- (djm) Make privsep work with PAM (still experimental)

1 files changed, 29 insertions, 5 deletions

diff --git a/monitor.c b/monitor.c
index b66dc2a16..01adabe38 100644
--- a/monitor.c
+++ b/monitor.c
@@ -113,6 +113,10 @@ int mm_answer_rsa_response(int, Buffer *);
 int mm_answer_sesskey(int, Buffer *);
 int mm_answer_sessid(int, Buffer *);
 
+#ifdef USE_PAM
+int mm_answer_pam_start(int, Buffer *);
+#endif
+
 static Authctxt *authctxt;
 static BIGNUM *ssh1_challenge = NULL;   /* used for ssh1 rsa auth */
 
@@ -143,8 +147,9 @@ struct mon_table mon_dispatch_proto20[] = {
     {MONITOR_REQ_SIGN, MON_ONCE, mm_answer_sign},
     {MONITOR_REQ_PWNAM, MON_ONCE, mm_answer_pwnamallow},
     {MONITOR_REQ_AUTHSERV, MON_ONCE, mm_answer_authserv},
-#if !defined(USE_PAM)
     {MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword},
+#ifdef USE_PAM
+    {MONITOR_REQ_PAM_START, MON_ONCE, mm_answer_pam_start},
 #endif
 #ifdef BSD_AUTH
     {MONITOR_REQ_BSDAUTHQUERY, MON_ISAUTH, mm_answer_bsdauthquery},
@@ -172,9 +177,7 @@ struct mon_table mon_dispatch_proto15[] = {
     {MONITOR_REQ_PWNAM, MON_ONCE, mm_answer_pwnamallow},
     {MONITOR_REQ_SESSKEY, MON_ONCE, mm_answer_sesskey},
     {MONITOR_REQ_SESSID, MON_ONCE, mm_answer_sessid},
-#if !defined(USE_PAM)
     {MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword},
-#endif
     {MONITOR_REQ_RSAKEYALLOWED, MON_ISAUTH, mm_answer_rsa_keyallowed},
     {MONITOR_REQ_KEYALLOWED, MON_ISAUTH, mm_answer_keyallowed},
     {MONITOR_REQ_RSACHALLENGE, MON_ONCE, mm_answer_rsa_challenge},
@@ -260,6 +263,10 @@ monitor_child_preauth(struct monitor *monitor)
                         if (authctxt->pw->pw_uid == 0 &&
                             !auth_root_allowed(auth_method))
                                 authenticated = 0;
+#ifdef USE_PAM
+                        if (!do_pam_account(authctxt->pw->pw_name, NULL))
+                                authenticated = 0;
+#endif
                 }
 
                 if (ent->flags & MON_AUTHDECIDE) {
@@ -457,6 +464,9 @@ mm_answer_sign(int socket, Buffer *m)
         /* Turn on permissions for getpwnam */
         monitor_permit(mon_dispatch, MONITOR_REQ_PWNAM, 1);
 
+#ifdef USE_PAM
+        monitor_permit(mon_dispatch, MONITOR_REQ_PAM_START, 1);
+#endif
         return (0);
 }
 
@@ -537,7 +547,6 @@ mm_answer_authserv(int socket, Buffer *m)
         return (0);
 }
 
-#if !defined(USE_PAM)
 int
 mm_answer_authpassword(int socket, Buffer *m)
 {
@@ -566,7 +575,6 @@ mm_answer_authpassword(int socket, Buffer *m)
         /* Causes monitor loop to terminate if authenticated */
         return (authenticated);
 }
-#endif
 
 #ifdef BSD_AUTH
 int
@@ -673,6 +681,22 @@ mm_answer_skeyrespond(int socket, Buffer *m)
 }
 #endif
 
+#ifdef USE_PAM
+int
+mm_answer_pam_start(int socket, Buffer *m)
+{
+        char *user;
+        
+        user = buffer_get_string(m, NULL);
+
+        start_pam(user);
+
+        xfree(user);
+
+        return (0);
+}
+#endif
+
 static void
 mm_append_debug(Buffer *m)
 {