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authorSumit Bose <sbose@redhat.com>2010-02-08 11:53:43 +0100
committerStephen Gallagher <sgallagh@redhat.com>2010-02-10 08:46:49 -0500
commit9dc76c9405860004ebbaeb7da944e06e7767780d (patch)
treee7757a0f3635d3a5b1e00dd61e5ceae8a65c7f30 /server/responder/pam
parenta08160e2ad7358b87f8f5a20f52f76196a32f3a1 (diff)
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Make return values more specific during password change
- return PAM_AUTHTOK_ERR instead of PAM_SYSTEM_ERR if the password change operation fails - send a message to the user if the system is offline and the password cannot be changed
Diffstat (limited to 'server/responder/pam')
-rw-r--r--server/responder/pam/pamsrv_cmd.c86
1 files changed, 52 insertions, 34 deletions
diff --git a/server/responder/pam/pamsrv_cmd.c b/server/responder/pam/pamsrv_cmd.c
index 3172a97d..c204e0a8 100644
--- a/server/responder/pam/pamsrv_cmd.c
+++ b/server/responder/pam/pamsrv_cmd.c
@@ -484,50 +484,68 @@ static void pam_reply(struct pam_auth_req *preq)
struct tevent_req *req;
struct sysdb_ctx *sysdb;
struct pam_ctx *pctx;
+ uint32_t user_info_type;
pd = preq->pd;
DEBUG(4, ("pam_reply get called.\n"));
- if ((pd->cmd == SSS_PAM_AUTHENTICATE) &&
- (preq->domain != NULL) &&
- (preq->domain->cache_credentials == true) &&
- (pd->offline_auth == false)) {
+ if (pd->pam_status == PAM_AUTHINFO_UNAVAIL) {
+ switch(pd->cmd) {
+ case SSS_PAM_AUTHENTICATE:
+ if ((preq->domain != NULL) &&
+ (preq->domain->cache_credentials == true) &&
+ (pd->offline_auth == false)) {
- if (pd->pam_status == PAM_AUTHINFO_UNAVAIL) {
- /* do auth with offline credentials */
- pd->offline_auth = true;
+ /* do auth with offline credentials */
+ pd->offline_auth = true;
- ret = sysdb_get_ctx_from_list(preq->cctx->rctx->db_list,
- preq->domain, &sysdb);
- if (ret != EOK) {
- DEBUG(0, ("Fatal: Sysdb CTX not found for this domain!\n"));
- goto done;
- }
-
- pctx = talloc_get_type(preq->cctx->rctx->pvt_ctx, struct pam_ctx);
-
- req = sysdb_cache_auth_send(preq, preq->cctx->ev, sysdb,
- preq->domain, pd->user, pd->authtok,
- pd->authtok_size, pctx->rctx->cdb);
- if (req == NULL) {
- DEBUG(1, ("Failed to setup offline auth"));
- /* this error is not fatal, continue */
- } else {
- tevent_req_set_callback(req, pam_cache_auth_done, preq);
- return;
- }
- }
- }
+ ret = sysdb_get_ctx_from_list(preq->cctx->rctx->db_list,
+ preq->domain, &sysdb);
+ if (ret != EOK) {
+ DEBUG(0, ("Fatal: Sysdb CTX not found for "
+ "domain [%s]!\n", preq->domain->name));
+ goto done;
+ }
+ pctx = talloc_get_type(preq->cctx->rctx->pvt_ctx,
+ struct pam_ctx);
+
+ req = sysdb_cache_auth_send(preq, preq->cctx->ev, sysdb,
+ preq->domain, pd->user,
+ pd->authtok, pd->authtok_size,
+ pctx->rctx->cdb);
+ if (req == NULL) {
+ DEBUG(1, ("Failed to setup offline auth.\n"));
+ /* this error is not fatal, continue */
+ } else {
+ tevent_req_set_callback(req, pam_cache_auth_done, preq);
+ return;
+ }
+ }
+ break;
+ case SSS_PAM_CHAUTHTOK_PRELIM:
+ case SSS_PAM_CHAUTHTOK:
+ DEBUG(5, ("Password change not possible while offline.\n"));
+ pd->pam_status = PAM_AUTHTOK_ERR;
+ user_info_type = SSS_PAM_USER_INFO_OFFLINE_CHPASS;
+ pam_add_response(pd, SSS_PAM_USER_INFO, sizeof(uint32_t),
+ (const uint8_t *) &user_info_type);
+ break;
/* TODO: we need the pam session cookie here to make sure that cached
* authentication was successful */
- if ((pd->cmd == SSS_PAM_SETCRED || pd->cmd == SSS_PAM_ACCT_MGMT ||
- pd->cmd == SSS_PAM_OPEN_SESSION || pd->cmd == SSS_PAM_CLOSE_SESSION) &&
- pd->pam_status == PAM_AUTHINFO_UNAVAIL) {
- DEBUG(2, ("Assuming offline authentication "
- "setting status for pam call %d to PAM_SUCCESS.\n", pd->cmd));
- pd->pam_status = PAM_SUCCESS;
+ case SSS_PAM_SETCRED:
+ case SSS_PAM_ACCT_MGMT:
+ case SSS_PAM_OPEN_SESSION:
+ case SSS_PAM_CLOSE_SESSION:
+ DEBUG(2, ("Assuming offline authentication setting status for "
+ "pam call %d to PAM_SUCCESS.\n", pd->cmd));
+ pd->pam_status = PAM_SUCCESS;
+ break;
+ default:
+ DEBUG(1, ("Unknown PAM call [%d].\n", pd->cmd));
+ pd->pam_status = PAM_MODULE_UNKNOWN;
+ }
}
cctx = preq->cctx;