included KDC_OPT_RENEWABLE_OK + if those options did not also include KDC_OPT_RENEWABLE. Otherwise + verify_as_reply() will fail for all renewable tickets. + +2003-05-27 Ken Raeburn <raeburn@mit.edu> + + * conv_creds.c: Enable support on Windows always. + (krb5_524_convert_creds): Renamed from krb524_convert_creds_kdc. + (krb524_convert_creds_kdc, krb524_init_ets) [!_WIN32]: Backwards + compatibility functions. + +2003-05-27 Sam Hartman <hartmans@mit.edu> + + * gic_keytab.c (krb5_get_in_tkt_with_keytab): as below + + * gic_pwd.c (krb5_get_in_tkt_with_password): Store client and + server principals to avoid memory leak + +2003-05-24 Ken Raeburn <raeburn@mit.edu> + + * conv_creds.c: New file, moved from krb524/conv_creds.c and + krb524/encode.c. Rename exported encode routine, make other + encode and decode routines static. If KRB5_KRB4_COMPAT is not + defined, return an error. + * v4lifetime.c: New file, moved from lib/krb4/lifetime.c. Renamed + functions, changed interface to use krb5 types. + * Makefile.in (STLIBOBJS, OBJS, SRCS): Add them. + +2003-05-23 Sam Hartman <hartmans@mit.edu> + + * get_in_tkt.c (krb5_get_init_creds): Initialize options based on + context.kdc_default_options + +2003-05-22 Tom Yu <tlyu@mit.edu> + + * gen_seqnum.c (krb5_generate_seq_number): Fix think-o on sequence + number mask. + + * auth_con.c (krb5int_auth_con_chkseqnum): New function; implement + heuristic for broken Heimdal sequence number encoding. + (chk_heimdal_seqnum): Auxiliary function for above. + + * auth_con.h: Add flags for sequence number heuristic. + + * rd_priv.c: Use krb5int_auth_con_chkseqnum. + + * rd_safe.c: Use krb5int_auth_con_chkseqnum. + +2003-05-22 Sam Hartman <hartmans@mit.edu> + + * gic_pwd.c (krb5int_populate_gic_opt): returns void + +2003-05-21 Tom Yu <tlyu@mit.edu> + + * gic_pwd.c (krb5_get_in_tkt_with_password): Set pw0.length + correctly if a password is passed in. + +2003-05-20 Sam Hartman <hartmans@mit.edu> + + * Makefile.in (SRCS): Remove in_ktb.c + + * gic_keytab.c (krb5_get_in_tkt_with_keytab): Move from + in_tkt_keytab.c and rewrite to use krb5_get_init_creds + + * gic_pwd.c (krb5_get_in_tkt_with_password): Moved here from + in_tkt_pwd.c so it can share code with + krb5_get_init_creds_password. Rewritten to call + krb5_get_in_tkt_password + + * Makefile.in (SRCS): Delete in_tkt_pwd.c + +2003-05-18 Tom Yu <tlyu@mit.edu> + + * auth_con.h: Sequence numbers are now unsigned. + + * gen_seqnum.c (krb5_generate_seq_number): Constrain initial + sequence number space to facilitate backwards compatibility. + +2003-05-16 Ken Raeburn <raeburn@mit.edu> + + * chpw.c (krb5int_rd_chpw_rep): Allow new kpasswd error codes up + through _INITIAL_FLAG_NEEDED. + +2003-05-13 Sam Hartman <hartmans@mit.edu> + + * fwd_tgt.c (krb5_fwd_tgt_creds): Try with no specified enctype if + forwarding a specific enctype fails. l + + * get_in_tkt.c (krb5_get_init_creds): Free s2kparams + + * preauth2.c (krb5_do_preauth): Fix memory management + (pa_salt): Use copy_data_contents + + * copy_data.c (krb5int_copy_data_contents): New function + +2003-05-09 Sam Hartman <hartmans@mit.edu> + + * preauth2.c: Patch from Sun to reorganize code for handling + etype_info requests. More efficient and easier to implement etype_info2 + (krb5_do_preauth): Support enctype_info2 + +2003-05-08 Sam Hartman <hartmans@mit.edu> + + * preauth2.c: Add s2kparams to the declaration of a preauth + function, to every instance of a preauth function and to every + call to gak_fct + + * get_in_tkt.c (krb5_get_init_creds): Add s2kparams support + + * gic_keytab.c (krb5_get_as_key_keytab): Add s2kparams + + * gic_pwd.c (krb5_get_as_key_password): Add s2kparams support + +2003-05-09 Ken Raeburn <raeburn@mit.edu> + + * init_ctx.c (init_common): Copy tgs_ktypes array to + conf_tgs_ktypes. Clear use_conf_ktypes. + (krb5_free_context): Free conf_tgs_ktypes. + (krb5_get_tgs_ktypes): Use use_conf_ktypes to choose between + tgs_ktypes and conf_tgs_ktypes. + + * gc_frm_kdc.c (krb5_get_cred_from_kdc_opt): Set use_conf_ktypes + in context to 1 for all operations except the acquisition of the + desired service ticket. + +2003-05-09 Tom Yu <tlyu@mit.edu> + + * auth_con.c (krb5_auth_con_setsendsubkey) + (krb5_auth_con_setrecvsubkey, krb5_auth_con_getsendsubkey) + (krb5_auth_con_getrecvsubkey): New functions. Set or retrieve + subkeys from an auth_context. + (krb5_auth_con_getlocalsubkey, krb5_auth_con_getremotesubkey): + Reimplement in terms of the above. + + * auth_con.h, ser_actx.c: Rename {local,remote}_subkey -> + {send,recv}_subkey. + + * chpw.c (krb5int_rd_chpw_rep): Save send_subkey prior to rd_rep; + use saved send_subkey to smash recv_subkey obtained from rd_rep. + + * mk_req_ext.c (krb5_mk_req_extended): Rename + {local,remote}_subkey -> {send,recv}_subkey. Set both subkeys if + subkey generation is requested. + + * mk_cred.c, mk_priv.c, mk_safe.c: Rename {local,remote}_subkey -> + {send,recv}_subkey. Use either send_subkey or keyblock, in that + order. + + * rd_cred.c, rd_priv.c, rd_safe.c: Rename {local,remote}_subkey -> + {send,recv}_subkey. Use either recv_subkey or keyblock, in that + order. + + * rd_rep.c (krb5_rd_rep): Rename {local,remote}_subkey -> + {send,recv}_subkey. Set both subkeys if a subkey is present in + the AP-REP message. + + * rd_req_dec.c (krb5_rd_req_decoded_opt): Rename + {local,remote}_subkey -> {send,recv}_subkey. Set both subkeys if + a subkey is present in the AP-REQ message. + +2003-05-06 Sam Hartman <hartmans@mit.edu> + + * kfree.c (krb5_free_etype_info): Free s2kparams + +2003-04-27 Sam Hartman <hartmans@mit.edu> + + * chpw.c (krb5int_setpw_result_code_string): Make internal + +2003-04-25 Sam Hartman <hartmans@mit.edu> + + * chpw.c (krb5int_rd_setpw_rep): Fix error handling; allow + krberrors to be read correctly; fix memory alloctaion so that + allocated structures are freed. + +2003-04-24 Ezra Peisach <epeisach@mit.edu> + + * kfree.c (krb5_free_pwd_sequences): Correction to previous + fix. Free contents of krb5_data - not just the pointer. + +2003-04-23 Ezra Peisach <epeisach@mit.edu> + + * kfree.c (krb5_free_pwd_sequences): Actually free the entire + sequence of passwd_phase_elements and not just the first one. + +2003-04-16 Sam Hartman <hartmans@mit.edu> + + * chpw.c (krb5int_mk_setpw_req): Use encode_krb5_setpw_req. Fix + memory handling to free data that is allocated + +2003-04-15 Sam Hartman <hartmans@mit.edu> + + * chpw.c (krb5int_mk_setpw_req krb5int_rd_setpw_rep): New function + +2003-04-13 Ken Raeburn <raeburn@mit.edu> + + * init_ctx.c (DEFAULT_ETYPE_LIST): Add AES with 256 bits at the + front of the list. No 128-bit support by defaut. + +2003-04-01 Nalin Dahyabhai <nalin@redhat.com> + + * gc_frm_kdc.c (krb5_get_cred_from_kdc_opt): Check principal name + length before examining components. + + * parse.c (krb5_parse_name): Double-check principal name length + before filling in components. + + * srv_rcache.c (krb5_get_server_rcache): Check for null pointer + supplied in place of name. + + * unparse.c (krb5_unparse_name_ext): Don't move buffer pointer + backwards if nothing has been put into the buffer yet. + +2003-04-01 Sam Hartman <hartmans@mit.edu> + + * rd_req.c (krb5_rd_req): If AUTH_CONTEXT_DO_TIME is cleared, + don't set up a replay cache. + 2003-03-08 Ezra Peisach <epeisach@mit.edu> * t_kerb.c: Only include krb.h if krb4 support compiled in, diff --git a/src/lib/krb5/krb/Makefile.in b/src/lib/krb5/krb/Makefile.in index 18627b1..b703e56 100644 --- a/src/lib/krb5/krb/Makefile.in +++ b/src/lib/krb5/krb/Makefile.in @@ -23,6 +23,7 @@ STLIBOBJS= \ bld_princ.o \ chk_trans.o \ chpw.o \ + conv_creds.o \ conv_princ.o \ copy_addrs.o \ copy_auth.o \ @@ -51,8 +52,6 @@ STLIBOBJS= \ gic_keytab.o \ gic_opt.o \ gic_pwd.o \ - in_tkt_ktb.o \ - in_tkt_pwd.o \ in_tkt_sky.o \ init_ctx.o \ init_keyblock.o \ @@ -95,6 +94,7 @@ STLIBOBJS= \ str_conv.o \ tgtname.o \ unparse.o \ + v4lifetime.o \ valid_times.o \ vfy_increds.o \ vic_opt.o \ @@ -109,6 +109,7 @@ OBJS= $(OUTPRE)addr_comp.$(OBJEXT) \ $(OUTPRE)bld_princ.$(OBJEXT) \ $(OUTPRE)chk_trans.$(OBJEXT) \ $(OUTPRE)chpw.$(OBJEXT) \ + $(OUTPRE)conv_creds.$(OBJEXT) \ $(OUTPRE)conv_princ.$(OBJEXT) \ $(OUTPRE)copy_addrs.$(OBJEXT) \ $(OUTPRE)copy_auth.$(OBJEXT) \ @@ -137,8 +138,6 @@ OBJS= $(OUTPRE)addr_comp.$(OBJEXT) \ $(OUTPRE)gic_keytab.$(OBJEXT) \ $(OUTPRE)gic_opt.$(OBJEXT) \ $(OUTPRE)gic_pwd.$(OBJEXT) \ - $(OUTPRE)in_tkt_ktb.$(OBJEXT) \ - $(OUTPRE)in_tkt_pwd.$(OBJEXT) \ $(OUTPRE)in_tkt_sky.$(OBJEXT) \ $(OUTPRE)init_ctx.$(OBJEXT) \ $(OUTPRE)init_keyblock.$(OBJEXT) \ @@ -181,6 +180,7 @@ OBJS= $(OUTPRE)addr_comp.$(OBJEXT) \ $(OUTPRE)str_conv.$(OBJEXT) \ $(OUTPRE)tgtname.$(OBJEXT) \ $(OUTPRE)unparse.$(OBJEXT) \ + $(OUTPRE)v4lifetime.$(OBJEXT) \ $(OUTPRE)valid_times.$(OBJEXT) \ $(OUTPRE)vfy_increds.$(OBJEXT) \ $(OUTPRE)vic_opt.$(OBJEXT) \ @@ -196,6 +196,7 @@ SRCS= $(srcdir)/addr_comp.c \ $(srcdir)/brand.c \ $(srcdir)/chk_trans.c \ $(srcdir)/chpw.c \ + $(srcdir)/conv_creds.c \ $(srcdir)/conv_princ.c \ $(srcdir)/copy_addrs.c \ $(srcdir)/copy_auth.c \ @@ -224,8 +225,6 @@ SRCS= $(srcdir)/addr_comp.c \ $(srcdir)/gic_keytab.c \ $(srcdir)/gic_opt.c \ $(srcdir)/gic_pwd.c \ - $(srcdir)/in_tkt_ktb.c \ - $(srcdir)/in_tkt_pwd.c \ $(srcdir)/in_tkt_sky.c \ $(srcdir)/init_ctx.c \ $(srcdir)/init_keyblock.c \ @@ -268,6 +267,7 @@ SRCS= $(srcdir)/addr_comp.c \ $(srcdir)/str_conv.c \ $(srcdir)/tgtname.c \ $(srcdir)/unparse.c \ + $(srcdir)/v4lifetime.c \ $(srcdir)/valid_times.c \ $(srcdir)/vfy_increds.c \ $(srcdir)/vic_opt.c \ @@ -367,449 +367,482 @@ clean:: # addr_comp.so addr_comp.po $(OUTPRE)addr_comp.$(OBJEXT): addr_comp.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h addr_order.so addr_order.po $(OUTPRE)addr_order.$(OBJEXT): addr_order.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h addr_srch.so addr_srch.po $(OUTPRE)addr_srch.$(OBJEXT): addr_srch.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h appdefault.so appdefault.po $(OUTPRE)appdefault.$(OBJEXT): appdefault.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h auth_con.so auth_con.po $(OUTPRE)auth_con.$(OBJEXT): auth_con.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h auth_con.h + auth_con.h bld_pr_ext.so bld_pr_ext.po $(OUTPRE)bld_pr_ext.$(OBJEXT): bld_pr_ext.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h bld_princ.so bld_princ.po $(OUTPRE)bld_princ.$(OBJEXT): bld_princ.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h brand.so brand.po $(OUTPRE)brand.$(OBJEXT): brand.c chk_trans.so chk_trans.po $(OUTPRE)chk_trans.$(OBJEXT): chk_trans.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - 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$(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h t_kerb.so t_kerb.po $(OUTPRE)t_kerb.$(OBJEXT): t_kerb.c $(BUILDTOP)/include/krb5.h \ $(COM_ERR_DEPS) $(SRCTOP)/include/kerberosIV/krb.h \ $(SRCTOP)/include/kerberosIV/des.h $(KRB_ERR_H_DEP) \ $(BUILDTOP)/include/profile.h t_ser.so t_ser.po $(OUTPRE)t_ser.$(OBJEXT): t_ser.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h auth_con.h + auth_con.h t_deltat.so t_deltat.po $(OUTPRE)t_deltat.$(OBJEXT): t_deltat.c $(SRCTOP)/include/k5-int.h \ $(BUILDTOP)/include/krb5/osconf.h $(BUILDTOP)/include/krb5/autoconf.h \ - $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h \ - $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h \ - $(BUILDTOP)/include/profile.h + $(SRCTOP)/include/k5-platform.h $(BUILDTOP)/include/krb5.h \ + $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h $(SRCTOP)/include/port-sockets.h \ + $(SRCTOP)/include/socket-utils.h $(SRCTOP)/include/krb5/kdb.h t_expand.so t_expand.po $(OUTPRE)t_expand.$(OBJEXT): t_expand.c chk_trans.c \ $(SRCTOP)/include/k5-int.h $(BUILDTOP)/include/krb5/osconf.h \ - $(BUILDTOP)/include/krb5/autoconf.h $(BUILDTOP)/include/krb5.h \ - $(COM_ERR_DEPS) $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \ - $(SRCTOP)/include/krb5/kdb.h $(BUILDTOP)/include/profile.h + $(BUILDTOP)/include/krb5/autoconf.h $(SRCTOP)/include/k5-platform.h \ + $(BUILDTOP)/include/krb5.h $(COM_ERR_DEPS) $(BUILDTOP)/include/profile.h \ + $(SRCTOP)/include/port-sockets.h $(SRCTOP)/include/socket-utils.h \ + $(SRCTOP)/include/krb5/kdb.h diff --git a/src/lib/krb5/krb/auth_con.c b/src/lib/krb5/krb/auth_con.c index 09ccf98..cd3acf1 100644 --- a/src/lib/krb5/krb/auth_con.c +++ b/src/lib/krb5/krb/auth_con.c @@ -1,6 +1,8 @@ #include "k5-int.h" #include "auth_con.h" +static krb5_boolean chk_heimdal_seqnum(krb5_ui_4, krb5_ui_4); + static krb5_error_code actx_copy_addr(krb5_context context, const krb5_address *inad, krb5_address **outad) { @@ -59,10 +61,10 @@ krb5_auth_con_free(krb5_context context, krb5_auth_context auth_context) krb5_free_authenticator(context, auth_context->authentp); if (auth_context->keyblock) krb5_free_keyblock(context, auth_context->keyblock); - if (auth_context->local_subkey) - krb5_free_keyblock(context, auth_context->local_subkey); - if (auth_context->remote_subkey) - krb5_free_keyblock(context, auth_context->remote_subkey); + if (auth_context->send_subkey) + krb5_free_keyblock(context, auth_context->send_subkey); + if (auth_context->recv_subkey) + krb5_free_keyblock(context, auth_context->recv_subkey); if (auth_context->rcache) krb5_rc_close(context, auth_context->rcache); if (auth_context->permitted_etypes) @@ -176,17 +178,53 @@ krb5_auth_con_getkey(krb5_context context, krb5_auth_context auth_context, krb5_ krb5_error_code KRB5_CALLCONV krb5_auth_con_getlocalsubkey(krb5_context context, krb5_auth_context auth_context, krb5_keyblock **keyblock) { - if (auth_context->local_subkey) - return krb5_copy_keyblock(context,auth_context->local_subkey,keyblock); + return krb5_auth_con_getsendsubkey(context, auth_context, keyblock); +} + +krb5_error_code KRB5_CALLCONV +krb5_auth_con_getremotesubkey(krb5_context context, krb5_auth_context auth_context, krb5_keyblock **keyblock) +{ + return krb5_auth_con_getrecvsubkey(context, auth_context, keyblock); +} + +krb5_error_code KRB5_CALLCONV +krb5_auth_con_setsendsubkey(krb5_context ctx, krb5_auth_context ac, krb5_keyblock *keyblock) +{ + if (ac->send_subkey != NULL) + krb5_free_keyblock(ctx, ac->send_subkey); + ac->send_subkey = NULL; + if (keyblock !