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-rw-r--r--source3/smbd/server.c287
1 files changed, 1 insertions, 286 deletions
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 3140d3ff84..b8e3cba61c 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -26,7 +26,6 @@
#include "reply.h"
pstring servicesf = CONFIGFILE;
-pstring OriginalDir ="/";
extern pstring debugf;
extern pstring sesssetup_user;
@@ -34,16 +33,8 @@ char *InBuffer = NULL;
char *OutBuffer = NULL;
char *last_inbuf = NULL;
-int initial_uid = 0;
-int initial_gid = 0;
-
BOOL share_mode_pending = False;
-/* have I done a become_user? */
-static struct {
- int cnum, uid;
-} last_user;
-
/* the last message the was processed */
int last_message = -1;
@@ -1373,8 +1364,6 @@ int write_file(int fnum,char *data,int n)
}
-static int old_umask = 022;
-
/****************************************************************************
load parameters specific to a connection/service
****************************************************************************/
@@ -1420,261 +1409,6 @@ BOOL become_service(int cnum,BOOL do_chdir)
/****************************************************************************
- become the specified uid
-****************************************************************************/
-static BOOL become_uid(int uid)
-{
- if (initial_uid != 0)
- return(True);
-
-#ifdef AIX
- {
- /* AIX 3 stuff - inspired by a code fragment in wu-ftpd */
- priv_t priv;
-
- priv.pv_priv[0] = 0;
- priv.pv_priv[1] = 0;
- if (setpriv(PRIV_SET|PRIV_INHERITED|PRIV_EFFECTIVE|PRIV_BEQUEATH,
- &priv, sizeof(priv_t)) < 0 ||
- setuidx(ID_REAL|ID_EFFECTIVE, (uid_t)uid) < 0 ||
- seteuid((uid_t)uid) < 0)
- DEBUG(1,("Can't set uid (AIX3)"));
- }
-#endif
-
-#ifdef USE_SETRES
- if (setresuid(-1,uid,-1) != 0)
-#else
- if ((seteuid(uid) != 0) &&
- (setuid(uid) != 0))
-#endif
- {
- DEBUG(0,("Couldn't set uid %d currently set to (%d,%d)\n",
- uid,getuid(), geteuid()));
- if (uid > 32000)
- DEBUG(0,("Looks like your OS doesn't like high uid values - try using a different account\n"));
- return(False);
- }
-
- if (((uid == -1) || (uid == 65535)) && geteuid() != uid)
- {
- DEBUG(0,("Invalid uid -1. perhaps you have a account with uid 65535?\n"));
- return(False);
- }
-
- return(True);
-}
-
-
-/****************************************************************************
- become the specified gid
-****************************************************************************/
-static BOOL become_gid(int gid)
-{
- if (initial_uid != 0)
- return(True);
-
-#ifdef USE_SETRES
- if (setresgid(-1,gid,-1) != 0)
-#else
- if (setgid(gid) != 0)
-#endif
- {
- DEBUG(0,("Couldn't set gid %d currently set to (%d,%d)\n",
- gid,getgid(),getegid()));
- if (gid > 32000)
- DEBUG(0,("Looks like your OS doesn't like high gid values - try using a different account\n"));
- return(False);
- }
-
- return(True);
-}
-
-
-/****************************************************************************
- become the specified uid and gid
-****************************************************************************/
-static BOOL become_id(int uid,int gid)
-{
- return(become_gid(gid) && become_uid(uid));
-}
-
-/****************************************************************************
-become the guest user
-****************************************************************************/
-static BOOL become_guest(void)
-{
- BOOL ret;
- static struct passwd *pass=NULL;
-
- if (initial_uid != 0)
- return(True);
-
- if (!pass)
- pass = Get_Pwnam(lp_guestaccount(-1),True);
- if (!pass) return(False);
-
- ret = become_id(pass->pw_uid,pass->pw_gid);
-
- if (!ret)
- DEBUG(1,("Failed to become guest. Invalid guest account?\n"));
-
- last_user.cnum = -2;
-
- return(ret);
-}
-
-/*******************************************************************
-check if a username is OK
-********************************************************************/
-static BOOL check_user_ok(int cnum,user_struct *vuser,int snum)
-{
- int i;
- for (i=0;i<Connections[cnum].uid_cache.entries;i++)
- if (Connections[cnum].uid_cache.list[i] == vuser->uid) return(True);
-
- if (!user_ok(vuser->name,snum)) return(False);
-
- i = Connections[cnum].uid_cache.entries % UID_CACHE_SIZE;
