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author | Stacey Son <sson@FreeBSD.org> | 2023-08-13 10:41:40 +0200 |
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committer | Warner Losh <imp@bsdimp.com> | 2023-08-28 12:16:18 -0600 |
commit | 191fe50d5dc8f26e0049d62e92d192d410520fab (patch) | |
tree | 6a253c8cfff21458467c1a6b218fc07d8d5ddab6 /bsd-user | |
parent | db8ee08f0a88ae04ee6b684690a3d53f862e7ea3 (diff) | |
download | qemu-191fe50d5dc8f26e0049d62e92d192d410520fab.zip qemu-191fe50d5dc8f26e0049d62e92d192d410520fab.tar.gz qemu-191fe50d5dc8f26e0049d62e92d192d410520fab.tar.bz2 |
bsd-user: Implement statfs related syscalls
Implement the following syscalls:
statfs(2)
fstatfs(2)
getfsstat(2)
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Diffstat (limited to 'bsd-user')
-rw-r--r-- | bsd-user/freebsd/os-stat.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h index 935663c..9492c93 100644 --- a/bsd-user/freebsd/os-stat.h +++ b/bsd-user/freebsd/os-stat.h @@ -210,4 +210,73 @@ static inline abi_long do_freebsd_fhstatfs(abi_ulong target_fhp_addr, return h2t_freebsd_statfs(target_stfs_addr, &host_stfs); } +/* statfs(2) */ +static inline abi_long do_freebsd_statfs(abi_long arg1, abi_long arg2) +{ + abi_long ret; + void *p; + struct statfs host_stfs; + + LOCK_PATH(p, arg1); + ret = get_errno(statfs(path(p), &host_stfs)); + UNLOCK_PATH(p, arg1); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(arg2, &host_stfs); +} + +/* fstatfs(2) */ +static inline abi_long do_freebsd_fstatfs(abi_long fd, abi_ulong target_addr) +{ + abi_long ret; + struct statfs host_stfs; + + ret = get_errno(fstatfs(fd, &host_stfs)); + if (is_error(ret)) { + return ret; + } + + return h2t_freebsd_statfs(target_addr, &host_stfs); +} + +/* getfsstat(2) */ +static inline abi_long do_freebsd_getfsstat(abi_ulong target_addr, + abi_long bufsize, abi_long flags) +{ + abi_long ret; + struct statfs *host_stfs; + int count; + long host_bufsize; + + count = bufsize / sizeof(struct target_statfs); + + /* if user buffer is NULL then return number of mounted FS's */ + if (target_addr == 0 || count == 0) { + return get_errno(freebsd11_getfsstat(NULL, 0, flags)); + } + + /* XXX check count to be reasonable */ + host_bufsize = sizeof(struct statfs) * count; + host_stfs = alloca(host_bufsize); + if (!host_stfs) { + return -TARGET_EINVAL; + } + + ret = count = get_errno(getfsstat(host_stfs, host_bufsize, flags)); + if (is_error(ret)) { + return ret; + } + + while (count--) { + if (h2t_freebsd_statfs((target_addr + + (count * sizeof(struct target_statfs))), + &host_stfs[count])) { + return -TARGET_EFAULT; + } + } + return ret; +} + #endif /* BSD_USER_FREEBSD_OS_STAT_H */ |