=NULL) + return krb5_copy_keyblock(ctx, keyblock, &ac->send_subkey); + else + return 0; +} + +krb5_error_code KRB5_CALLCONV +krb5_auth_con_setrecvsubkey(krb5_context ctx, krb5_auth_context ac, krb5_keyblock *keyblock) +{ + if (ac->recv_subkey != NULL) + krb5_free_keyblock(ctx, ac->recv_subkey); + ac->recv_subkey = NULL; + if (keyblock != NULL) + return krb5_copy_keyblock(ctx, keyblock, &ac->recv_subkey); + else + return 0; +} + +krb5_error_code KRB5_CALLCONV +krb5_auth_con_getsendsubkey(krb5_context ctx, krb5_auth_context ac, krb5_keyblock **keyblock) +{ + if (ac->send_subkey != NULL) + return krb5_copy_keyblock(ctx, ac->send_subkey, keyblock); *keyblock = NULL; return 0; } krb5_error_code KRB5_CALLCONV -krb5_auth_con_getremotesubkey(krb5_context context, krb5_auth_context auth_context, krb5_keyblock **keyblock) +krb5_auth_con_getrecvsubkey(krb5_context ctx, krb5_auth_context ac, krb5_keyblock **keyblock) { - if (auth_context->remote_subkey) - return krb5_copy_keyblock(context,auth_context->remote_subkey,keyblock); + if (ac->recv_subkey != NULL) + return krb5_copy_keyblock(ctx, ac->recv_subkey, keyblock); *keyblock = NULL; return 0; } @@ -359,3 +397,167 @@ krb5_auth_con_get_checksum_func( krb5_context context, *data = auth_context->checksum_func_data; return 0; } + +/* + * krb5int_auth_con_chkseqnum + * + * We use a somewhat complex heuristic for validating received + * sequence numbers. We must accommodate both our older + * implementation, which sends negative sequence numbers, and the + * broken Heimdal implementation (at least as of 0.5.2), which + * violates X.690 BER for integer encodings. The requirement of + * handling negative sequence numbers removes one of easier means of + * detecting a Heimdal implementation, so we resort to this mess + * here. + * + * X.690 BER (and consequently DER, which are the required encoding + * rules in RFC1510) encode all integer types as signed integers. + * This means that the MSB being set on the first octet of the + * contents of the encoding indicates a negative value. Heimdal does + * not prepend the required zero octet to unsigned integer encodings + * which would otherwise have the MSB of the first octet of their + * encodings set. + * + * Our ASN.1 library implements a special decoder for sequence + * numbers, accepting both negative and positive 32-bit numbers but + * mapping them both into the space of positive unsigned 32-bit + * numbers in the obvious bit-pattern-preserving way. This maintains + * compatibility with our older implementations. This also means that + * encodings emitted by Heimdal are ambiguous. + * + * Heimdal counter value received uint32 value + * + * 0x00000080 0xFFFFFF80 + * 0x000000FF 0xFFFFFFFF + * 0x00008000 0xFFFF8000 + * 0x0000FFFF 0xFFFFFFFF + * 0x00800000 0xFF800000 + * 0x00FFFFFF 0xFFFFFFFF + * 0xFF800000 0xFF800000 + * 0xFFFFFFFF 0xFFFFFFFF + * + * We use two auth_context flags, SANE_SEQ and HEIMDAL_SEQ, which are + * only set after we can unambiguously determine the sanity of the + * sending implementation. Once one of these flags is set, we accept + * only the sequence numbers appropriate to the remote implementation + * type. We can make the determination in two different ways. The + * first is to note the receipt of a "negative" sequence number when a + * "positive" one was expected. The second is to note the receipt of + * a sequence number that wraps through "zero" in a weird way. The + * latter corresponds to the receipt of an initial sequence number in + * the ambiguous range. + * + * There are 2^7 + 2^15 + 2^23 + 2^23 = 16810112 total ambiguous + * initial Heimdal counter values, but we receive them as one of 2^23 + * possible values. There is a ~1/256 chance of a Heimdal + * implementation sending an intial sequence number in the ambiguous + * range. + * + * We have to do special treatment when receiving sequence numbers + * between 0xFF800000..0xFFFFFFFF, or when wrapping through zero + * weirdly (due to ambiguous initial sequence number). If we are + * expecting a value corresponding to an ambiguous Heimdal counter + * value, and we receive an exact match, we can mark the remote end as + * sane. + */ +krb5_boolean +krb5int_auth_con_chkseqnum( + krb5_context ctx, + krb5_auth_context ac, + krb5_ui_4 in_seq) +{ + krb5_ui_4 exp_seq; + + exp_seq = ac->remote_seq_number; + + /* + * If sender is known to be sane, accept _only_ exact matches. + */ + if (ac->auth_context_flags & KRB5_AUTH_CONN_SANE_SEQ) + return in_seq == exp_seq; + + /* + * If sender is not known to be sane, first check the ambiguous + * range of received values, 0xFF800000..0xFFFFFFFF. + */ + if ((in_seq & 0xFF800000) == 0xFF800000) { + /* + * If expected sequence number is in the range + * 0xFF800000..0xFFFFFFFF, then we can't make any + * determinations about the sanity of the sending + * implementation. + */ + if ((exp_seq & 0xFF800000) == 0xFF800000 && in_seq == exp_seq) + return 1; + /* + * If sender is not known for certain to be a broken Heimdal + * implementation, check for exact match. + */ + if (!(ac->auth_context_flags & KRB5_AUTH_CONN_HEIMDAL_SEQ) + && in_seq == exp_seq) + return 1; + /* + * Now apply hairy algorithm for matching sequence numbers + * sent by broken Heimdal implementations. If it matches, we + * know for certain it's a broken Heimdal sender. + */ + if (chk_heimdal_seqnum(exp_seq, in_seq)) { + ac->auth_context_flags |= KRB5_AUTH_CONN_HEIMDAL_SEQ; + return 1; + } + return 0; + } + + /* + * Received value not in the ambiguous range? If the _expected_ + * value is in the range of ambiguous Hemidal counter values, and + * it matches the received value, sender is known to be sane. + */ + if (in_seq == exp_seq) { + if (( exp_seq & 0xFFFFFF80) == 0x00000080 + || (exp_seq & 0xFFFF8000) == 0x00008000 + || (exp_seq & 0xFF800000) == 0x00800000) + ac->auth_context_flags |= KRB5_AUTH_CONN_SANE_SEQ; + return 1; + } + + /* + * Magic wraparound for the case where the intial sequence number + * is in the ambiguous range. This means that the sender's + * counter is at a different count than ours, so we correct ours, + * and mark the sender as being a broken Heimdal implementation. + */ + if (exp_seq == 0 + && !(ac->auth_context_flags & KRB5_AUTH_CONN_HEIMDAL_SEQ)) { + switch (in_seq) { + case 0x100: + case 0x10000: + case 0x1000000: + ac->auth_context_flags |= KRB5_AUTH_CONN_HEIMDAL_SEQ; + exp_seq = in_seq; + return 1; + default: + return 0; + } + } + return 0; +} + +static krb5_boolean +chk_heimdal_seqnum(krb5_ui_4 exp_seq, krb5_ui_4 in_seq) +{ + if (( exp_seq & 0xFF800000) == 0x00800000 + && (in_seq & 0xFF800000) == 0xFF800000 + && (in_seq & 0x00FFFFFF) == exp_seq) + return 1; + else if (( exp_seq & 0xFFFF8000) == 0x00008000 + && (in_seq & 0xFFFF8000) == 0xFFFF8000 + && (in_seq & 0x0000FFFF) == exp_seq) + return 1; + else if (( exp_seq & 0xFFFFFF80) == 0x00000080 + && (in_seq & 0xFFFFFF80) == 0xFFFFFF80 + && (in_seq & 0x000000FF) == exp_seq) + return 1; + else + return 0; +} diff --git a/src/lib/krb5/krb/auth_con.h b/src/lib/krb5/krb/auth_con.h index d83d6b8..9543de3 100644 --- a/src/lib/krb5/krb/auth_con.h +++ b/src/lib/krb5/krb/auth_con.h @@ -9,12 +9,12 @@ struct _krb5_auth_context { krb5_address * local_addr; krb5_address * local_port; krb5_keyblock * keyblock; - krb5_keyblock * local_subkey; - krb5_keyblock * remote_subkey; + krb5_keyblock * send_subkey; + krb5_keyblock * recv_subkey; krb5_int32 auth_context_flags; - krb5_int32 remote_seq_number; - krb5_int32 local_seq_number; + krb5_ui_4 remote_seq_number; + krb5_ui_4 local_seq_number; krb5_authenticator *authentp; /* mk_req, rd_req, mk_rep, ...*/ krb5_cksumtype req_cksumtype; /* mk_safe, ... */ krb5_cksumtype safe_cksumtype; /* mk_safe, ... */ @@ -30,5 +30,7 @@ struct _krb5_auth_context { #define KRB5_AUTH_CONN_INITIALIZED 0x00010000 #define KRB5_AUTH_CONN_USED_W_MK_REQ 0x00020000 #define KRB5_AUTH_CONN_USED_W_RD_REQ 0x00040000 +#define KRB5_AUTH_CONN_SANE_SEQ 0x00080000 +#define KRB5_AUTH_CONN_HEIMDAL_SEQ 0x00100000 #endif diff --git a/src/lib/krb5/krb/chpw.c b/src/lib/krb5/krb/chpw.c index bb2cfe9..a455cc4 100644 --- a/src/lib/krb5/krb/chpw.c +++ b/src/lib/krb5/krb/chpw.c @@ -1,11 +1,15 @@ +/* +** set password functions added by Paul W. Nelson, Thursby Software Systems, Inc. +*/ #include <string.h> #include "k5-int.h" #include "krb5_err.h" #include "auth_con.h" -krb5_error_code KRB5_CALLCONV -krb5_mk_chpw_req(krb5_context context, krb5_auth_context auth_context, krb5_data *ap_req, char *passwd, krb5_data *packet) + +krb5_error_code +krb5int_mk_chpw_req(krb5_context context, krb5_auth_context auth_context, krb5_data *ap_req, char *passwd, krb5_data *packet) { krb5_error_code ret = 0; krb5_data clearpw; @@ -66,8 +70,8 @@ cleanup: return(ret); } -krb5_error_code KRB5_CALLCONV -krb5_rd_chpw_rep(krb5_context context, krb5_auth_context auth_context, krb5_data *packet, int *result_code, krb5_data *result_data) +krb5_error_code +krb5int_rd_chpw_rep(krb5_context context, krb5_auth_context auth_context, krb5_data *packet, int *result_code, krb5_data *result_data) { char *ptr; int plen, vno; @@ -116,8 +120,18 @@ krb5_rd_chpw_rep(krb5_context context, krb5_auth_context auth_context, krb5_data ap_rep.data = ptr; ptr += ap_rep.length; - if ((ret = krb5_rd_rep(context, auth_context, &ap_rep, &ap_rep_enc))) + /* + * Save send_subkey to later smash recv_subkey. + */ + ret = krb5_auth_con_getsendsubkey(context, auth_context, &tmp); + if (ret) + return ret; + + ret = krb5_rd_rep(context, auth_context, &ap_rep, &ap_rep_enc); + if (ret) { + krb5_free_keyblock(context, tmp); return(ret); + } krb5_free_ap_rep_enc_part(context, ap_rep_enc); @@ -126,18 +140,17 @@ krb5_rd_chpw_rep(krb5_context context, krb5_auth_context auth_context, krb5_data cipherresult.data = ptr; cipherresult.length = (packet->data + packet->length) - ptr; - /* XXX there's no api to do this right. The problem is that - if there's a remote subkey, it will be used. This is - not what the spec requires */ - - tmp = auth_context->remote_subkey; - auth_context->remote_subkey = NULL; + /* + * Smash recv_subkey to be send_subkey, per spec. + */ + ret = krb5_auth_con_setrecvsubkey(context, auth_context, tmp); + krb5_free_keyblock(context, tmp); + if (ret) + return ret; ret = krb5_rd_priv(context, auth_context, &cipherresult, &clearresult, &replay); - auth_context->remote_subkey = tmp; - if (ret) return(ret); } else { @@ -161,7 +174,7 @@ krb5_rd_chpw_rep(krb5_context context, krb5_auth_context auth_context, krb5_data *result_code = (*result_code<<8) | (*ptr++ & 0xff); if ((*result_code < KRB5_KPASSWD_SUCCESS) || - (*result_code > KRB5_KPASSWD_SOFTERROR)) { + (*result_code > KRB5_KPASSWD_INITIAL_FLAG_NEEDED)) { ret = KRB5KRB_AP_ERR_MODIFIED; goto cleanup; } @@ -221,3 +234,284 @@ krb5_chpw_result_code_string(krb5_context context, int result_code, char **code_ return(0); } + +krb5_error_code +krb5int_mk_setpw_req( + krb5_context context, + krb5_auth_context auth_context, + krb5_data *ap_req, + krb5_principal targprinc, + char *passwd, + krb5_data *packet ) +{ + krb5_error_code ret; + krb5_data cipherpw; + krb5_data *encoded_setpw; + + char *ptr; + int count = 2; + + cipherpw.data = NULL; + cipherpw.length = 0; + + if (ret = krb5_auth_con_setflags(context, auth_context, + KRB5_AUTH_CONTEXT_DO_SEQUENCE)) + return(ret); + + ret = encode_krb5_setpw_req(targprinc, passwd, &encoded_setpw); + if (ret) { + return ret; + } + + if ( (ret = krb5_mk_priv(context, auth_context, encoded_setpw, &cipherpw, NULL)) != 0) { + krb5_free_data( context, encoded_setpw); + return(ret); + } + krb5_free_data( context, encoded_setpw); + + + packet->length = 6 + ap_req->length + cipherpw.length; + packet->data = (char *) malloc(packet->length); + if (packet->data == NULL) { + ret = ENOMEM; + goto cleanup; + } + ptr = packet->data; +/* +** build the packet - +*/ +/* put in the length */ + *ptr++ = (packet->length>>8) & 0xff; + *ptr++ = packet->length & 0xff; +/* put in the version */ + *ptr++ = (char)0xff; + *ptr++ = (char)0x80; +/* the ap_req length is big endian */ + *ptr++ = (ap_req->length>>8) & 0xff; + *ptr++ = ap_req->length & 0xff; +/* put in the request data */ + memcpy(ptr, ap_req->data, ap_req->length); + ptr += ap_req->length; +/* +** put in the "private" password data - +*/ + memcpy(ptr, cipherpw.data, cipherpw.length); + ret = 0; + cleanup: + if (cipherpw.data) + krb5_free_data_contents(context, &cipherpw); + if ((ret != 0) && packet->data) { + free( packet->data); + packet->data = NULL; + } + return ret; +} + +krb5_error_code +krb5int_rd_setpw_rep( krb5_context context, krb5_auth_context auth_context, krb5_data *packet, + int *result_code, krb5_data *result_data ) +{ + char *ptr; + unsigned int message_length, version_number; + krb5_data ap_rep; + krb5_ap_rep_enc_part *ap_rep_enc; + krb5_error_code ret; + krb5_data cipherresult; + krb5_data clearresult; + krb5_replay_data replay; + krb5_keyblock *tmpkey; +/* +** validate the packet length - +*/ + if (packet->length < 4) + return(KRB5KRB_AP_ERR_MODIFIED); + + ptr = packet->data; + +/* +** see if it is an error +*/ + if (krb5_is_krb_error(packet)) { + krb5_error *krberror; + if (ret = krb5_rd_error(context, packet, &krberror)) + return(ret); + if (krberror->e_data.data == NULL) { + ret = ERROR_TABLE_BASE_krb5 + krberror->error; + krb5_free_error(context, krberror); + return (ret); + } + clearresult = krberror->e_data; + krberror->e_data.data = NULL; /*So we can free it later*/ + krberror->e_data.length = 0; + krb5_free_error(context, krberror); + + } else { /* Not an error*/ + +/* +** validate the message length - +** length is big endian +*/ + message_length = (((ptr[0] << 8)&0xff) | (ptr[1]&0xff)); + ptr += 2; +/* +** make sure the message length and packet length agree - +*/ + if (message_length != packet->length) + return(KRB5KRB_AP_ERR_MODIFIED); +/* +** get the version number - +*/ + version_number = (((ptr[0] << 8)&0xff) | (ptr[1]&0xff)); + ptr += 2; +/* +** make sure we support the version returned - +*/ +/* +** set password version is 0xff80, change password version is 1 +*/ + if (version_number != 0xff80 && version_number != 1) + return(KRB5KDC_ERR_BAD_PVNO); +/* +** now fill in ap_rep with the reply - +*/ +/* +** get the reply length - +*/ + ap_rep.length = (((ptr[0] << 8)&0xff) | (ptr[1]&0xff)); + ptr += 2; +/* +** validate ap_rep length agrees with the packet length - +*/ + if (ptr + ap_rep.length >= packet->data + packet->length) + return(KRB5KRB_AP_ERR_MODIFIED); +/* +** if data was returned, set the ap_rep ptr - +*/ + if( ap_rep.length ) { + ap_rep.data = ptr; + ptr += ap_rep.length; + + /* + * Save send_subkey to later smash recv_subkey. + */ + ret = krb5_auth_con_getsendsubkey(context, auth_context, &tmpkey); + if (ret) + return ret; + + ret = krb5_rd_rep(context, auth_context, &ap_rep, &ap_rep_enc); + if (ret) { + krb5_free_keyblock(context, tmpkey); + return(ret); + } + + krb5_free_ap_rep_enc_part(context, ap_rep_enc); +/* +** now decrypt the result - +*/ + cipherresult.data = ptr; + cipherresult.length = (packet->data + packet->length) - ptr; + + /* + * Smash recv_subkey to be send_subkey, per spec. + */ + ret = krb5_auth_con_setrecvsubkey(context, auth_context, tmpkey); + krb5_free_keyblock(context, tmpkey); + if (ret) + return ret; + + ret = krb5_rd_priv(context, auth_context, &cipherresult, &clearresult, + NULL); + if (ret) + return(ret); + } /*We got an ap_rep*/ + else + return (KRB5KRB_AP_ERR_MODIFIED); + } /*Response instead of error*/ + +/* +** validate the cleartext length +*/ + if (clearresult.length < 2) { + ret = KRB5KRB_AP_ERR_MODIFIED; + goto cleanup; + } +/* +** now decode the result - +*/ + ptr = clearresult.data; + + *result_code = (((ptr[0] << 8)&0xff) | (ptr[1]&0xff)); + ptr += 2; + +/* +** result code 5 is access denied +*/ + if ((*result_code < KRB5_KPASSWD_SUCCESS) || (*result_code > 5)) + { + ret = KRB5KRB_AP_ERR_MODIFIED; + goto cleanup; + } +/* +** all success replies should be authenticated/encrypted +*/ + if( (ap_rep.length == 0) && (*result_code == KRB5_KPASSWD_SUCCESS) ) + { + ret = KRB5KRB_AP_ERR_MODIFIED; + goto cleanup; + } + + if (result_data) { + result_data->length = (clearresult.data + clearresult.length) - ptr; + + if (result_data->length) + { + result_data->data = (char *) malloc(result_data->length); + if (result_data->data) + memcpy(result_data->data, ptr, result_data->length); + } + else + result_data->data = NULL; + } + ret = 0; + + cleanup: + krb5_free_data_contents(context, &clearresult); + return(ret); +} + +krb5_error_code +krb5int_setpw_result_code_string( krb5_context context, int result_code, const char **code_string ) +{ + switch (result_code) + { + case KRB5_KPASSWD_MALFORMED: + *code_string = "Malformed request error"; + break; + case KRB5_KPASSWD_HARDERROR: + *code_string = "Server error"; + break; + case KRB5_KPASSWD_AUTHERROR: + *code_string = "Authentication error"; + break; + case KRB5_KPASSWD_SOFTERROR: + *code_string = "Password change rejected"; + break; + case 5: /* access denied */ + *code_string = "Access denied"; + break; + case 6: /* bad version */ + *code_string = "Wrong protocol version"; + break; + case 7: /* initial flag is needed */ + *code_string = "Initial password required"; + break; + case 0: + *code_string = "Success"; + default: + *code_string = "Password change failed"; + break; + } + + return(0); +} + diff --git a/src/lib/krb5/krb/conv_creds.c b/src/lib/krb5/krb/conv_creds.c new file mode 100644 index 0000000..3a4e66d --- /dev/null +++ b/src/lib/krb5/krb/conv_creds.c @@ -0,0 +1,277 @@ +/* + * Copyright 1994 by OpenVision Technologies, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appears in all copies and + * that both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of OpenVision not be used + * in advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. OpenVision makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF + * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR + * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "k5-int.h" +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#include "port-sockets.h" +#include "socket-utils.h" + +#if defined(KRB5_KRB4_COMPAT) || defined(_WIN32) /* yuck */ +#include "kerberosIV/krb.h" + +#ifdef USE_CCAPI +#include <CredentialsCache.h> +#endif + +#define krb524_debug krb5int_krb524_debug +int krb524_debug = 0; + +static krb5_error_code krb524_convert_creds_plain +(krb5_context context, krb5_creds *v5creds, + CREDENTIALS *v4creds); + +static int decode_v4tkt + (struct ktext *v4tkt, char *buf, unsigned int *encoded_len); + +krb5_error_code KRB5_CALLCONV +krb5_524_convert_creds(krb5_context context, krb5_creds *v5creds, + CREDENTIALS *v4creds) +{ + krb5_error_code ret; + krb5_data reply; + char *p; + struct sockaddr_storage ss; + socklen_t slen = sizeof(ss); + + ret = krb524_convert_creds_plain(context, v5creds, v4creds); + if (ret) + return ret; + + reply.data = NULL; + ret = krb5int_524_sendto_kdc(context, &v5creds->ticket, + &v5creds->server->realm, &reply, + ss2sa(&ss), &slen); + if (ret) + return ret; + +#if TARGET_OS_MAC +#ifdef USE_CCAPI + v4creds->stk_type = cc_v4_stk_des; +#endif + if (slen == sizeof(struct sockaddr_in) + && ss2sa(&ss)->sa_family == AF_INET) { + v4creds->address = ss2sin(&ss)->sin_addr.s_addr; + } + /* Otherwise, leave it set to all-zero. */ +#endif + + p = reply.data; + ret = ntohl(*((krb5_error_code *) p)); + p += sizeof(krb5_int32); + reply.length -= sizeof(krb5_int32); + if (ret) + goto fail; + + v4creds->kvno = ntohl(*((krb5_error_code *) p)); + p += sizeof(krb5_int32); + reply.length -= sizeof(krb5_int32); + ret = decode_v4tkt(&v4creds->ticket_st, p, &reply.length); + +fail: + if (reply.data) + free(reply.data); + reply.data = NULL; + return ret; +} + +static krb5_error_code +krb524_convert_creds_plain(context, v5creds, v4creds) + krb5_context context; + krb5_creds *v5creds; + CREDENTIALS *v4creds; +{ + int ret; + krb5_timestamp endtime; + char dummy[REALM_SZ]; + memset((char *) v4creds, 0, sizeof(CREDENTIALS)); + + if ((ret = krb5_524_conv_principal(context, v5creds->client, + v4creds->pname, v4creds->pinst, + dummy))) + return ret; + if ((ret = krb5_524_conv_principal(context, v5creds->server, + v4creds->service, v4creds->instance, + v4creds->realm))) + return ret; + + /* Check enctype too */ + if (v5creds->keyblock.length != sizeof(C_Block)) { + if (krb524_debug) + fprintf(stderr, "v5 session keyblock length %d != C_Block size %d\n", + v5creds->keyblock.length, + (int) sizeof(C_Block)); + return KRB524_BADKEY; + } else + memcpy(v4creds->session, (char *) v5creds->keyblock.contents, + sizeof(C_Block)); + + /* V4 has no concept of authtime or renew_till, so ignore them */ + v4creds->issue_date = v5creds->times.starttime; + v4creds->lifetime = krb5int_krb_time_to_life(v5creds->times.starttime, + v5creds->times.endtime); + endtime = krb5int_krb_life_to_time(v4creds->issue_date, + v4creds->lifetime); + /* + * Adjust start time backwards to deal with rounding up in + * krb_time_to_life(), to match code on server side. + */ + if (endtime > v5creds->times.endtime) + v4creds->issue_date -= endtime - v5creds->times.endtime; + + return 0; +} + +/* this used to be krb524/encode.c, under same copyright as above */ +/* + * I'm sure that this is reinventing the wheel, but I don't know where + * the wheel is hidden. + */ + +int encode_v4tkt (KTEXT_ST *, char *, unsigned int *); +static int encode_bytes (char **, int *, char *, unsigned int), + encode_int32 (char **, int *, krb5_int32 *); + +static int decode_bytes (char **, int *, char *, unsigned int), + decode_int32 (char **, int *, krb5_int32 *); + +static int encode_bytes(out, outlen, in, len) + char **out; + int *outlen; + char *in; + unsigned int len; +{ + if (len > *outlen) + return KRB524_ENCFULL; + memcpy(*out, in, len); + *out += len; + *outlen -= len; + return 0; +} + +static int encode_int32(out, outlen, v) + char **out; + int *outlen; + krb5_int32 *v; +{ + krb5_int32 nv; /* Must be 4 bytes */ + + nv = htonl(*v); + return encode_bytes(out, outlen, (char *) &nv, sizeof(nv)); +} + +int krb5int_encode_v4tkt(v4tkt, buf, encoded_len) + KTEXT_ST *v4tkt; + char *buf; + unsigned int *encoded_len; +{ + int buflen, ret; + + buflen = *encoded_len; + + if ((ret = encode_int32(&buf, &buflen, &v4tkt->length))) + return ret; + if ((ret = encode_bytes(&buf, &buflen, (char *)v4tkt->dat, MAX_KTXT_LEN))) + return ret; + if ((ret = encode_int32(&buf, &buflen, (krb5_int32 *) &v4tkt->mbz))) + return ret; + + *encoded_len -= buflen; + return 0; +} + +/* decode functions */ + +static int decode_bytes(out, outlen, in, len) + char **out; + int *outlen; + char *in; + unsigned int len; +{ + if (len > *outlen) + return KRB524_DECEMPTY; + memcpy(in, *out, len); + *out += len; + *outlen -= len; + return 0; +} + +static int decode_int32(out, outlen, v) + char **out; + int *outlen; + krb5_int32 *v; +{ + int ret; + krb5_int32 nv; /* Must be four bytes */ + + if ((ret = decode_bytes(out, outlen, (char *) &nv, sizeof(nv)))) + return ret; + *v = ntohl(nv); + return 0; +} + +static int decode_v4tkt(v4tkt, buf, encoded_len) + KTEXT_ST *v4tkt; + char *buf; + unsigned int *encoded_len; +{ + int buflen, ret; + + buflen = *encoded_len; + if ((ret = decode_int32(&buf, &buflen, &v4tkt->length))) + return ret; + if ((ret = decode_bytes(&buf, &buflen, (char *)v4tkt->dat, MAX_KTXT_LEN))) + return ret; + if ((ret = decode_int32(&buf, &buflen, (krb5_int32 *) &v4tkt->mbz))) + return ret; + *encoded_len -= buflen; + return 0; +} + +#else /* no krb4 compat */ + +krb5_error_code KRB5_CALLCONV +krb5_524_convert_creds(krb5_context context, krb5_creds *v5creds, + struct credentials *v4creds) +{ + return KRB524_KRB4_DISABLED; +} + +#endif + +/* These may be needed for object-level backwards compatibility on Mac + OS and UNIX, but Windows should be okay. */ +#ifndef _WIN32 +#undef krb524_convert_creds_kdc +krb5_error_code KRB5_CALLCONV +krb524_convert_creds_kdc(krb5_context context, krb5_creds *v5creds, + struct credentials *v4creds) +{ + return krb5_524_convert_creds(context, v5creds, v4creds); +} + +#undef krb524_init_ets +void KRB5_CALLCONV krb524_init_ets () +{ +} +#endif diff --git a/src/lib/krb5/krb/copy_data.c b/src/lib/krb5/krb/copy_data.c index 2899c5a..1be2a2d 100644 --- a/src/lib/krb5/krb/copy_data.c +++ b/src/lib/krb5/krb/copy_data.c @@ -58,3 +58,25 @@ krb5_copy_data(krb5_context context, const krb5_data *indata, krb5_data **outdat *outdata = tempdata; return 0; } + +krb5_error_code +krb5int_copy_data_contents(krb5_context context, const krb5_data *indata, krb5_data *outdata) +{ + if (!indata) { + return EINVAL; + } + + + outdata->length = indata->length; + if (outdata->length) { + if (!