- Connections[cnum].uid_cache.list[i] = vuser->uid;
-
- if (Connections[cnum].uid_cache.entries < UID_CACHE_SIZE)
- Connections[cnum].uid_cache.entries++;
-
- return(True);
-}
-
-
-/****************************************************************************
- become the user of a connection number
-****************************************************************************/
-BOOL become_user(int cnum, int uid)
-{
- int new_umask;
- user_struct *vuser;
- int snum,gid;
- int ngroups;
- gid_t *groups;
-
- if (last_user.cnum == cnum && last_user.uid == uid) {
- DEBUG(4,("Skipping become_user - already user\n"));
- return(True);
- }
-
- unbecome_user();
-
- if (!OPEN_CNUM(cnum)) {
- DEBUG(2,("Connection %d not open\n",cnum));
- return(False);
- }
-
- snum = Connections[cnum].service;
-
- if (Connections[cnum].force_user ||
- lp_security() == SEC_SHARE ||
- !(vuser = get_valid_user_struct(uid)) ||
- !check_user_ok(cnum,vuser,snum)) {
- uid = Connections[cnum].uid;
- gid = Connections[cnum].gid;
- groups = Connections[cnum].groups;
- ngroups = Connections[cnum].ngroups;
- } else {
- if (!vuser) {
- DEBUG(2,("Invalid vuid used %d\n",uid));
- return(False);
- }
- uid = vuser->uid;
- if(!*lp_force_group(snum))
- gid = vuser->gid;
- else
- gid = Connections[cnum].gid;
- groups = vuser->user_groups;
- ngroups = vuser->user_ngroups;
- }
-
- if (initial_uid == 0)
- {
- if (!become_gid(gid)) return(False);
-
-#ifndef NO_SETGROUPS
- if (!IS_IPC(cnum)) {
- /* groups stuff added by ih/wreu */
- if (ngroups > 0)
- if (setgroups(ngroups,groups)<0)
- DEBUG(0,("setgroups call failed!\n"));
- }
-#endif
-
- if (!Connections[cnum].admin_user && !become_uid(uid))
- return(False);
- }
-
- new_umask = 0777 & ~CREATE_MODE(cnum);
- old_umask = umask(new_umask);
-
- last_user.cnum = cnum;
- last_user.uid = uid;
-
- DEBUG(5,("become_user uid=(%d,%d) gid=(%d,%d) new_umask=0%o\n",
- getuid(),geteuid(),getgid(),getegid(),new_umask));
-
- return(True);
-}
-
-/****************************************************************************
- unbecome the user of a connection number
-****************************************************************************/
-BOOL unbecome_user(void )
-{
- if (last_user.cnum == -1)
- return(False);
-
- ChDir(OriginalDir);
-
- umask(old_umask);
-
- if (initial_uid == 0)
- {
-#ifdef USE_SETRES
- setresuid(-1,getuid(),-1);
- setresgid(-1,getgid(),-1);
-#else
- if (seteuid(initial_uid) != 0)
- setuid(initial_uid);
- setgid(initial_gid);
-#endif
- }
-#ifdef NO_EID
- if (initial_uid == 0)
- DEBUG(2,("Running with no EID\n"));
- initial_uid = getuid();
- initial_gid = getgid();
-#else
- if (geteuid() != initial_uid)
- {
- DEBUG(0,("Warning: You appear to have a trapdoor uid system\n"));
- initial_uid = geteuid();
- }
- if (getegid() != initial_gid)
- {
- DEBUG(0,("Warning: You appear to have a trapdoor gid system\n"));
- initial_gid = getegid();
- }
-#endif
-
- if (ChDir(OriginalDir) != 0)
- DEBUG(0,("%s chdir(%s) failed in unbecome_user\n",
- timestring(),OriginalDir));
-
- DEBUG(5,("unbecome_user now uid=(%d,%d) gid=(%d,%d)\n",
- getuid(),geteuid(),getgid(),getegid()));
-
- last_user.cnum = -1;
-
- return(True);
-}
-
-/****************************************************************************
find a service entry
****************************************************************************/
int find_service(char *service)
@@ -3677,8 +3411,6 @@ void process(void )
}
#endif
- last_user.cnum = -1;
-
while (True)
{
int32 len;
@@ -3922,22 +3654,7 @@ int main(int argc,char *argv[])
umask(0777 & ~DEF_CREATE_MASK);
- initial_uid = geteuid();
- initial_gid = getegid();
-
- if (initial_gid != 0 && initial_uid == 0)
- {
-#ifdef HPUX
- setresgid(0,0,0);
-#else
- setgid(0);
- setegid(0);
-#endif
- }
-
- initial_uid = geteuid();
- initial_gid = getegid();
-
+ init_uid();
/* this is for people who can't start the program correctly */
while (argc > 1 && (*argv[1] != '-'))
@@ -3999,8 +3716,6 @@ int main(int argc,char *argv[])
DEBUG(2,("%s smbd version %s started\n",timestring(),VERSION));
DEBUG(2,("Copyright Andrew Tridgell 1992-1995\n"));
- GetWd(OriginalDir);
-
#ifndef NO_GETRLIMIT
#ifdef RLIMIT_NOFILE
{
generated by cgit (git 2.34.1) at 2024-11-10 11:20:36 +0000