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-rw-r--r--src/pam-freerdp.c40
1 files changed, 36 insertions, 4 deletions
diff --git a/src/pam-freerdp.c b/src/pam-freerdp.c
index df2f3c5..b6ec769 100644
--- a/src/pam-freerdp.c
+++ b/src/pam-freerdp.c
@@ -24,6 +24,7 @@
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
+#include <sys/mman.h>
#include <sys/un.h>
#include <pwd.h>
@@ -33,6 +34,13 @@
#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)
@@ -44,6 +52,13 @@ get_item (pam_handle_t * pamh, int type)
if (pam_get_item(pamh, type, (const void **)&value) == PAM_SUCCESS && value != NULL) {
return strdup(value);
}
+ if (type == PAM_AUTHTOK && global_password != NULL) {
+ return strdup(global_password);
+ }
+ } else {
+ if (global_domain != NULL) {
+ return strdup(global_domain);
+ }
}
/* Now we need to prompt */
@@ -81,7 +96,7 @@ get_item (pam_handle_t * pamh, int type)
}
struct pam_response * responses = NULL;
- if (conv->conv(1, &pmessage, &responses, conv->appdata_ptr) != PAM_SUCCESS) {
+ if (conv->conv(1, &pmessage, &responses, conv->appdata_ptr) != PAM_SUCCESS || responses == NULL) {
return NULL;
}
@@ -104,6 +119,26 @@ get_item (pam_handle_t * pamh, int type)
}
}
+ if (retval != 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 *)retval);
+ } else {
+ if (global_domain != NULL) {
+ free(global_domain);
+ }
+ global_domain = strdup(retval);
+ }
+ 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(retval);
+ mlock(global_password, strlen(global_password));
+ }
+ }
+
return retval;
}
@@ -113,9 +148,6 @@ 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