(outdata->data = malloc(outdata->length))) { + krb5_xfree(outdata); + return ENOMEM; + } + memcpy((char *)outdata->data, (char *)indata->data, outdata->length); + } else + outdata->data = 0; + outdata->magic = KV5M_DATA; + + return 0; +} diff --git a/src/lib/krb5/krb/fwd_tgt.c b/src/lib/krb5/krb/fwd_tgt.c index aa42f8c..4e2c8f0 100644 --- a/src/lib/krb5/krb/fwd_tgt.c +++ b/src/lib/krb5/krb/fwd_tgt.c @@ -56,6 +56,7 @@ krb5_fwd_tgt_creds(krb5_context context, krb5_auth_context auth_context, char *r int free_rhost = 0; krb5_enctype enctype = 0; krb5_keyblock *session_key; + krb5_boolean old_use_conf_ktypes = context->use_conf_ktypes; memset((char *)&creds, 0, sizeof(creds)); memset((char *)&tgt, 0, sizeof(creds)); @@ -109,8 +110,10 @@ krb5_fwd_tgt_creds(krb5_context context, krb5_auth_context auth_context, char *r goto errout; /* fetch tgt directly from cache */ + context->use_conf_ktypes = 1; retval = krb5_cc_retrieve_cred (context, cc, KRB5_TC_SUPPORTED_KTYPES, &creds, &tgt); + context->use_conf_ktypes = old_use_conf_ktypes; if (retval) goto errout; @@ -161,9 +164,15 @@ retval = KRB5_FWD_BAD_PRINCIPAL; kdcoptions &= ~(KDC_OPT_FORWARDABLE); if ((retval = krb5_get_cred_via_tkt(context, &tgt, kdcoptions, - addrs, &creds, &pcreds))) - goto errout; - + addrs, &creds, &pcreds))) { + if (enctype) { + creds.keyblock.enctype = 0; + if ((retval = krb5_get_cred_via_tkt(context, &tgt, kdcoptions, + addrs, &creds, &pcreds))) + goto errout; + } + else goto errout; + } retval = krb5_mk_1cred(context, auth_context, pcreds, &scratch, &replaydata); krb5_free_creds(context, pcreds); diff --git a/src/lib/krb5/krb/gc_frm_kdc.c b/src/lib/krb5/krb/gc_frm_kdc.c index fdf00e6..8ca62cc 100644 --- a/src/lib/krb5/krb/gc_frm_kdc.c +++ b/src/lib/krb5/krb/gc_frm_kdc.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1994 by the Massachusetts Institute of Technology. + * Copyright (c) 1994,2003 by the Massachusetts Institute of Technology. * Copyright (c) 1994 CyberSAFE Corporation * Copyright (c) 1993 Open Computing Security Group * Copyright (c) 1990,1991 by the Massachusetts Institute of Technology. @@ -76,6 +76,7 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds krb5_principal *top_server = NULL; krb5_principal *next_server = NULL; unsigned int nservers = 0; + krb5_boolean old_use_conf_ktypes = context->use_conf_ktypes; /* in case we never get a TGT, zero the return */ @@ -114,6 +115,7 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds goto cleanup; } + context->use_conf_ktypes = 1; if ((retval = krb5_cc_retrieve_cred(context, ccache, KRB5_TC_MATCH_SRV_NAMEONLY | KRB5_TC_SUPPORTED_KTYPES, &tgtq, &tgt))) { @@ -231,21 +233,17 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds krb5_free_cred_contents(context, &tgtq); memset(&tgtq, 0, sizeof(tgtq)); -#ifdef HAVE_C_STRUCTURE_ASSIGNMENT tgtq.times = tgt.times; -#else - memcpy(&tgtq.times, &tgt.times, sizeof(krb5_ticket_times)); -#endif - if ((retval = krb5_copy_principal(context, tgt.client, &tgtq.client))) goto cleanup; if ((retval = krb5_copy_principal(context, int_server, &tgtq.server))) goto cleanup; tgtq.is_skey = FALSE; tgtq.ticket_flags = tgt.ticket_flags; - if ((retval = krb5_get_cred_via_tkt(context, &tgt, - FLAGS2OPTS(tgtq.ticket_flags), - tgt.addresses, &tgtq, &tgtr))) { + retval = krb5_get_cred_via_tkt(context, &tgt, + FLAGS2OPTS(tgtq.ticket_flags), + tgt.addresses, &tgtq, &tgtr); + if (retval) { /* * couldn't get one so now loop backwards through the realms @@ -301,12 +299,12 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds goto cleanup; tgtq.is_skey = FALSE; tgtq.ticket_flags = tgt.ticket_flags; - if ((retval = krb5_get_cred_via_tkt(context, &tgt, - FLAGS2OPTS(tgtq.ticket_flags), - tgt.addresses, - &tgtq, &tgtr))) { + retval = krb5_get_cred_via_tkt(context, &tgt, + FLAGS2OPTS(tgtq.ticket_flags), + tgt.addresses, + &tgtq, &tgtr); + if (retval) continue; - } /* save tgt in return array */ if ((retval = krb5_copy_creds(context, tgtr, @@ -341,7 +339,9 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds for (next_server = top_server; *next_server; next_server++) { krb5_data *realm_1 = krb5_princ_component(context, next_server[0], 1); krb5_data *realm_2 = krb5_princ_component(context, tgtr->server, 1); - if (realm_1->length == realm_2->length && + if (realm_1 != NULL && + realm_2 != NULL && + realm_1->length == realm_2->length && !memcmp(realm_1->data, realm_2->data, realm_1->length)) { break; } @@ -374,10 +374,12 @@ krb5_get_cred_from_kdc_opt(krb5_context context, krb5_ccache ccache, krb5_creds goto cleanup; } - retval = krb5_get_cred_via_tkt(context, &tgt, FLAGS2OPTS(tgt.ticket_flags) | - kdcopt | - (in_cred->second_ticket.length ? - KDC_OPT_ENC_TKT_IN_SKEY : 0), + context->use_conf_ktypes = old_use_conf_ktypes; + retval = krb5_get_cred_via_tkt(context, &tgt, + FLAGS2OPTS(tgt.ticket_flags) | + kdcopt | + (in_cred->second_ticket.length ? + KDC_OPT_ENC_TKT_IN_SKEY : 0), tgt.addresses, in_cred, out_cred); /* cleanup and return */ @@ -393,6 +395,7 @@ cleanup: if (ret_tgts) free(ret_tgts); krb5_free_cred_contents(context, &tgt); } + context->use_conf_ktypes = old_use_conf_ktypes; return(retval); } diff --git a/src/lib/krb5/krb/gen_seqnum.c b/src/lib/krb5/krb/gen_seqnum.c index 196a437..3737640 100644 --- a/src/lib/krb5/krb/gen_seqnum.c +++ b/src/lib/krb5/krb/gen_seqnum.c @@ -36,7 +36,7 @@ #endif krb5_error_code -krb5_generate_seq_number(krb5_context context, const krb5_keyblock *key, krb5_int32 *seqno) +krb5_generate_seq_number(krb5_context context, const krb5_keyblock *key, krb5_ui_4 *seqno) { krb5_data seed; krb5_error_code retval; @@ -48,5 +48,20 @@ krb5_generate_seq_number(krb5_context context, const krb5_keyblock *key, krb5_in seed.length = sizeof(*seqno); seed.data = (char *) seqno; - return(krb5_c_random_make_octets(context, &seed)); + retval = krb5_c_random_make_octets(context, &seed); + if (retval) + return retval; + /* + * Work around implementation incompatibilities by not generating + * initial sequence numbers greater than 2^30. Previous MIT + * implementations use signed sequence numbers, so initial + * sequence numbers 2^31 to 2^32-1 inclusive will be rejected. + * Letting the maximum initial sequence number be 2^30-1 allows + * for about 2^30 messages to be sent before wrapping into + * "negative" numbers. + */ + *seqno &= 0x3fffffff; + if (*seqno == 0) + *seqno = 1; + return 0; } diff --git a/src/lib/krb5/krb/get_in_tkt.c b/src/lib/krb5/krb/get_in_tkt.c index dc06c53..df5ebaf 100644 --- a/src/lib/krb5/krb/get_in_tkt.c +++ b/src/lib/krb5/krb/get_in_tkt.c @@ -1,7 +1,7 @@ /* * lib/krb5/krb/get_in_tkt.c * - * Copyright 1990,1991 by the Massachusetts Institute of Technology. + * Copyright 1990,1991, 2003 by the Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may @@ -262,6 +262,7 @@ verify_as_reply(krb5_context context, (request->rtime != 0) && (as_reply->enc_part2->times.renew_till > request->rtime)) || ((request->kdc_options & KDC_OPT_RENEWABLE_OK) && + !(request->kdc_options & KDC_OPT_RENEWABLE) && (as_reply->enc_part2->flags & KDC_OPT_RENEWABLE) && (request->till != 0) && (as_reply->enc_part2->times.renew_till > request->till)) @@ -409,6 +410,15 @@ make_preauth_list(krb5_context context, } #define MAX_IN_TKT_LOOPS 16 +static krb5_enctype get_in_tkt_enctypes[] = { + ENCTYPE_DES3_CBC_SHA1, + ENCTYPE_ARCFOUR_HMAC, + ENCTYPE_DES_CBC_MD5, + ENCTYPE_DES_CBC_MD4, + ENCTYPE_DES_CBC_CRC, + 0 +}; + krb5_error_code KRB5_CALLCONV krb5_get_in_tkt(krb5_context context, @@ -460,8 +470,13 @@ krb5_get_in_tkt(krb5_context context, request.from = creds->times.starttime; request.till = creds->times.endtime; request.rtime = creds->times.renew_till; - if ((retval = krb5_get_default_in_tkt_ktypes(context, &request.ktype))) + + request.ktype = malloc (sizeof(get_in_tkt_enctypes)); + if (request.ktype == NULL) { + retval = ENOMEM; goto cleanup; + } + memcpy(request.ktype, get_in_tkt_enctypes, sizeof(get_in_tkt_enctypes)); for (request.nktypes = 0;request.ktype[request.nktypes];request.nktypes++); if (ktypes) { int i, req, next = 0; @@ -734,6 +749,7 @@ krb5_get_init_creds(krb5_context context, krb5_deltat renew_life; int loopcount; krb5_data salt; + krb5_data s2kparams; krb5_keyblock as_key; krb5_error *err_reply; krb5_kdc_rep *local_as_reply; @@ -742,6 +758,8 @@ krb5_get_init_creds(krb5_context context, /* initialize everything which will be freed at cleanup */ + s2kparams.data = NULL; + s2kparams.length = 0; request.server = NULL; request.ktype = NULL; request.addresses = NULL; @@ -761,7 +779,7 @@ krb5_get_init_creds(krb5_context context, /* request.padata is filled in later */ - request.kdc_options = 0; + request.kdc_options = context->kdc_default_options; /* forwardable */ @@ -854,11 +872,13 @@ krb5_get_init_creds(krb5_context context, if (options && (options->flags & KRB5_GET_INIT_CREDS_OPT_TKT_LIFE)) request.till += options->tkt_life; else - request.till += 10*60*60; /* this used to be hardcoded in kinit.c */ + request.till += 24*60*60; /* this used to be hardcoded in kinit.c */ if (renew_life > 0) { request.rtime = request.from; request.rtime += renew_life; + if (request.rtime >= request.till) + request.kdc_options &= ~(KDC_OPT_RENEWABLE_OK); } else { request.rtime = 0; } @@ -927,7 +947,7 @@ krb5_get_init_creds(krb5_context context, if ((ret = krb5_do_preauth(context, &request, padata, &request.padata, - &salt, &etype, &as_key, prompter, + &salt, &s2kparams, &etype, &as_key, prompter, prompter_data, gak_fct, gak_data))) goto cleanup; @@ -973,7 +993,7 @@ krb5_get_init_creds(krb5_context context, if ((ret = krb5_do_preauth(context, &request, local_as_reply->padata, &padata, - &salt, &etype, &as_key, prompter, + &salt, &s2kparams, &etype, &as_key, prompter, prompter_data, gak_fct, gak_data))) goto cleanup; @@ -1005,7 +1025,7 @@ krb5_get_init_creds(krb5_context context, if ((ret = ((*gak_fct)(context, request.client, local_as_reply->enc_part.enctype, - prompter, prompter_data, &salt, + prompter, prompter_data, &salt, &s2kparams, &as_key, gak_data)))) goto cleanup; @@ -1050,6 +1070,7 @@ cleanup: if (salt.data && (!(options && (options->flags & KRB5_GET_INIT_CREDS_OPT_SALT)))) krb5_xfree(salt.data); + krb5_free_data_contents(context, &s2kparams); if (as_reply) *as_reply = local_as_reply; else if (local_as_reply) diff --git a/src/lib/krb5/krb/gic_keytab.c b/src/lib/krb5/krb/gic_keytab.c index a7cb773..38a88ee 100644 --- a/src/lib/krb5/krb/gic_keytab.c +++ b/src/lib/krb5/krb/gic_keytab.c @@ -1,3 +1,29 @@ +/* + * lib/krb5/krb/gic_keytab.c + * + * Copyright (C) 2002, 2003 by the Massachusetts Institute of Technology. + * All rights reserved. + * + * Export of this software from the United States of America may + * require a specific license from the United States Government. + * It is the responsibility of any person or organization contemplating + * export to obtain such a license before exporting. + * + * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and + * distribute this software and its documentation for any purpose and + * without fee is hereby granted, provided that the above copyright + * notice appear in all copies and that both that copyright notice and + * this permission notice appear in supporting documentation, and that + * the name of M.I.T. not be used in advertising or publicity pertaining + * to distribution of the software without specific, written prior + * permission. Furthermore if you modify this software you must label + * your software as modified software and not distribute it in such a + * fashion that it might be confused with the original M.I.T. software. + * M.I.T. makes no representations about the suitability of + * this software for any purpose. It is provided "as is" without express + * or implied warranty. + */ + #include "k5-int.h" static krb5_error_code @@ -8,6 +34,7 @@ krb5_get_as_key_keytab( krb5_prompter_fct prompter, void *prompter_data, krb5_data *salt, + krb5_data *params, krb5_keyblock *as_key, void *gak_data) { @@ -115,3 +142,57 @@ cleanup: return(ret); } +krb5_error_code KRB5_CALLCONV +krb5_get_in_tkt_with_keytab(krb5_context context, krb5_flags options, + krb5_address *const *addrs, krb5_enctype *ktypes, + krb5_preauthtype *pre_auth_types, + krb5_keytab arg_keytab, krb5_ccache ccache, + krb5_creds *creds, krb5_kdc_rep **ret_as_reply) +{ + krb5_error_code retval; + krb5_get_init_creds_opt opt; + char * server = NULL; + krb5_keytab keytab; + krb5_principal client_princ, server_princ; + + krb5int_populate_gic_opt(context, &opt, + options, addrs, ktypes, + pre_auth_types); + if (arg_keytab == NULL) { + retval = krb5_kt_default(context, &keytab); + if (retval) + return retval; + } + else keytab = arg_keytab; + + retval = krb5_unparse_name( context, creds->server, &server); + if (retval) + goto cleanup; + server_princ = creds->server; + client_princ = creds->client; + retval = krb5_get_init_creds (context, + creds, creds->client, + krb5_prompter_posix, NULL, + 0, server, &opt, + krb5_get_as_key_keytab, (void *)keytab, + 0, ret_as_reply); + krb5_free_unparsed_name( context, server); + if (retval) { + goto cleanup; + } + if (creds->server) + krb5_free_principal( context, creds->server); + if (creds->client) + krb5_free_principal( context, creds->client); + creds->client = client_princ; + creds->server = server_princ; + + /* store it in the ccache! */ + if (ccache) + if ((retval = krb5_cc_store_cred(context, ccache, creds))) + goto cleanup; + cleanup: if (arg_keytab == NULL) + krb5_kt_close(context, keytab); + return retval; +} + diff --git a/src/lib/krb5/krb/gic_pwd.c b/src/lib/krb5/krb/gic_pwd.c index 7b5e0ba..af95b97 100644 --- a/src/lib/krb5/krb/gic_pwd.c +++ b/src/lib/krb5/krb/gic_pwd.c @@ -9,6 +9,7 @@ krb5_get_as_key_password( krb5_prompter_fct prompter, void *prompter_data, krb5_data *salt, + krb5_data *params, krb5_keyblock *as_key, void *gak_data) { @@ -42,7 +43,7 @@ krb5_get_as_key_password( return(EIO); if ((ret = krb5_unparse_name(context, client, &clientstr))) - return(ret); + return(ret); strcpy(promptstr, "Password for "); strncat(promptstr, clientstr, sizeof(promptstr)-strlen(promptstr)-1); @@ -74,7 +75,8 @@ krb5_get_as_key_password( defsalt.length = 0; } - ret = krb5_c_string_to_key(context, etype, password, salt, as_key); + ret = krb5_c_string_to_key_with_params(context, etype, password, salt, + params->data?params:NULL, as_key); if (defsalt.length) krb5_xfree(defsalt.data); @@ -144,6 +146,10 @@ krb5_get_init_creds_password(krb5_context context, krb5_creds *creds, krb5_princ if (!use_master) { use_master = 1; + if (as_reply) { + krb5_free_kdc_rep( context, as_reply); + as_reply = NULL; + } ret2 = krb5_get_init_creds(context, creds, client, prompter, data, start_time, in_tkt_service, options, krb5_get_as_key_password, (void *) &pw0, @@ -158,7 +164,8 @@ krb5_get_init_creds_password(krb5_context context, krb5_creds *creds, krb5_princ slave we were able to contact */ if ((ret2 == KRB5_KDC_UNREACH) || - (ret2 == KRB5_REALM_CANT_RESOLVE)) + (ret2 == KRB5_REALM_CANT_RESOLVE) || + (ret2 == KRB5_REALM_UNKNOWN)) goto cleanup; ret = ret2; @@ -366,3 +373,109 @@ cleanup: return(ret); } +void krb5int_populate_gic_opt ( + krb5_context context, krb5_get_init_creds_opt *opt, + krb5_flags options, krb5_address * const *addrs, krb5_enctype *ktypes, + krb5_preauthtype *pre_auth_types) +{ + int i; + krb5_get_init_creds_opt_init(opt); + if (addrs) + krb5_get_init_creds_opt_set_address_list(opt, (krb5_address **) addrs); + if (ktypes) { + for (i=0; ktypes[i]; i++); + if (i) + krb5_get_init_creds_opt_set_etype_list(opt, ktypes, i); + } + if (pre_auth_types) { + for (i=0; pre_auth_types[i]; i++); + if (i) + krb5_get_init_creds_opt_set_preauth_list(opt, pre_auth_types, i); + } + if (options&KDC_OPT_FORWARDABLE) + krb5_get_init_creds_opt_set_forwardable(opt, 1); + else krb5_get_init_creds_opt_set_forwardable(opt, 0); + if (options&KDC_OPT_PROXIABLE) + krb5_get_init_creds_opt_set_proxiable(opt, 1); + else krb5_get_init_creds_opt_set_proxiable(opt, 0); + + +} + +/* + Rewrites get_in_tkt in terms of newer get_init_creds API. + Attempts to get an initial ticket for creds->client to use server + creds->server, (realm is taken from creds->client), with options + options, and using creds->times.starttime, creds->times.endtime, + creds->times.renew_till as from, till, and rtime. + creds->times.renew_till is ignored unless the RENEWABLE option is requested. + + If addrs is non-NULL, it is used for the addresses requested. If it is + null, the system standard addresses are used. + + If password is non-NULL, it is converted using the cryptosystem entry + point for a string conversion routine, seeded with the client's name. + If password is passed as NULL, the password is read from the terminal, + and then converted into a key. + + A succesful call will place the ticket in the credentials cache ccache. + + returns system errors, encryption errors + */ +krb5_error_code KRB5_CALLCONV +krb5_get_in_tkt_with_password(krb5_context context, krb5_flags options, + krb5_address *const *addrs, krb5_enctype *ktypes, + krb5_preauthtype *pre_auth_types, + const char *password, krb5_ccache ccache, + krb5_creds *creds, krb5_kdc_rep **ret_as_reply) +{ + krb5_error_code retval; + krb5_data pw0; + char pw0array[1024]; + krb5_get_init_creds_opt opt; + char * server; + krb5_principal server_princ, client_princ; + + pw0array[0] = '\0'; + pw0.data = pw0array; + if (password) { + pw0.length = strlen(password); + if (pw0.length > sizeof(pw0array)) + return EINVAL; + strncpy(pw0.data, password, sizeof(pw0array)); + if (pw0.length == 0) + pw0.length = sizeof(pw0array); + } else { + pw0.length = sizeof(pw0array); + } + krb5int_populate_gic_opt(context, &opt, + options, addrs, ktypes, + pre_auth_types); + retval = krb5_unparse_name( context, creds->server, &server); + if (retval) + return (retval); + server_princ = creds->server; + client_princ = creds->client; + retval = krb5_get_init_creds (context, + creds, creds->client, + krb5_prompter_posix, NULL, + 0, server, &opt, + krb5_get_as_key_password, &pw0, + 0, ret_as_reply); + krb5_free_unparsed_name( context, server); + if (retval) { + return (retval); + } + if (creds->server) + krb5_free_principal( context, creds->server); + if (creds->client) + krb5_free_principal( context, creds->client); + creds->client = client_princ; + creds->server = server_princ; + /* store it in the ccache! */ + if (ccache) + if ((retval = krb5_cc_store_cred(context, ccache, creds))) + return (retval); + return retval; + } + diff --git a/src/lib/krb5/krb/in_tkt_ktb.c b/src/lib/krb5/krb/in_tkt_ktb.c deleted file mode 100644 index db4f3b4..0000000 --- a/src/lib/krb5/krb/in_tkt_ktb.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * lib/krb5/krb/in_tkt_ktb.c - * - * Copyright 1990,1991 by the Massachusetts Institute of Technology. - * All Rights Reserved. - * - * Export of this software from the United States of America may - * require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. Furthermore if you modify this software you must label - * your software as modified software and not distribute it in such a - * fashion that it might be confused with the original M.I.T. software. - * M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - * - * - * krb5_get_in_tkt_with_keytab() - * - */ - -#include "k5-int.h" - -struct keytab_keyproc_arg { - krb5_keytab keytab; - krb5_principal client; -}; - -/* - * Key-generator for in_tkt_keytab, below. - * "keyseed" is actually a krb5_keytab, or NULL if we should fetch - * from system area. - */ -static krb5_error_code keytab_keyproc - (krb5_context, - const krb5_enctype, - krb5_data *, - krb5_const_pointer, - krb5_keyblock **); - -static krb5_error_code -keytab_keyproc(krb5_context context, krb5_enctype type, krb5_data *salt, - krb5_const_pointer keyseed, krb5_keyblock **key) -{ - const struct keytab_keyproc_arg * arg = - (const struct keytab_keyproc_arg *)keyseed; - krb5_keyblock *realkey; - krb5_error_code retval = 0; - krb5_keytab kt_id; - krb5_keytab_entry kt_ent; - - kt_id = arg->keytab; - - if (!krb5_c_valid_enctype(type)) - return KRB5_PROG_ETYPE_NOSUPP; - - if (kt_id == NULL) - /* Fetch from default keytab location */ - if ((retval = krb5_kt_default(context, &kt_id))) - return retval; - - - if ((retval = krb5_kt_get_entry(context, kt_id, arg->client, - 0, /* don't have vno available */ - type, &kt_ent))) - goto cleanup; - - if ((retval = krb5_copy_keyblock(context, &kt_ent.key, &realkey))) { - (void) krb5_kt_free_entry(context, &kt_ent); - goto cleanup; - } - - (void) krb5_kt_free_entry(context, &kt_ent); - *key = realkey; - -cleanup: - if (! arg->keytab) - krb5_kt_close(context, kt_id); - return retval; -} - -/* - Similar to krb5_get_in_tkt_with_skey. - - Attempts to get an initial ticket for creds->client to use server - creds->server, (realm is taken from creds->client), with options - options, and using creds->times.starttime, creds->times.endtime, - creds->times.renew_till as from, till, and rtime. - creds->times.renew_till is ignored unless the RENEWABLE option is requested. - - If addrs is non-NULL, it is used for the addresses requested. If it is - null, the system standard addresses are used. - - A succesful call will place the ticket in the credentials cache ccache. - - returns system errors, encryption errors - - */ -krb5_error_code KRB5_CALLCONV -krb5_get_in_tkt_with_keytab(krb5_context context, krb5_flags options, - krb5_address *const *addrs, krb5_enctype *ktypes, - krb5_preauthtype *pre_auth_types, - krb5_keytab keytab, krb5_ccache ccache, - krb5_creds *creds, krb5_kdc_rep **ret_as_reply) -{ - struct keytab_keyproc_arg arg; - - arg.keytab = keytab; - arg.client = creds->client; - - return(krb5_get_in_tkt(context, options, addrs, ktypes, - pre_auth_types, - keytab_keyproc, (krb5_pointer)&arg, - krb5_kdc_rep_decrypt_proc, 0, creds, - ccache, ret_as_reply)); -} diff --git a/src/lib/krb5/krb/in_tkt_pwd.c b/src/lib/krb5/krb/in_tkt_pwd.c deleted file mode 100644 index 1d9ad2e..0000000 --- a/src/lib/krb5/krb/in_tkt_pwd.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * lib/krb5/krb/in_tkt_pwd.c - * - * Copyright 1990,1991 by the Massachusetts Institute of Technology. - * All Rights Reserved. - * - * Export of this software from the United States of America may - * require a specific license from the United States Government. - * It is the responsibility of any person or organization contemplating - * export to obtain such a license before exporting. - * - * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and - * distribute this software and its documentation for any purpose and - * without fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright notice and - * this permission notice appear in supporting documentation, and that - * the name of M.I.T. not be used in advertising or publicity pertaining - * to distribution of the software without specific, written prior - * permission. Furthermore if you modify this software you must label - * your software as modified software and not distribute it in such a - * fashion that it might be confused with the original M.I.T. software. - * M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" without express - * or implied warranty. - * - * - * krb5_get_in_tkt_with_password() - */ - -#include "k5-int.h" - -extern char *krb5_default_pwd_prompt1; - -/* - * key-producing procedure for use by krb5_get_in_tkt_with_password. - */ -static krb5_error_code pwd_keyproc - (krb5_context, - const krb5_enctype, - krb5_data *, - krb5_const_pointer, - krb5_keyblock **); - -static krb5_error_code -pwd_keyproc(krb5_context context, krb5_enctype type, krb5_data *salt, - krb5_const_pointer keyseed, krb5_keyblock **key) -{ - krb5_error_code retval; - krb5_data * password; - unsigned int pwsize; - - password = (krb5_data *)keyseed; - - if (!password->length) { - pwsize = BUFSIZ; - if ((password->data = malloc(pwsize)) == NULL) - return ENOMEM; - - if ((retval = krb5_read_password(context, krb5_default_pwd_prompt1, 0, - password->data, &pwsize))) { - return retval; - } - password->length = pwsize; - } - - if (!(*key = (krb5_keyblock *)malloc(sizeof(**key)))) - return ENOMEM; - - if ((retval = krb5_c_string_to_key(context, type, password, salt, *key))) - krb5_xfree(*key); - - return(retval); -} - -/* - Attempts to get an initial ticket for creds->client to use server - creds->server, (realm is taken from creds->client), with options - options, and using creds->times.starttime, creds->times.endtime, - creds->times.renew_till as from, till, and rtime. - creds->times.renew_till is ignored unless the RENEWABLE option is requested. - - If addrs is non-NULL, it is used for the addresses requested. If it is - null, the system standard addresses are used. - - If password is non-NULL, it is converted using the cryptosystem entry - point for a string conversion routine, seeded with the client's name. - If password is passed as NULL, the password is read from the terminal, - and then converted into a key. - - A succesful call will place the ticket in the credentials cache ccache. - - returns system errors, encryption errors - */ -krb5_error_code KRB5_CALLCONV -krb5_get_in_tkt_with_password(krb5_context context, krb5_flags options, - krb5_address *const *addrs, krb5_enctype *ktypes, - krb5_preauthtype *pre_auth_types, - const char *password, krb5_ccache ccache, - krb5_creds *creds, krb5_kdc_rep **ret_as_reply) -{ - krb5_error_code retval; - krb5_data data; - - - if ((data.data = (char *)password)) { - data.length = strlen(password); - } else { - data.length = 0; - } - - retval = krb5_get_in_tkt(context, options, addrs, ktypes, pre_auth_types, - pwd_keyproc, (krb5_pointer) &data, - krb5_kdc_rep_decrypt_proc, 0, - creds, ccache, ret_as_reply); - - if ((password == NULL) && (data.data)) { - memset(data.data, 0, strlen(data.data)); - free(data.data); - } - - return retval; -} - diff --git a/src/lib/krb5/krb/init_ctx.c b/src/lib/krb5/krb/init_ctx.c index 59b6123..2740d83 100644 --- a/src/lib/krb5/krb/init_ctx.c +++ b/src/lib/krb5/krb/init_ctx.c @@ -1,7 +1,7 @@ /* * lib/krb5/krb/init_ctx.c * - * Copyright 1994,1999,2000, 2002 by the Massachusetts Institute of Technology. + * Copyright 1994,1999,2000, 2002, 2003 by the Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may @@ -65,9 +65,15 @@ them. This'll be fixed, but for better compatibility, let's prefer des-crc for now. */ #define DEFAULT_ETYPE_LIST \ + "aes256-cts-hmac-sha1-96 " \ + "aes128-cts-hmac-sha1-96 " \ "des3-cbc-sha1 arcfour-hmac-md5 " \ "des-cbc-crc des-cbc-md5 des-cbc-md4 " +/* Not included: + "aes128-cts-hmac-sha1-96 " \ + */ + #if (defined(_WIN32)) extern krb5_error_code krb5_vercheck(); extern void krb5_win_ccdll_load(krb5_context context); @@ -142,6 +148,13 @@ init_common (krb5_context *context, krb5_boolean secure) if ((retval = krb5_set_default_tgs_ktypes(ctx, NULL))) goto cleanup; + ctx->conf_tgs_ktypes = calloc(ctx->tgs_ktype_count, sizeof(krb5_enctype)); + if (ctx->conf_tgs_ktypes == NULL && ctx->tgs_ktype_count != 0) + goto cleanup; + memcpy(ctx->conf_tgs_ktypes, ctx->tgs_ktypes, + sizeof(krb5_enctype) * ctx->tgs_ktype_count); + ctx->conf_tgs_ktypes_count = ctx->tgs_ktype_count; + if ((retval = krb5_os_init_context(ctx))) goto cleanup; @@ -189,11 +202,7 @@ init_common (krb5_context *context, krb5_boolean