From d81e20653baa53c678b2c421d90b6351a7388a37 Mon Sep 17 00:00:00 2001 From: Jeremy Allison Date: Tue, 10 Jul 2012 16:56:20 -0700 Subject: [PATCH] Move set_thread_credentials_permanently() to set_thread_credentials() as we need to keep the saved set uid/gid otherwise there is an interaction with open[at]() and NO_ATIME returning EPERM. As this is meant for threaded code inside the process we don't need to do an irreverisble change anyway. Autobuild-User(master): Jeremy Allison Autobuild-Date(master): Wed Jul 11 03:54:00 CEST 2012 on sn-devel-104 --- source3/include/proto.h | 8 ++++---- source3/lib/util_sec.c | 24 ++++++++++++------------ 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/source3/include/proto.h b/source3/include/proto.h index 76259835184..95dded820df 100644 --- a/source3/include/proto.h +++ b/source3/include/proto.h @@ -549,10 +549,10 @@ void save_re_gid(void); void restore_re_gid(void); int set_re_uid(void); void become_user_permanently(uid_t uid, gid_t gid); -int set_thread_credentials_permanently(uid_t uid, - gid_t gid, - size_t setlen, - const gid_t *gidset); +int set_thread_credentials(uid_t uid, + gid_t gid, + size_t setlen, + const gid_t *gidset); bool is_setuid_root(void) ; /* The following definitions come from lib/util_sid.c */ diff --git a/source3/lib/util_sec.c b/source3/lib/util_sec.c index 36d2a2b2538..ac999e360d1 100644 --- a/source3/lib/util_sec.c +++ b/source3/lib/util_sec.c @@ -411,14 +411,14 @@ void become_user_permanently(uid_t uid, gid_t gid) } /********************************************************** - Function to set thread specific credentials in an - irreversible way. Must be thread-safe code. + Function to set thread specific credentials. Leave + saved-set uid/gid alone.Must be thread-safe code. **********************************************************/ -int set_thread_credentials_permanently(uid_t uid, - gid_t gid, - size_t setlen, - const gid_t *gidset) +int set_thread_credentials(uid_t uid, + gid_t gid, + size_t setlen, + const gid_t *gidset) { #if defined(USE_LINUX_THREAD_CREDENTIALS) /* @@ -433,22 +433,22 @@ int set_thread_credentials_permanently(uid_t uid, return -1; } /* Set our primary gid. */ - /* Set rg=gid, eg=gid, sg=gid */ - if (samba_setresgid(gid, gid, gid) != 0) { + /* Set rg=gid, eg=gid */ + if (samba_setresgid(gid, gid, -1) != 0) { return -1; } /* Set extra groups list. */ if (samba_setgroups(setlen, gidset) != 0) { return -1; } - /* Become the requested user. No way back after this. */ - /* Set ru=uid, eu=uid, su=uid */ - if (samba_setresuid(uid, uid, uid) != 0) { + /* Become the requested user. */ + /* Set ru=uid, eu=uid */ + if (samba_setresuid(uid, uid, -1) != 0) { return -1; } if (geteuid() != uid || getuid() != uid || getegid() != gid || getgid() != gid) { - smb_panic("set_thread_credentials_permanently failed\n"); + smb_panic("set_thread_credentials failed\n"); return -1; } return 0; -- 2.11.4.GIT