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s3:winbind: Do not start if the priviliged socket path is too long

Browse Source 
https://bugzilla.samba.org/show_bug.cgi?id=14792

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Andreas Schneider 2021-08-11 12:07:57 +02:00 committed by Jeremy Allison
parent 8858cf72af
commit 45f6bf1824
1 changed files with 28 additions and 0 deletions
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28
source3/winbindd/winbindd.c
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@ -1659,6 +1659,8 @@ int main(int argc, const char **argv)
const struct dcesrv_endpoint_server *ep_server = NULL;
struct dcesrv_context *dce_ctx = NULL;
size_t winbindd_socket_dir_len = 0;
char *winbindd_priv_socket_dir = NULL;
size_t winbindd_priv_socket_dir_len = 0;
setproctitle_init(argc, discard_const(argv), environ);
@ -1835,6 +1837,32 @@ int main(int argc, const char **argv)
exit(1);
}
winbindd_priv_socket_dir = get_winbind_priv_pipe_dir();
winbindd_priv_socket_dir_len = strlen(winbindd_priv_socket_dir);
if (winbindd_priv_socket_dir_len > 0) {
size_t winbindd_priv_socket_len =
winbindd_priv_socket_dir_len + 1 +
strlen(WINBINDD_SOCKET_NAME);
struct sockaddr_un un = {
.sun_family = AF_UNIX,
};
size_t sun_path_len = sizeof(un.sun_path);
if (winbindd_priv_socket_len >= sun_path_len) {
DBG_ERR("The winbind priviliged socket path [%s/%s] is too long "
"(%zu >= %zu)\n",
winbindd_priv_socket_dir,
WINBINDD_SOCKET_NAME,
winbindd_priv_socket_len,
sun_path_len);
exit(1);
}
} else {
DBG_ERR("'winbindd_priv_socket_directory' parameter is empty\n");
exit(1);
}
TALLOC_FREE(winbindd_priv_socket_dir);
if (!cluster_probe_ok()) {
exit(1);
}