[X2Go-Commits] libpam-x2go.git - x2gosession (branch) updated: 626a5ed1cc6421c00f103fa769ac19f867e7ed1f
X2Go dev team
git-admin at x2go.org
Wed Apr 24 18:47:24 CEST 2013
The branch, x2gosession has been updated
discards 829831debae6d31f199056444739f90b0f9e996d (commit)
discards 6e7601e14089a79aec2accfa800c259049449b8e (commit)
discards 817ff829b60891959d4b947fbd79c7bd3e2e67dd (commit)
discards 645af42abcb4b3ac922705751d134d31d8959912 (commit)
discards edbe36fbccacebc2de6d15d0bfa3d480dd69a135 (commit)
discards 48df96792e41ff14f101fbb9829a059b0cdd3879 (commit)
via 626a5ed1cc6421c00f103fa769ac19f867e7ed1f (commit)
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- Log -----------------------------------------------------------------
-----------------------------------------------------------------------
Summary of changes:
src/pam-freerdp.c | 81 +++++++++++++++++++++--------------------------------
1 file changed, 32 insertions(+), 49 deletions(-)
The diff of changes is:
diff --git a/src/pam-freerdp.c b/src/pam-freerdp.c
index f234ca9..2261a20 100644
--- a/src/pam-freerdp.c
+++ b/src/pam-freerdp.c
@@ -23,7 +23,7 @@
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/socket.h>
-#include <sys/mman.h>
+#include <sys/stat.h>
#include <sys/un.h>
#include <pwd.h>
@@ -33,13 +33,6 @@
#define PAM_TYPE_DOMAIN 1234
-static char * global_domain = NULL;
-/* FIXME? This is a work around to the fact that PAM seems to be clearing
- the auth token between authorize and open_session. Which then requires
- us to save it. Seems like we're the wrong people to do it, but we have
- no choice */
-static char * global_password = NULL;
-
/* Either grab a value or prompt for it */
static char *
get_item (pam_handle_t * pamh, int type)
@@ -49,14 +42,7 @@ get_item (pam_handle_t * pamh, int type)
if (type != PAM_TYPE_DOMAIN) {
char * value = NULL;
if (pam_get_item(pamh, type, (const void **)&value) == PAM_SUCCESS && value != NULL) {
- return value;
- }
- if (type == PAM_AUTHTOK && global_password != NULL) {
- return global_password;
- }
- } else {
- if (global_domain != NULL) {
- return global_domain;
+ return strdup(value);
}
}
/* Now we need to prompt */
@@ -95,17 +81,17 @@ get_item (pam_handle_t * pamh, int type)
}
struct pam_response * responses = NULL;
- if (conv->conv(1, &pmessage, &responses, conv->appdata_ptr) != PAM_SUCCESS || responses == NULL) {
+ if (conv->conv(1, &pmessage, &responses, conv->appdata_ptr) != PAM_SUCCESS) {
return NULL;
}
- char * promptval = responses->resp;
+ char * retval = responses->resp;
free(responses);
if (type == PAM_RHOST) {
- char * subloc = strstr(promptval, "://");
+ char * subloc = strstr(retval, "://");
if (subloc != NULL) {
- char * original = promptval;
+ char * original = retval;
char * newish = subloc + strlen("://");
char * endslash = strstr(newish, "/");
@@ -113,38 +99,11 @@ get_item (pam_handle_t * pamh, int type)
endslash[0] = '\0';
}
- promptval = strdup(newish);
+ retval = strdup(newish);
free(original);
}
}
- char * retval = NULL;
- if (promptval != NULL) { /* Can't believe it really would be at this point, but let's be sure */
- if (type != PAM_TYPE_DOMAIN) {
- pam_set_item(pamh, type, (const void *)promptval);
- /* We're returning the value saved by PAM so we can clear promptval */
- pam_get_item(pamh, type, (const void **)&retval);
- } else {
- if (global_domain != NULL) {
- free(global_domain);
- }
- global_domain = strdup(promptval);
- retval = global_domain;
- }
- if (type == PAM_AUTHTOK) {
- if (global_password != NULL) {
- memset(global_password, 0, strlen(global_password));
- munlock(global_password, strlen(global_password));
- free(global_password);
- }
- global_password = strdup(promptval);
- mlock(global_password, strlen(global_password));
- retval = global_password;
- }
-
- free(promptval);
- }
-
return retval;
}
@@ -154,6 +113,9 @@ get_item (pam_handle_t * pamh, int type)
goto done; \
}
+/* TODO: Make this a build thing */
+#define XFREERDP "/usr/bin/xfreerdp"
+
/* Authenticate. We need to make sure we have a user account, that
there are remote accounts and then verify them with FreeRDP */
PAM_EXTERN int
@@ -233,8 +195,14 @@ pam_sm_authenticate (pam_handle_t *pamh, int flags, int argc, const char **argv)
}
}
- /* Return our status */
+ /* Free Memory and return our status */
done:
+ if (username != NULL) { free(username); }
+ if (password != NULL) { free(password); }
+ if (ruser != NULL) { free(ruser); }
+ if (rhost != NULL) { free(rhost); }
+ if (rdomain != NULL) { free(rdomain); }
+
return retval;
}
@@ -295,6 +263,15 @@ pam_sm_open_session (pam_handle_t *pamh, int flags, int argc, const char ** argv
goto done;
}
+ /* Set the socket file permissions to be 600 and the user and group
+ to be the guest user. NOTE: This won't protect on BSD */
+ if (chmod(socket_addr.sun_path, S_IRUSR | S_IWUSR) != 0 ||
+ chown(socket_addr.sun_path, pwdent->pw_uid, pwdent->pw_gid) != 0) {
+ close(socketfd);
+ retval = PAM_SYSTEM_ERR;
+ goto done;
+ }
+
/* Build this up as a buffer so we can just write it and see that
very, very clearly */
int buffer_len = 0;
@@ -348,6 +325,12 @@ pam_sm_open_session (pam_handle_t *pamh, int flags, int argc, const char ** argv
}
done:
+ if (username != NULL) { free(username); }
+ if (password != NULL) { free(password); }
+ if (ruser != NULL) { free(ruser); }
+ if (rhost != NULL) { free(rhost); }
+ if (rdomain != NULL) { free(rdomain); }
+
return retval;
}
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