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authorSimo Sorce <ssorce@redhat.com>2010-03-14 18:31:56 -0400
committerStephen Gallagher <sgallagh@redhat.com>2010-04-12 09:22:15 -0400
commita298e5b4050a69238593017ccc774336eb332e16 (patch)
tree0cd8c51c177ac44a78926e2aec20f5096dda3a8f /src/responder
parent7ffaa2afb9e03a6f0b9c602c0f03b2074ea33eac (diff)
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sysdb: convert sysdb_getpwuid
Diffstat (limited to 'src/responder')
-rw-r--r--src/responder/nss/nsssrv_cmd.c305
1 files changed, 107 insertions, 198 deletions
diff --git a/src/responder/nss/nsssrv_cmd.c b/src/responder/nss/nsssrv_cmd.c
index d25c467a..c74969d1 100644
--- a/src/responder/nss/nsssrv_cmd.c
+++ b/src/responder/nss/nsssrv_cmd.c
@@ -711,143 +711,108 @@ done:
static void nss_cmd_getpwuid_dp_callback(uint16_t err_maj, uint32_t err_min,
const char *err_msg, void *ptr);
-static void nss_cmd_getpwuid_callback(void *ptr, int status,
- struct ldb_result *res)
+/* search for a uid.
+ * Returns:
+ * ENOENT, if uid is definitely not found
+ * EAGAIN, if uid is beeing fetched from backend via async operations
+ * EOK, if found
+ * anything else on a fatal error
+ */
+
+static int nss_cmd_getpwuid_search(struct nss_dom_ctx *dctx)
{
- struct nss_dom_ctx *dctx = talloc_get_type(ptr, struct nss_dom_ctx);
struct nss_cmd_ctx *cmdctx = dctx->cmdctx;
+ struct sss_domain_info *dom = dctx->domain;
struct cli_ctx *cctx = cmdctx->cctx;
- struct sss_domain_info *dom;
struct sysdb_ctx *sysdb;
struct nss_ctx *nctx;
- uint8_t *body;
- size_t blen;
- bool neghit = false;
int ret;
- int ncret;
nctx = talloc_get_type(cctx->rctx->pvt_ctx, struct nss_ctx);
- if (status != LDB_SUCCESS) {
- ret = nss_cmd_send_error(cmdctx, status);
- if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
+ while (dom) {
+
+ /* check that the uid is valid for this domain */
+ if ((dom->id_min && (cmdctx->id < dom->id_min)) ||
+ (dom->id_max && (cmdctx->id > dom->id_max))) {
+ DEBUG(4, ("Uid [%lu] does not exist in domain [%s]! "
+ "(id out of range)\n",
+ (unsigned long)cmdctx->id, dom->name));
+ if (cmdctx->check_next) {
+ dom = dom->next;
+ continue;
+ }
+ return ENOENT;
}
- sss_cmd_done(cctx, cmdctx);
- return;
- }
- if (dctx->check_provider) {
- ret = check_cache(dctx, nctx, res,
- SSS_DP_USER, NULL, cmdctx->id,
- nss_cmd_getpwuid_dp_callback);
- if (ret != EOK) {
- /* Anything but EOK means we should reenter the mainloop
- * because we may be refreshing the cache
- */
- return;
+ if (dom != dctx->domain) {
+ /* make sure we reset the check_provider flag when we check
+ * a new domain */
+ dctx->check_provider = NEED_CHECK_PROVIDER(dom->provider);
}
- }
- switch (res->count) {
- case 0:
- if (cmdctx->check_next) {
+ /* make sure to update the dctx if we changed domain */
+ dctx->domain = dom;
- ret = EOK;
+ DEBUG(4, ("Requesting info for [%d@%s]\n", cmdctx->id, dom->name));
- dom = dctx->domain->next;
- ncret = nss_ncache_check_uid(nctx->ncache, nctx->neg_timeout,
- cmdctx->id);
- if (ncret == EEXIST) {
- DEBUG(3, ("Uid [%lu] does not exist! (negative cache)\n",
- (unsigned long)cmdctx->id));
- ret = ENOENT;
- }
- if (dom == NULL) {
- DEBUG(0, ("No matching domain found for [%lu], fail!\n",
- (unsigned long)cmdctx->id));
- ret = ENOENT;
- }
+ ret = sysdb_get_ctx_from_list(cctx->rctx->db_list, dom, &sysdb);
+ if (ret != EOK) {
+ DEBUG(0, ("Fatal: Sysdb CTX not found for this domain!\n"));
+ return EIO;
+ }
- if (ret == EOK) {
- dctx->domain = dom;
- dctx->check_provider = NEED_CHECK_PROVIDER(dctx->domain->provider);
- if (dctx->res) talloc_free(res);
- dctx->res = NULL;
+ ret = sysdb_getpwuid(cmdctx, sysdb, dom, cmdctx->id, &dctx->res);
+ if (ret != EOK) {
+ DEBUG(1, ("Failed to make request to our cache!\n"));
+ return EIO;
+ }
- DEBUG(4, ("Requesting info for [%s@%s]\n",