secure) "kdc_default_options", 0, KDC_OPT_RENEWABLE_OK, &tmp); ctx->kdc_default_options = tmp; -#if TARGET_OS_MAC #define DEFAULT_KDC_TIMESYNC 1 -#else -#define DEFAULT_KDC_TIMESYNC 0 -#endif profile_get_integer(ctx->profile, "libdefaults", "kdc_timesync", 0, DEFAULT_KDC_TIMESYNC, &tmp); @@ -207,16 +216,13 @@ init_common (krb5_context *context, krb5_boolean secure) * Note: DCE 1.0.3a only supports a cache type of 1 * DCE 1.1 supports a cache type of 2. */ -#if TARGET_OS_MAC #define DEFAULT_CCACHE_TYPE 4 -#else -#define DEFAULT_CCACHE_TYPE 3 -#endif profile_get_integer(ctx->profile, "libdefaults", "ccache_type", 0, DEFAULT_CCACHE_TYPE, &tmp); ctx->fcc_default_format = tmp + 0x0500; ctx->scc_default_format = tmp + 0x0500; ctx->prompt_types = 0; + ctx->use_conf_ktypes = 0; ctx->udp_pref_limit = -1; *context = ctx; @@ -243,6 +249,11 @@ krb5_free_context(krb5_context ctx) ctx->tgs_ktypes = 0; } + if (ctx->conf_tgs_ktypes) { + free(ctx->conf_tgs_ktypes); + ctx->conf_tgs_ktypes = 0; + } + if (ctx->default_realm) { free(ctx->default_realm); ctx->default_realm = 0; @@ -291,7 +302,8 @@ krb5_set_default_in_tkt_ktypes(krb5_context context, const krb5_enctype *ktypes) } static krb5_error_code -get_profile_etype_list(krb5_context context, krb5_enctype **ktypes, char *profstr, int ctx_count, krb5_enctype *ctx_list) +get_profile_etype_list(krb5_context context, krb5_enctype **ktypes, char *profstr, + int ctx_count, krb5_enctype *ctx_list) { krb5_enctype *old_ktypes; @@ -426,12 +438,19 @@ krb5_error_code KRB5_CALLCONV krb5_get_tgs_ktypes(krb5_context context, krb5_const_principal princ, krb5_enctype **ktypes) { - return(get_profile_etype_list(context, ktypes, "default_tgs_enctypes", - context->tgs_ktype_count, - context->tgs_ktypes)); + if (context->use_conf_ktypes) + /* This one is set *only* by reading the config file; it's not + set by the application. */ + return(get_profile_etype_list(context, ktypes, "default_tgs_enctypes", + context->conf_tgs_ktypes_count, + context->conf_tgs_ktypes)); + else + return(get_profile_etype_list(context, ktypes, "default_tgs_enctypes", + context->tgs_ktype_count, + context->tgs_ktypes)); } -krb5_error_code +krb5_error_code KRB5_CALLCONV krb5_get_permitted_enctypes(krb5_context context, krb5_enctype **ktypes) { return(get_profile_etype_list(context, ktypes, "permitted_enctypes", diff --git a/src/lib/krb5/krb/kfree.c b/src/lib/krb5/krb/kfree.c index 46d485d..4700439 100644 --- a/src/lib/krb5/krb/kfree.c +++ b/src/lib/krb5/krb/kfree.c @@ -246,6 +246,7 @@ void krb5_free_etype_info(krb5_context context, krb5_etype_info info) for(i=0; info[i] != NULL; i++) { if (info[i]->salt) free(info[i]->salt); + krb5_free_data_contents( context, &info[i]->s2kparams); free(info[i]); } free(info); @@ -429,14 +430,20 @@ krb5_free_pwd_data(krb5_context context, krb5_pwd_data *val) void KRB5_CALLCONV krb5_free_pwd_sequences(krb5_context context, passwd_phrase_element **val) { - if ((*val)->passwd) { - krb5_xfree((*val)->passwd); - (*val)->passwd = 0; - } - if ((*val)->phrase) { - krb5_xfree((*val)->phrase); - (*val)->phrase = 0; + register passwd_phrase_element **temp; + + for (temp = val; *temp; temp++) { + if ((*temp)->passwd) { + krb5_free_data(context, (*temp)->passwd); + (*temp)->passwd = 0; + } + if ((*temp)->phrase) { + krb5_free_data(context, (*temp)->phrase); + (*temp)->phrase = 0; + } + krb5_xfree(*temp); } + krb5_xfree(val); } diff --git a/src/lib/krb5/krb/mk_cred.c b/src/lib/krb5/krb/mk_cred.c index 6389298..04248c0 100644 --- a/src/lib/krb5/krb/mk_cred.c +++ b/src/lib/krb5/krb/mk_cred.c @@ -182,9 +182,8 @@ krb5_mk_ncred(krb5_context context, krb5_auth_context auth_context, krb5_creds * memset(pcred->tickets, 0, sizeof(krb5_ticket *) * (ncred +1)); /* Get keyblock */ - if ((keyblock = auth_context->local_subkey) == NULL) - if ((keyblock = auth_context->remote_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->send_subkey) == NULL) + keyblock = auth_context->keyblock; /* Get replay info */ if ((auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_DO_TIME) && diff --git a/src/lib/krb5/krb/mk_priv.c b/src/lib/krb5/krb/mk_priv.c index 196b6ee..efe254a 100644 --- a/src/lib/krb5/krb/mk_priv.c +++ b/src/lib/krb5/krb/mk_priv.c @@ -119,9 +119,8 @@ krb5_mk_priv(krb5_context context, krb5_auth_context auth_context, memset((char *) &replaydata, 0, sizeof(krb5_replay_data)); /* Get keyblock */ - if ((keyblock = auth_context->local_subkey) == NULL) - if ((keyblock = auth_context->remote_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->send_subkey) == NULL) + keyblock = auth_context->keyblock; /* Get replay info */ if ((auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_DO_TIME) && diff --git a/src/lib/krb5/krb/mk_rep.c b/src/lib/krb5/krb/mk_rep.c index 31f3fe5..393f634 100644 --- a/src/lib/krb5/krb/mk_rep.c +++ b/src/lib/krb5/krb/mk_rep.c @@ -59,7 +59,14 @@ krb5_mk_rep(krb5_context context, krb5_auth_context auth_context, krb5_data *out repl.ctime = auth_context->authentp->ctime; repl.cusec = auth_context->authentp->cusec; - repl.subkey = auth_context->authentp->subkey; + if (auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_USE_SUBKEY) { + retval = krb5int_generate_and_save_subkey (context, auth_context, + auth_context->keyblock); + if (retval) + return retval; + repl.subkey = auth_context->send_subkey; + } else + repl.subkey = auth_context->authentp->subkey; repl.seq_number = auth_context->local_seq_number; /* encode it before encrypting */ diff --git a/src/lib/krb5/krb/mk_req_ext.c b/src/lib/krb5/krb/mk_req_ext.c index 1ed14a9..cdb8f69 100644 --- a/src/lib/krb5/krb/mk_req_ext.c +++ b/src/lib/krb5/krb/mk_req_ext.c @@ -68,7 +68,39 @@ static krb5_error_code krb5_generate_authenticator (krb5_context, krb5_authenticator *, krb5_principal, krb5_checksum *, krb5_keyblock *, - krb5_int32, krb5_authdata ** ); + krb5_ui_4, krb5_authdata ** ); + +krb5_error_code +krb5int_generate_and_save_subkey (krb5_context context, + krb5_auth_context auth_context, + krb5_keyblock *keyblock) +{ + /* Provide some more fodder for random number code. + This isn't strong cryptographically; the point here is not + to guarantee randomness, but to make it less likely that multiple + sessions could pick the same subkey. */ + struct { + krb5_int32 sec, usec; + } rnd_data; + krb5_data d; + krb5_error_code retval; + + krb5_crypto_us_timeofday (&rnd_data.sec, &rnd_data.usec); + d.length = sizeof (rnd_data); + d.data = (char *) &rnd_data; + (void) krb5_c_random_add_entropy (context, KRB5_C_RANDSOURCE_TIMING, &d); + + if ((retval = krb5_generate_subkey(context, keyblock, &auth_context->send_subkey))) + return retval; + retval = krb5_copy_keyblock(context, auth_context->send_subkey, + &auth_context->recv_subkey); + if (retval) { + krb5_free_keyblock(context, auth_context->send_subkey); + auth_context->send_subkey = NULL; + return retval; + } + return 0; +} krb5_error_code KRB5_CALLCONV krb5_mk_req_extended(krb5_context context, krb5_auth_context *auth_context, @@ -130,22 +162,10 @@ krb5_mk_req_extended(krb5_context context, krb5_auth_context *auth_context, goto cleanup; } - if ((ap_req_options & AP_OPTS_USE_SUBKEY)&&(!(*auth_context)->local_subkey)) { - /* Provide some more fodder for random number code. - This isn't strong cryptographically; the point here is not - to guarantee randomness, but to make it less likely that multiple - sessions could pick the same subkey. */ - struct { - krb5_int32 sec, usec; - } rnd_data; - krb5_data d; - krb5_crypto_us_timeofday (&rnd_data.sec, &rnd_data.usec); - d.length = sizeof (rnd_data); - d.data = (char *) &rnd_data; - (void) krb5_c_random_add_entropy (context, KRB5_C_RANDSOURCE_TIMING, &d); - - if ((retval = krb5_generate_subkey(context, &(in_creds)->keyblock, - &(*auth_context)->local_subkey))) + if ((ap_req_options & AP_OPTS_USE_SUBKEY)&&(!(*auth_context)->send_subkey)) { + retval = krb5int_generate_and_save_subkey (context, *auth_context, + &in_creds->keyblock); + if (retval) goto cleanup; } @@ -178,7 +198,7 @@ krb5_mk_req_extended(krb5_context context, krb5_auth_context *auth_context, if ((retval = krb5_generate_authenticator(context, (*auth_context)->authentp, (in_creds)->client, checksump, - (*auth_context)->local_subkey, + (*auth_context)->send_subkey, (*auth_context)->local_seq_number, (in_creds)->authdata))) goto cleanup_cksum; @@ -232,7 +252,7 @@ cleanup: } static krb5_error_code -krb5_generate_authenticator(krb5_context context, krb5_authenticator *authent, krb5_principal client, krb5_checksum *cksum, krb5_keyblock *key, krb5_int32 seq_number, krb5_authdata **authorization) +krb5_generate_authenticator(krb5_context context, krb5_authenticator *authent, krb5_principal client, krb5_checksum *cksum, krb5_keyblock *key, krb5_ui_4 seq_number, krb5_authdata **authorization) { krb5_error_code retval; diff --git a/src/lib/krb5/krb/mk_safe.c b/src/lib/krb5/krb/mk_safe.c index 992a456..eefcab7 100644 --- a/src/lib/krb5/krb/mk_safe.c +++ b/src/lib/krb5/krb/mk_safe.c @@ -120,9 +120,8 @@ krb5_mk_safe(krb5_context context, krb5_auth_context auth_context, const krb5_da memset((char *) &replaydata, 0, sizeof(krb5_replay_data)); /* Get keyblock */ - if ((keyblock = auth_context->local_subkey) == NULL) - if ((keyblock = auth_context->remote_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->send_subkey) == NULL) + keyblock = auth_context->keyblock; /* Get replay info */ if ((auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_DO_TIME) && diff --git a/src/lib/krb5/krb/parse.c b/src/lib/krb5/krb/parse.c index abbcfbe..3debb6a 100644 --- a/src/lib/krb5/krb/parse.c +++ b/src/lib/krb5/krb/parse.c @@ -170,11 +170,13 @@ krb5_parse_name(krb5_context context, const char *name, krb5_principal *nprincip cp++; size++; } else if (c == COMPONENT_SEP) { - krb5_princ_component(context, principal, i)->length = size; + if (krb5_princ_size(context, principal) > i) + krb5_princ_component(context, principal, i)->length = size; size = 0; i++; } else if (c == REALM_SEP) { - krb5_princ_component(context, principal, i)->length = size; + if (krb5_princ_size(context, principal) > i) + krb5_princ_component(context, principal, i)->length = size; size = 0; parsed_realm = cp+1; } else @@ -183,7 +185,8 @@ krb5_parse_name(krb5_context context, const char *name, krb5_principal *nprincip if (parsed_realm) krb5_princ_realm(context, principal)->length = size; else - krb5_princ_component(context, principal, i)->length = size; + if (krb5_princ_size(context, principal) > i) + krb5_princ_component(context, principal, i)->length = size; if (i + 1 != components) { #if !defined(_WIN32) && !defined(macintosh) fprintf(stderr, diff --git a/src/lib/krb5/krb/preauth2.c b/src/lib/krb5/krb/preauth2.c index e50440e..6238a82 100644 --- a/src/lib/krb5/krb/preauth2.c +++ b/src/lib/krb5/krb/preauth2.c @@ -35,7 +35,7 @@ typedef krb5_error_code (*pa_function)(krb5_context, krb5_kdc_req *request, krb5_pa_data *in_padata, krb5_pa_data **out_padata, - krb5_data *salt, + krb5_data *salt, krb5_data *s2kparams, krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter_fct, @@ -57,7 +57,7 @@ krb5_error_code pa_salt(krb5_context context, krb5_kdc_req *request, krb5_pa_data *in_padata, krb5_pa_data **out_padata, - krb5_data *salt, + krb5_data *salt, krb5_data *s2kparams, krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter, void *prompter_data, @@ -65,22 +65,11 @@ krb5_error_code pa_salt(krb5_context context, { krb5_data tmp; - /* screw the abstraction. If there was a *reasonable* copy_data, - I'd use it. But I'm inside the library, which is the twilight - zone of source code, so I can do anything. */ - + tmp.data = in_padata->contents; tmp.length = in_padata->length; - if (tmp.length) { - if ((tmp.data = malloc(tmp.length)) == NULL) - return ENOMEM; - memcpy(tmp.data, in_padata->contents, tmp.length); - } else { - tmp.data = NULL; - } - - *salt = tmp; - - /* assume that no other salt was allocated */ + krb5_free_data_contents(context, salt); + krb5int_copy_data_contents(context, &tmp, salt); + if (in_padata->pa_type == KRB5_PADATA_AFS3_SALT) salt->length = SALT_TYPE_AFS_LENGTH; @@ -94,6 +83,7 @@ krb5_error_code pa_enc_timestamp(krb5_context context, krb5_pa_data *in_padata, krb5_pa_data **out_padata, krb5_data *salt, + krb5_data *s2kparams, krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter, @@ -119,7 +109,7 @@ krb5_error_code pa_enc_timestamp(krb5_context context, if ((ret = ((*gak_fct)(context, request->client, *etype ? *etype : request->ktype[0], prompter, prompter_data, - salt, as_key, gak_data)))) + salt, s2kparams, as_key, gak_data)))) return(ret); } @@ -233,6 +223,7 @@ krb5_error_code pa_sam(krb5_context context, krb5_pa_data *in_padata, krb5_pa_data **out_padata, krb5_data *salt, + krb5_data *s2kparams, krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter, @@ -283,7 +274,7 @@ krb5_error_code pa_sam(krb5_context context, *etype = ENCTYPE_DES_CBC_CRC; if ((ret = (gak_fct)(context, request->client, *etype, prompter, - prompter_data, salt, as_key, gak_data))) + prompter_data, salt, s2kparams, as_key, gak_data))) return(ret); } sprintf(name, "%.