diff options
Diffstat (limited to 'src/lib/krb5/krb/sendauth.c')
| -rw-r--r-- | src/lib/krb5/krb/sendauth.c | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/src/lib/krb5/krb/sendauth.c b/src/lib/krb5/krb/sendauth.c index 4e7c3a7..24d8a8e 100644 --- a/src/lib/krb5/krb/sendauth.c +++ b/src/lib/krb5/krb/sendauth.c @@ -30,7 +30,6 @@ #define NEED_SOCKETS #include "k5-int.h" -#include "com_err.h" #include "auth_con.h" #include <errno.h> #include <stdio.h> @@ -119,7 +118,7 @@ krb5_sendauth(context, auth_context, if (!in_creds || !in_creds->ticket.length) { if (ccache) use_ccache = ccache; - else if ((retval = krb5_cc_default(context, &use_ccache))) + else if ((retval = krb5int_cc_default(context, &use_ccache))) goto error_return; } if (!in_creds) { @@ -152,9 +151,32 @@ krb5_sendauth(context, auth_context, credsp = in_creds; } - if ((retval = krb5_mk_req_extended(context, auth_context, ap_req_options, - in_data, credsp, &outbuf))) - goto error_return; + if (ap_req_options & AP_OPTS_USE_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. */ + char rnd_data[1024]; + size_t len; + krb5_data d; + d.length = sizeof (rnd_data); + d.data = rnd_data; + len = sizeof (rnd_data); + if (getpeername (*(int*)fd, (struct sockaddr *) rnd_data, &len) == 0) { + d.length = len; + (void) krb5_c_random_seed (context, &d); + } + len = sizeof (rnd_data); + if (getsockname (*(int*)fd, (struct sockaddr *) rnd_data, &len) == 0) { + d.length = len; + (void) krb5_c_random_seed (context, &d); + } + } + + if ((retval = krb5_mk_req_extended(context, auth_context, + ap_req_options, in_data, credsp, + &outbuf))) + goto error_return; /* * First write the length of the AP_REQ message, then write |