- cmdctx->name, dctx->domain->name));
+ if (dctx->res->count > 1) {
+ DEBUG(0, ("getpwuid call returned more than one result !?!\n"));
+ return ENOENT;
+ }
- ret = sysdb_get_ctx_from_list(cctx->rctx->db_list,
- dctx->domain, &sysdb);
- if (ret != EOK) {
- DEBUG(0, ("Fatal: Sysdb CTX not found for this domain!\n"));
- NSS_CMD_FATAL_ERROR(cctx);
- }
- ret = sysdb_getpwuid(cmdctx, sysdb,
- dctx->domain, cmdctx->id,
- nss_cmd_getpwuid_callback, dctx);
- if (ret != EOK) {
- DEBUG(1, ("Failed to make request to our cache!\n"));
- }
+ if (dctx->res->count == 0 && !dctx->check_provider) {
+ /* if a multidomain search, try with next */
+ if (cmdctx->check_next) {
+ dom = dom->next;
+ continue;
}
- /* we made another call, end here */
- if (ret == EOK) return;
- }
-
- DEBUG(2, ("No results for getpwuid call\n"));
+ DEBUG(2, ("No results for getpwuid call\n"));
- /* set negative cache only if not result of cache check */
- if (!neghit) {
+ /* set negative cache only if not result of cache check */
ret = nss_ncache_set_uid(nctx->ncache, false, cmdctx->id);
if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
+ return ret;
}
- }
-
- ret = sss_packet_new(cctx->creq, 2*sizeof(uint32_t),
- sss_packet_get_cmd(cctx->creq->in),
- &cctx->creq->out);
- if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
- }
- sss_packet_get_body(cctx->creq->out, &body, &blen);
- ((uint32_t *)body)[0] = 0; /* 0 results */
- ((uint32_t *)body)[1] = 0; /* reserved */
- break;
-
- case 1:
- DEBUG(6, ("Returning info for user [%u]\n", (unsigned)cmdctx->id));
- /* create response packet */
- ret = sss_packet_new(cctx->creq, 0,
- sss_packet_get_cmd(cctx->creq->in),
- &cctx->creq->out);
- if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
+ return ENOENT;
}
- ret = fill_pwent(cctx->creq->out,
- dctx->domain,
- nctx, true,
- res->msgs, res->count);
- if (ret == ENOENT) {
- ret = fill_empty(cctx->creq->out);
+ /* if this is a caching provider (or if we haven't checked the cache
+ * yet) then verify that the cache is uptodate */
+ if (dctx->check_provider) {
+ ret = check_cache(dctx, nctx, dctx->res,
+ SSS_DP_USER, NULL, cmdctx->id,
+ nss_cmd_getpwuid_dp_callback);
+ if (ret != EOK) {
+ /* Anything but EOK means we should reenter the mainloop
+ * because we may be refreshing the cache
+ */
+ return ret;
+ }
}
- sss_packet_set_error(cctx->creq->out, ret);
- break;
+ /* One result found */
+ DEBUG(6, ("Returning info for uid [%d@%s]\n", cmdctx->id, dom->name));
- default:
- DEBUG(1, ("getpwnam call returned more than one result !?!\n"));
- ret = nss_cmd_send_error(cmdctx, ENOENT);
- if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
- }
+ return EOK;
}
- sss_cmd_done(cctx, cmdctx);
+ DEBUG(2, ("No matching domain found for [%d], fail!\n", cmdctx->id));
+ return ENOENT;
}
static void nss_cmd_getpwuid_dp_callback(uint16_t err_maj, uint32_t err_min,
@@ -856,7 +821,6 @@ static void nss_cmd_getpwuid_dp_callback(uint16_t err_maj, uint32_t err_min,
struct nss_dom_ctx *dctx = talloc_get_type(ptr, struct nss_dom_ctx);
struct nss_cmd_ctx *cmdctx = dctx->cmdctx;
struct cli_ctx *cctx = cmdctx->cctx;
- struct sysdb_ctx *sysdb;
int ret;
if (err_maj) {
@@ -865,38 +829,33 @@ static void nss_cmd_getpwuid_dp_callback(uint16_t err_maj, uint32_t err_min,
"Will try to return what we have in cache\n",
(unsigned int)err_maj, (unsigned int)err_min, err_msg));
- if (!dctx->res) {
- /* return 0 results */
- dctx->res = talloc_zero(dctx, struct ldb_result);
- if (!dctx->res) {
- ret = ENOMEM;
- goto done;
- }
+ if (dctx->res && dctx->res->count == 1) {
+ ret = nss_cmd_getpw_send_reply(dctx, true);
+ goto done;
}
- nss_cmd_getpwuid_callback(dctx, LDB_SUCCESS, dctx->res);
- return;
+ /* no previous results, just loop to next domain if possible */