*s", @@ -472,6 +463,7 @@ krb5_error_code pa_sam_2(krb5_context context, krb5_pa_data *in_padata, krb5_pa_data **out_padata, krb5_data *salt, + krb5_data *s2kparams, krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter, @@ -542,7 +534,7 @@ krb5_error_code pa_sam_2(krb5_context context, retval = (gak_fct)(context, request->client, sc2b->sam_etype, prompter, - prompter_data, salt, as_key, gak_data); + prompter_data, salt, s2kparams, as_key, gak_data); if (retval) { krb5_free_sam_challenge_2(context, sc2); krb5_free_sam_challenge_2_body(context, sc2b); @@ -827,87 +819,19 @@ static const pa_types_t pa_types[] = { }, }; -static void -sort_etype_info(krb5_context context, krb5_kdc_req *request, - krb5_etype_info_entry **etype_info) -{ -/* Originally adapted from a proposed solution in ticket 1006. This - * solution is not efficient, but implementing an efficient sort - * with a comparison function based on order in the kdc request would - * be difficult.*/ - krb5_etype_info_entry *tmp; - int i, j, e; - krb5_boolean similar; - - if (etype_info == NULL) - return; - - /* First, move up etype_info_entries whose enctype exactly matches a - * requested enctype. - */ - e = 0; - for ( i = 0 ; i < request->nktypes && etype_info[e] != NULL ; i++ ) - { - if (request->ktype[i] == etype_info[e]->etype) - { - e++; - continue; - } - for ( j = e+1 ; etype_info[j] ; j++ ) - if (request->ktype[i] == etype_info[j]->etype) - break; - if (etype_info[j] == NULL) - continue; - - tmp = etype_info[j]; - etype_info[j] = etype_info[e]; - etype_info[e] = tmp; - e++; - } - - /* Then move up etype_info_entries whose enctype is similar to a - * requested enctype. - */ - for ( i = 0 ; i < request->nktypes && etype_info[e] != NULL ; i++ ) - { - if (krb5_c_enctype_compare(context, request->ktype[i], etype_info[e]->etype, &similar) != 0) - continue; - - if (similar) - { - e++; - continue; - } - for ( j = e+1 ; etype_info[j] ; j++ ) - { - if (krb5_c_enctype_compare(context, request->ktype[i], etype_info[j]->etype, &similar) != 0) - continue; - - if (similar) - break; - } - if (etype_info[j] == NULL) - continue; - - tmp = etype_info[j]; - etype_info[j] = etype_info[e]; - etype_info[e] = tmp; - e++; - } -} - - krb5_error_code krb5_do_preauth(krb5_context context, krb5_kdc_req *request, krb5_pa_data **in_padata, krb5_pa_data ***out_padata, - krb5_data *salt, krb5_enctype *etype, + krb5_data *salt, krb5_data *s2kparams, + krb5_enctype *etype, krb5_keyblock *as_key, krb5_prompter_fct prompter, void *prompter_data, krb5_gic_get_as_key_fct gak_fct, void *gak_data) { int h, i, j, out_pa_list_size; - krb5_pa_data *out_pa, **out_pa_list; + int seen_etype_info2 = 0; + krb5_pa_data *out_pa = NULL, **out_pa_list = NULL; krb5_data scratch; krb5_etype_info etype_info = NULL; krb5_error_code ret; @@ -938,6 +862,7 @@ krb5_do_preauth(krb5_context context, for (h=0; h<(sizeof(paorder)/sizeof(paorder[0])); h++) { realdone = 0; for (i=0; in_padata[i] && !realdone; i++) { + int k, l, etype_found, valid_etype_found; /* * This is really gross, but is necessary to prevent * lossge when talking to a 1.0.x KDC, which returns an @@ -946,27 +871,81 @@ krb5_do_preauth(krb5_context context, */ switch (in_padata[i]->pa_type) { case KRB5_PADATA_ETYPE_INFO: - if (etype_info) - continue; + case KRB5_PADATA_ETYPE_INFO2: + { + krb5_preauthtype pa_type = in_padata[i]->pa_type; + if (etype_info) { + if (seen_etype_info2 || pa_type != KRB5_PADATA_ETYPE_INFO2) + continue; + if (pa_type == KRB5_PADATA_ETYPE_INFO2) { + krb5_free_etype_info( context, etype_info); + etype_info = NULL; + } + } + scratch.length = in_padata[i]->length; scratch.data = (char *) in_padata[i]->contents; - ret = decode_krb5_etype_info(&scratch, &etype_info); + if (pa_type == KRB5_PADATA_ETYPE_INFO2) { + seen_etype_info2++; + ret = decode_krb5_etype_info2(&scratch, &etype_info); + } + else ret = decode_krb5_etype_info(&scratch, &etype_info); if (ret) { - if (out_pa_list) { - out_pa_list[out_pa_list_size++] = NULL; - krb5_free_pa_data(context, out_pa_list); - } - return ret; + ret = 0; /*Ignore error and etype_info element*/ + krb5_free_etype_info( context, etype_info); + etype_info = NULL; + continue; } if (etype_info[0] == NULL) { krb5_free_etype_info(context, etype_info); etype_info = NULL; break; } - sort_etype_info(context, request, etype_info); - salt->data = (char *) etype_info[0]->salt; - salt->length = etype_info[0]->length; - *etype = etype_info[0]->etype; + /* + * Select first etype in our request which is also in + * etype-info (preferring client request ktype order). + */ + for (etype_found = 0, valid_etype_found = 0, k = 0; + !etype_found && k < request->nktypes; k++) { + for (l = 0; etype_info[l]; l++) { + if (etype_info[l]->etype == request->ktype[k]) { + etype_found++; + break; + } + /* check if program has support for this etype for more + * precise error reporting. + */ + if (valid_enctype(etype_info[l]->etype)) + valid_etype_found++; + } + } + if (!etype_found) { + if (valid_etype_found) { + /* supported enctype but not requested */ + ret = KRB5_CONFIG_ETYPE_NOSUPP; + goto cleanup; + } + else { + /* unsupported enctype */ + ret = KRB5_PROG_ETYPE_NOSUPP; + goto cleanup; + } + + } + scratch.data = (char *) etype_info[l]->salt; + scratch.length = etype_info[l]->length; + krb5_free_data_contents(context, salt); + if (scratch.length == KRB5_ETYPE_NO_SALT) + salt->data = NULL; + else + if ((ret = krb5int_copy_data_contents( context, &scratch, salt)) != 0) + goto cleanup; + *etype = etype_info[l]->etype; + krb5_free_data_contents(context, s2kparams); + if ((ret = krb5int_copy_data_contents(context, + &etype_info[l]->s2kparams, + s2kparams)) != 0) + goto cleanup; #ifdef DEBUG for (j = 0; etype_info[j]; j++) { krb5_etype_info_entry *e = etype_info[j]; @@ -978,6 +957,7 @@ krb5_do_preauth(krb5_context context, } #endif break; + } case KRB5_PADATA_PW_SALT: case KRB5_PADATA_AFS3_SALT: if (etype_info) @@ -993,16 +973,10 @@ krb5_do_preauth(krb5_context context, if ((ret = ((*pa_types[j].fct)(context, request, in_padata[i], &out_pa, - salt, etype, as_key, + salt, s2kparams, etype, as_key, prompter, prompter_data, gak_fct, gak_data)))) { - if (out_pa_list) { - out_pa_list[out_pa_list_size++] = NULL; - krb5_free_pa_data(context, out_pa_list); - } - if (etype_info) - krb5_free_etype_info(context, etype_info); - return(ret); + goto cleanup; } if (out_pa) { @@ -1010,18 +984,22 @@ krb5_do_preauth(krb5_context context, if ((out_pa_list = (krb5_pa_data **) malloc(2*sizeof(krb5_pa_data *))) - == NULL) - return(ENOMEM); + == NULL) { + ret = ENOMEM; + goto cleanup; + } } else { if ((out_pa_list = (krb5_pa_data **) realloc(out_pa_list, (out_pa_list_size+2)* sizeof(krb5_pa_data *))) - == NULL) - /* XXX this will leak the pointers which + == NULL) { + /* XXX this will leak the pointers which have already been allocated. oh well. */ - return(ENOMEM); + ret = ENOMEM; + goto cleanup; + } } out_pa_list[out_pa_list_size++] = out_pa; @@ -1037,6 +1015,16 @@ krb5_do_preauth(krb5_context context, out_pa_list[out_pa_list_size++] = NULL; *out_padata = out_pa_list; - + if (etype_info) + krb5_free_etype_info(context, etype_info); + return(0); + cleanup: + if (out_pa_list) { + out_pa_list[out_pa_list_size++] = NULL; + krb5_free_pa_data(context, out_pa_list); + } + if (etype_info) + krb5_free_etype_info(context, etype_info); + return (ret); } diff --git a/src/lib/krb5/krb/rd_cred.c b/src/lib/krb5/krb/rd_cred.c index 228219f..11be47f 100644 --- a/src/lib/krb5/krb/rd_cred.c +++ b/src/lib/krb5/krb/rd_cred.c @@ -33,15 +33,11 @@ decrypt_credencdata(krb5_context context, krb5_cred *pcred, krb5_keyblock *pkeyb /* now decode the decrypted stuff */ if ((retval = decode_krb5_enc_cred_part(&scratch, &ppart))) - goto cleanup_encpart; + goto cleanup; *pcredenc = *ppart; retval = 0; -cleanup_encpart: - memset(ppart, 0, sizeof(*ppart)); - krb5_xfree(ppart); - cleanup: memset(scratch.data, 0, scratch.length); krb5_xfree(scratch.data); @@ -169,9 +165,8 @@ krb5_rd_cred(krb5_context context, krb5_auth_context auth_context, krb5_data *pc krb5_replay_data replaydata; /* Get keyblock */ - if ((keyblock = auth_context->remote_subkey) == NULL) - if ((keyblock = auth_context->local_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->recv_subkey) == NULL) + keyblock = auth_context->keyblock; if (((auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_RET_TIME) || (auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_RET_SEQUENCE)) && diff --git a/src/lib/krb5/krb/rd_priv.c b/src/lib/krb5/krb/rd_priv.c index 8132056..cf74807 100644 --- a/src/lib/krb5/krb/rd_priv.c +++ b/src/lib/krb5/krb/rd_priv.c @@ -156,9 +156,8 @@ krb5_rd_priv(krb5_context context, krb5_auth_context auth_context, const krb5_da krb5_replay_data replaydata; /* Get keyblock */ - if ((keyblock = auth_context->remote_subkey) == NULL) - if ((keyblock = auth_context->local_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->recv_subkey) == NULL) + keyblock = auth_context->keyblock; if (((auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_RET_TIME) || (auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_RET_SEQUENCE)) && @@ -247,7 +246,8 @@ krb5_rd_priv(krb5_context context, krb5_auth_context auth_context, const krb5_da } if (auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) { - if (auth_context->remote_seq_number != replaydata.seq) { + if (!krb5int_auth_con_chkseqnum(context, auth_context, + replaydata.seq)) { retval = KRB5KRB_AP_ERR_BADORDER; goto error; } diff --git a/src/lib/krb5/krb/rd_rep.c b/src/lib/krb5/krb/rd_rep.c index e35e43f..8019229 100644 --- a/src/lib/krb5/krb/rd_rep.c +++ b/src/lib/krb5/krb/rd_rep.c @@ -81,8 +81,24 @@ krb5_rd_rep(krb5_context context, krb5_auth_context auth_context, const krb5_dat /* Set auth subkey */ if ((*repl)->subkey) { + if (auth_context->recv_subkey) { + krb5_free_keyblock(context, auth_context->recv_subkey); + auth_context->recv_subkey = NULL; + } retval = krb5_copy_keyblock(context, (*repl)->subkey, - &auth_context->remote_subkey); + &auth_context->recv_subkey); + if (retval) + goto clean_scratch; + if (auth_context->send_subkey) { + krb5_free_keyblock(context, auth_context->send_subkey); + auth_context->send_subkey = NULL; + } + retval = krb5_copy_keyblock(context, (*repl)->subkey, + &auth_context->send_subkey); + if (retval) { + krb5_free_keyblock(context, auth_context->send_subkey); + auth_context->send_subkey = NULL; + } } /* Get remote sequence number */ diff --git a/src/lib/krb5/krb/rd_req.c b/src/lib/krb5/krb/rd_req.c index f844e3c..9a2f458 100644 --- a/src/lib/krb5/krb/rd_req.c +++ b/src/lib/krb5/krb/rd_req.c @@ -83,7 +83,9 @@ krb5_rd_req(krb5_context context, krb5_auth_context *auth_context, const krb5_da server = request->ticket->server; } /* Get an rcache if necessary. */ - if (((*auth_context)->rcache == NULL) && server) { + if (((*auth_context)->rcache == NULL) + && ((*auth_context)->auth_context_flags & KRB5_AUTH_CONTEXT_DO_TIME) +&& server) { if ((retval = krb5_get_server_rcache(context, krb5_princ_component(context,server,0), &(*auth_context)->rcache))) goto cleanup_auth_context; diff --git a/src/lib/krb5/krb/rd_req_dec.c b/src/lib/krb5/krb/rd_req_dec.c index fa126b4..3c398ae 100644 --- a/src/lib/krb5/krb/rd_req_dec.c +++ b/src/lib/krb5/krb/rd_req_dec.c @@ -290,10 +290,18 @@ krb5_rd_req_decoded_opt(krb5_context context, krb5_auth_context *auth_context, c if ((*auth_context)->authentp->subkey) { if ((retval = krb5_copy_keyblock(context, (*auth_context)->authentp->subkey, - &((*auth_context)->remote_subkey)))) + &((*auth_context)->recv_subkey)))) goto cleanup; + retval = krb5_copy_keyblock(context, (*auth_context)->authentp->subkey, + &((*auth_context)->send_subkey)); + if (retval) { + krb5_free_keyblock(context, (*auth_context)->recv_subkey); + (*auth_context)->recv_subkey = NULL; + goto cleanup; + } } else { - (*auth_context)->remote_subkey = 0; + (*auth_context)->recv_subkey = 0; + (*auth_context)->send_subkey = 0; } if ((retval = krb5_copy_keyblock(context, req->ticket->enc_part2->session, diff --git a/src/lib/krb5/krb/rd_safe.c b/src/lib/krb5/krb/rd_safe.c index 0f6cec2..15dc6dc 100644 --- a/src/lib/krb5/krb/rd_safe.c +++ b/src/lib/krb5/krb/rd_safe.c @@ -51,6 +51,7 @@ krb5_rd_safe_basic(krb5_context context, const krb5_data *inbuf, const krb5_keyb { krb5_error_code retval; krb5_safe * message; + krb5_data safe_body; krb5_checksum our_cksum, *his_cksum; krb5_octet zero_octet = 0; krb5_data *scratch; @@ -59,7 +60,7 @@ krb5_rd_safe_basic(krb5_context context, const krb5_data *inbuf, const krb5_keyb if (!krb5_is_krb_safe(inbuf)) return KRB5KRB_AP_ERR_MSG_TYPE; - if ((retval = decode_krb5_safe(inbuf, &message))) + if ((retval = decode_krb5_safe_with_body(inbuf, &message, &safe_body))) return retval; if (!krb5_c_valid_cksumtype(message->checksum->checksum_type)) { @@ -113,7 +114,7 @@ krb5_rd_safe_basic(krb5_context context, const krb5_data *inbuf, const krb5_keyb message->checksum = &our_cksum; - if ((retval = encode_krb5_safe(message, &scratch))) + if ((retval = encode_krb5_safe_with_body(message, &safe_body, &scratch))) goto cleanup; message->checksum = his_cksum; @@ -126,8 +127,17 @@ krb5_rd_safe_basic(krb5_context context, const krb5_data *inbuf, const krb5_keyb krb5_free_data(context, scratch); if (!valid) { - retval = KRB5KRB_AP_ERR_MODIFIED; - goto cleanup; + /* + * Checksum over only the KRB-SAFE-BODY, like RFC 1510 says, in + * case someone actually implements it correctly. + */ + retval = krb5_c_verify_checksum(context, keyblock, + KRB5_KEYUSAGE_KRB_SAFE_CKSUM, + &safe_body, his_cksum, &valid); + if (!valid) { + retval = KRB5KRB_AP_ERR_MODIFIED; + goto cleanup; + } } replaydata->timestamp = message->timestamp; @@ -161,9 +171,8 @@ krb5_rd_safe(krb5_context context, krb5_auth_context auth_context, const krb5_da return KRB5_RC_REQUIRED; /* Get keyblock */ - if ((keyblock = auth_context->remote_subkey) == NULL) - if ((keyblock = auth_context->local_subkey) == NULL) - keyblock = auth_context->keyblock; + if ((keyblock = auth_context->recv_subkey) == NULL) + keyblock = auth_context->keyblock; { krb5_address * premote_fulladdr = NULL; @@ -240,7 +249,8 @@ krb5_rd_safe(krb5_context context, krb5_auth_context auth_context, const krb5_da } if (auth_context->auth_context_flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) { - if (auth_context->remote_seq_number != replaydata.seq) { + if (!krb5int_auth_con_chkseqnum(context, auth_context, + replaydata.seq)) { retval = KRB5KRB_AP_ERR_BADORDER; goto error; } diff --git a/src/lib/krb5/krb/send_tgs.c b/src/lib/krb5/krb/send_tgs.c index 244d18e..34a98c0 100644 --- a/src/lib/krb5/krb/send_tgs.c +++ b/src/lib/krb5/krb/send_tgs.c @@ -278,6 +278,7 @@ send_again: } krb5_free_error(context, err_reply); } + rep->message_type = KRB5_ERROR; } else if (krb5_is_tgs_rep(&rep->response)) rep->message_type = KRB5_TGS_REP; else /* XXX: assume it's an error */ diff --git a/src/lib/krb5/krb/ser_actx.c b/src/lib/krb5/krb/ser_actx.c index a8ec90e..32519e1 100644 --- a/src/lib/krb5/krb/ser_actx.c +++ b/src/lib/krb5/krb/ser_actx.c @@ -151,21 +151,21 @@ krb5_auth_context_size(krb5_context kcontext, krb5_pointer arg, size_t *sizep) required += sizeof(krb5_int32); } - /* Calculate size required by local_subkey, if appropriate */ - if (!kret && auth_context->local_subkey) { + /* Calculate size required by send_subkey, if appropriate */ + if (!kret && auth_context->send_subkey) { kret = krb5_size_opaque(kcontext, KV5M_KEYBLOCK, - (krb5_pointer) auth_context->local_subkey, + (krb5_pointer) auth_context->send_subkey, &required); if (!kret) required += sizeof(krb5_int32); } - /* Calculate size required by remote_subkey, if appropriate */ - if (!kret && auth_context->remote_subkey) { + /* Calculate size required by recv_subkey, if appropriate */ + if (!kret && auth_context->recv_subkey) { kret = krb5_size_opaque(kcontext, KV5M_KEYBLOCK, - (krb5_pointer) auth_context->remote_subkey, + (krb5_pointer) auth_context->recv_subkey, &required); if (!kret) required += sizeof(krb5_int32); @@ -300,23 +300,23 @@ krb5_auth_context_externalize(krb5_context kcontext, krb5_pointer arg, krb5_octe } /* Now handle subkey, if appropriate */ - if (!kret && auth_context->local_subkey) { + if (!kret && auth_context->send_subkey) { (void) krb5_ser_pack_int32(TOKEN_LSKBLOCK, &bp, &remain); kret = krb5_externalize_opaque(kcontext, KV5M_KEYBLOCK, (krb5_pointer) - auth_context->local_subkey, + auth_context->send_subkey, &bp, &remain); } /* Now handle subkey, if appropriate */ - if (!kret && auth_context->remote_subkey) { + if (!kret && auth_context->recv_subkey) { (void) krb5_ser_pack_int32(TOKEN_RSKBLOCK, &bp, &remain); kret = krb5_externalize_opaque(kcontext, KV5M_KEYBLOCK, (krb5_pointer) - auth_context->remote_subkey, + auth_context->recv_subkey, &bp, &remain); } @@ -474,26 +474,26 @@ krb5_auth_context_internalize(krb5_context kcontext, krb5_pointer *argp, krb5_oc kret = krb5_ser_unpack_int32(&tag, &bp, &remain); } - /* This is the local_subkey */ + /* This is the send_subkey */ if (!kret && (tag == TOKEN_LSKBLOCK)) { if (!(kret = krb5_internalize_opaque(kcontext, KV5M_KEYBLOCK, (krb5_pointer *) &auth_context-> - local_subkey, + send_subkey, &bp, &remain))) kret = krb5_ser_unpack_int32(&tag, &bp, &remain); } - /* This is the remote_subkey */ + /* This is the recv_subkey */ if (!kret) { if (tag == TOKEN_RSKBLOCK) { kret = krb5_internalize_opaque(kcontext, KV5M_KEYBLOCK, (krb5_pointer *) &auth_context-> - remote_subkey, + recv_subkey, &bp, &remain); } diff --git a/src/lib/krb5/krb/serialize.c b/src/lib/krb5/krb/serialize.c index 7c5f17a..9cbcef7 100644 --- a/src/lib/krb5/krb/serialize.c +++ b/src/lib/krb5/krb/serialize.c @@ -174,7 +174,7 @@ krb5_internalize_opaque(krb5_context kcontext, krb5_magic odtype, krb5_pointer * } /* - * krb5_ser_pack_int32() - Pack a 4-byte integer if space is availble. + * krb5_ser_pack_int32() - Pack a 4-byte integer if space is available. * Update buffer pointer and remaining space. */ krb5_error_code KRB5_CALLCONV @@ -194,6 +194,23 @@ krb5_ser_pack_int32(krb5_int32 iarg, krb5_octet **bufp, size_t *remainp) } /* + * krb5_ser_pack_int64() - Pack an 8-byte integer if space is available. + * Update buffer pointer and remaining space. + */ +krb5_error_code KRB5_CALLCONV +krb5_ser_pack_int64(krb5_int64 iarg, krb5_octet **bufp, size_t *remainp) +{ + if (*remainp >= sizeof(krb5_int64)) { + store_64_be(iarg, (unsigned char *)*bufp); + *bufp += sizeof(krb5_int64); + *remainp -= sizeof(krb5_int64); + return(0); + } + else + return(ENOMEM); +} + +/* * krb5_ser_pack_bytes() - Pack a string of bytes. */ krb5_error_code KRB5_CALLCONV @@ -229,6 +246,22 @@ krb5_ser_unpack_int32(krb5_int32 *intp, krb5_octet **bufp, size_t *remainp) } /* + * krb5_ser_unpack_int64() - Unpack an 8-byte integer if it's there. + */ +krb5_error_code KRB5_CALLCONV +krb5_ser_unpack_int64(krb5_int64 *intp, krb5_octet **bufp, size_t *remainp) +{ + if (*remainp >= sizeof(krb5_int64)) { + *intp = load_64_be((unsigned char *)*bufp); + *bufp += sizeof(krb5_int64); + *remainp -= sizeof(krb5_int64); + return(0); + } + else + return(ENOMEM); +} + +/* * krb5_ser_unpack_bytes() - Unpack a byte string if it's there. */ krb5_error_code KRB5_CALLCONV diff --git a/src/lib/krb5/krb/srv_rcache.c b/src/lib/krb5/krb/srv_rcache.c index aa41bc5..e66d2d3 100644 --- a/src/lib/krb5/krb/srv_rcache.c +++ b/src/lib/krb5/krb/srv_rcache.c @@ -48,6 +48,9 @@ krb5_get_server_rcache(krb5_context context, const krb5_data *piece, krb5_rcache unsigned long uid = geteuid(); #endif + if (piece == NULL) + return ENOMEM; + rcache = (krb5_rcache) malloc(sizeof(*rcache)); if (!rcache) return ENOMEM; @@ -58,7 +61,7 @@ krb5_get_server_rcache(krb5_context context, const krb5_data *piece, krb5_rcache len = piece->length + 3 + 1; for (i = 0; i < piece->length; i++) { - if (piece->data[i] == '\\') + if (piece->data[i] == '-') len++; else if (!isvalidrcname((int) piece->data[i])) len += 3; @@ -78,14 +81,14 @@ krb5_get_server_rcache(krb5_context context, const krb5_data *piece, krb5_rcache strcpy(cachename, "rc_"); p = 3; for (i = 0; i < piece->length; i++) { - if (piece->data[i] == '\\') { - cachename[p++] = '\\'; - cachename[p++] = '\\'; + if (piece->data[i] == '-') { + cachename[p++] = '-'; + cachename[p++] = '-'; continue; } if (!isvalidrcname((int) piece->data[i])) { sprintf(tmp, "%03o", piece->data[i]); - cachename[p++] = '\\'; + cachename[p++] = '-'; cachename[p++] = tmp[0]; cachename[p++] = tmp[1]; cachename[p++] = tmp[2]; diff --git a/src/lib/krb5/krb/unparse.c b/src/lib/krb5/krb/unparse.c index f0e52dc..6f1a3c9 100644 --- a/src/lib/krb5/krb/unparse.c +++ b/src/lib/krb5/krb/unparse.c @@ -149,7 +149,8 @@ krb5_unparse_name_ext(krb5_context context, krb5_const_principal principal, regi *q++ = COMPONENT_SEP; } - q--; /* Back up last component separator */ + if (i > 0) + q--; /* Back up last component separator */ *q++ = REALM_SEP; cp = krb5_princ_realm(context, principal)->data; diff --git a/src/lib/krb5/krb/v4lifetime.c b/src/lib/krb5/krb/v4lifetime.c new file mode 100644 index 0000000..94bf5f6 --- /dev/null +++ b/src/lib/krb5/krb/v4lifetime.c @@ -0,0 +1,149 @@ +/* + * Copyright 2000, 2001, 2003 by the Massachusetts Institute of Technology. + * All Rights Reserved. + * + * Export of this software from the United States of America may + * require a specific license from the United States Government. + * It is the responsibility of any person or organization contemplating + * export to obtain such a license before exporting. + * + * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and + * distribute this software and its documentation for any purpose and + * without fee is hereby granted, provided that the above copyright + * notice appear in all copies and that both that copyright notice and + * this permission notice appear in supporting documentation, and that + * the name of M.I.T. not be used in advertising or publicity pertaining + * to distribution of the software without specific, written prior + * permission. Furthermore if you modify this software you must label + * your software as modified software and not distribute it in such a + * fashion that it might be confused with the original M.I.T. software. + * M.I.T. makes no representations about the suitability of + * this software for any purpose. It is provided "as is" without express + * or implied warranty. + * + */ + +#include "k5-int.h" + +/* + * Only lifetime bytes values less than 128 are on a linear scale. + * The following table contains an exponential scale that covers the + * lifetime values 128 to 191 inclusive (a total of 64 values). + * Values greater than 191 get interpreted the same as 191, but they + * will never be generated by the functions in this file. + * + * The ratio is approximately 1.069144898 (actually exactly + * exp(log(67.5)/63), where 67.5 = 2592000/38400, and 259200 = 30 + * days, and 38400 = 128*5 minutes. This allows a lifetime byte of + * 191 to correspond to a ticket life of exactly 30 days and a + * lifetime byte of 128 to correspond to exactly 128*5 minutes, with + * the other values spread on an exponential curve fit in between + * them. This table should correspond exactly to the set of extended + * ticket lifetime values used by AFS and CMU. + * + * The following awk script is sufficient to reproduce the table: + * BEGIN { + * r = exp(log(2592000/38400)/63); + * x = 38400; + * for (i=0;i<64;i++) { + * printf("%d\n",x+0.5); + * x *= r; + * } + * } + */ +#ifndef SHORT_LIFETIME +#define NLIFETIMES 64 +static const krb5_int32 lifetimes[NLIFETIMES] = { + 38400, 41055, /* 00:10:40:00, 00:11:24:15 */ + 43894, 46929, /* 00:12:11:34, 00:13:02:09 */ + 50174, 53643, /* 00:13:56:14, 00:14:54:03 */ + 57352, 61318, /* 00:15:55:52, 00:17:01:58 */ + 65558, 70091, /* 00:18:12:38, 00:19:28:11 */ + 74937, 80119, /* 00:20:48:57, 00:22:15:19 */ + 85658, 91581, /* 00:23:47:38, 01:01:26:21 */ + 97914, 104684, /* 01:03:11:54, 01:05:04:44 */ + 111922, 119661, /* 01:07:05:22, 01:09:14:21 */ + 127935, 136781, /* 01:11:32:15, 01:13:59:41 */ + 146239, 156350, /* 01:16:37:19, 01:19:25:50 */ + 167161, 178720, /* 01:22:26:01, 02:01:38:40 */ + 191077, 204289, /* 02:05:04:37, 02:08:44:49 */ + 218415, 233517, /* 02:12:40:15, 02:16:51:57 */ + 249664, 266926, /* 02:21:21:04, 03:02:08:46 */ + 285383, 305116, /* 03:07:16:23, 03:12:45:16 */ + 326213, 348769, /* 03:18:36:53, 04:00:52:49 */ + 372885, 398668, /* 04:07:34:45, 04:14:44:28 */ + 426234, 455705, /* 04:22:23:54, 05:06:35:05 */ + 487215, 520904, /* 05:15:20:15, 06:00:41:44 */ + 556921, 595430, /* 06:10:42:01, 06:21:23:50 */ + 636601, 680618, /* 07:08:50:01, 07:21:03:38 */ + 727680, 777995, /* 08:10:08:00, 09:00:06:35 */ + 831789, 889303, /* 09:15:03:09, 10:07:01:43 */ + 950794, 1016537, /* 11:00:06:34, 11:18:22:17 */ + 1086825, 1161973, /* 12:13:53:45, 13:10:46:13 */ + 1242318, 1328218, /* 14:09:05:18, 15:08:56:58 */ + 1420057, 1518247, /* 16:10:27:37, 17:13:44:07 */ + 1623226, 1735464, /* 18:18:53:46, 20:02:04:24 */ + 1855462, 1983758, /* 21:11:24:22, 22:23:02:38 */ + 2120925, 2267576, /* 24:13:08:45, 26:05:52:56 */ + 2424367, 2592000 /* 28:01:26:07, 30:00:00:00 */ +}; +#define MINFIXED 0x80 +#define MAXFIXED (MINFIXED + NLIFETIMES - 1) +#endif /* !SHORT_LIFETIME */ + +/* + * krb_life_to_time + * + * Given a start date and a lifetime byte, compute the expiration + * date. + */ +krb5_int32 +krb5int_krb_life_to_time(krb5_int32 start, int life) +{ + if (life < 0 || life > 255) /* possibly sign botch in caller */ + return start; +#ifndef SHORT_LIFETIME + if (life < MINFIXED) + return start + life * 5 * 60; + if (life > MAXFIXED) + return start + lifetimes[NLIFETIMES - 1]; + return start + lifetimes[life - MINFIXED]; +#else /* SHORT_LIFETIME */ + return start + life * 5 * 60; +#endif /* SHORT_LIFETIME */ +} + +/* + * krb_time_to_life + * + * Given the start date and the end date, compute the lifetime byte. + * Round up, since we can adjust the start date backwards if we are + * issuing the ticket to cause it to expire at the correct time. + */ +int +krb5int_krb_time_to_life(krb5_int32 start, krb5_int32 end) +{ + krb5_int32 dt; +#ifndef SHORT_LIFETIME + int i; +#endif + + dt = end - start; + if (dt <= 0) + return 0; +#ifndef SHORT_LIFETIME + if (dt < lifetimes[0]) + return (dt + 5 * 60 - 1) / (5 * 60); + /* This depends on the array being ordered. */ + for (i = 0; i < NLIFETIMES; i++) { + if (lifetimes[i] >= dt) + return i + MINFIXED; + } + return MAXFIXED; +#else /* SHORT_LIFETIME */ + if (dt > 5 * 60 * 255) + return 255; + else + return (dt + 5 * 60 - 1) / (5 * 60); +#endif /* SHORT_LIFETIME */ +} |