+ if (dctx->domain->next && cmdctx->check_next) {
+ dctx->domain = dctx->domain->next;
+ dctx->check_provider = NEED_CHECK_PROVIDER(dctx->domain->provider);
+ } else {
+ /* nothing vailable */
+ ret = ENOENT;
+ goto done;
+ }
}
- ret = sysdb_get_ctx_from_list(cctx->rctx->db_list,
- dctx->domain, &sysdb);
- if (ret != EOK) {
- DEBUG(0, ("Fatal: Sysdb CTX not found for this domain!\n"));
- NSS_CMD_FATAL_ERROR(cctx);
+ /* ok the backend returned, search to see if we have updated results */
+ ret = nss_cmd_getpwuid_search(dctx);
+ if (ret == EOK) {
+ /* we have results to return */
+ ret = nss_cmd_getpw_send_reply(dctx, true);
}
- ret = sysdb_getpwuid(cmdctx, sysdb,
- dctx->domain, cmdctx->id,
- nss_cmd_getpwuid_callback, dctx);
done:
- if (ret != EOK) {
- DEBUG(1, ("Failed to make request to our cache!\n"));
-
- ret = nss_cmd_send_error(cmdctx, ret);
- if (ret != EOK) {
- NSS_CMD_FATAL_ERROR(cctx);
- }
- sss_cmd_done(cctx, cmdctx);
+ ret = nss_cmd_done(cmdctx, ret);
+ if (ret) {
+ NSS_CMD_FATAL_ERROR(cctx);
}
}
@@ -904,15 +863,11 @@ static int nss_cmd_getpwuid(struct cli_ctx *cctx)
{
struct nss_cmd_ctx *cmdctx;
struct nss_dom_ctx *dctx;
- struct sss_domain_info *dom;
- struct sysdb_ctx *sysdb;
struct nss_ctx *nctx;
uint8_t *body;
size_t blen;
int ret;
- int ncret;
- ret = ENOENT;
nctx = talloc_get_type(cctx->rctx->pvt_ctx, struct nss_ctx);
cmdctx = talloc_zero(cctx, struct nss_cmd_ctx);
@@ -937,75 +892,29 @@ static int nss_cmd_getpwuid(struct cli_ctx *cctx)
}
cmdctx->id = *((uint32_t *)body);
- /* this is a multidomain search */
- cmdctx->check_next = true;
-
- for (dom = cctx->rctx->domains; dom; dom = dom->next) {
- /* verify this user has not yet been negatively cached,
- * or has been permanently filtered */
- ncret = nss_ncache_check_uid(nctx->ncache, nctx->neg_timeout,
- cmdctx->id);
- if (ncret == EEXIST) {
- DEBUG(3, ("Uid [%lu] does not exist! (negative cache)\n",
- (unsigned long)cmdctx->id));
- continue;
- }
-
- /* check that the uid is valid for this domain */
- if ((dom->id_min && (cmdctx->id < dom->id_min)) ||
- (dom->id_max && (cmdctx->id > dom->id_max))) {
- DEBUG(4, ("Uid [%lu] does not exist in domain [%s]! "
- "(id out of range)\n",
- (unsigned long)cmdctx->id, dom->name));
- continue;
- }
-
- dctx->domain = dom;
- dctx->check_provider = NEED_CHECK_PROVIDER(dctx->domain->provider);
+ ret = nss_ncache_check_uid(nctx->ncache, nctx->neg_timeout, cmdctx->id);
+ if (ret == EEXIST) {
+ DEBUG(3, ("Uid [%lu] does not exist! (negative cache)\n",
+ (unsigned long)cmdctx->id));
+ ret = ENOENT;
+ goto done;
+ }
- DEBUG(4, ("Requesting info for [%lu@%s]\n",
- cmdctx->id, dctx->domain->name));
+ /* uid searches are always multidomain */
+ dctx->domain = cctx->rctx->domains;
+ cmdctx->check_next = true;
- ret = sysdb_get_ctx_from_list(cctx->rctx->db_list,
- dctx->domain, &sysdb);
- if (ret != EOK) {
- DEBUG(0, ("Fatal: Sysdb CTX not found for this domain!\n"));
- ret = EFAULT;
- goto done;
- }
- ret = sysdb_getpwuid(cmdctx, sysdb,
- dctx->domain, cmdctx->id,
- nss_cmd_getpwuid_callback, dctx);
- if (ret != EOK) {
- DEBUG(1, ("Failed to make request to our cache!\n"));
- }
+ dctx->check_provider = NEED_CHECK_PROVIDER(dctx->domain->provider);
- break;
+ /* ok, find it ! */
+ ret = nss_cmd_getpwuid_search(dctx);
+ if (ret == EOK) {
+ /* we have results to return */
+ ret = nss_cmd_getpw_send_reply(dctx, true);
}
done:
- if (ret != EOK) {
- if (ret == ENOENT) {
- /* we do not have any entry to return */
- ret = sss_packet_new(cctx->creq, 2*sizeof(uint32_t),
- sss_packet_get_cmd(cctx->creq->in),
- &cctx->creq->out);
- if (ret == EOK) {
- sss_packet_get_body(cctx->creq->out, &body, &blen);
- ((uint32_t *)body)[0] = 0; /* 0 results */
- ((uint32_t *)body)[1] = 0; /* reserved */
- }
- }
- if (ret != EOK) {
- ret = nss_cmd_send_error(cmdctx, ret);
- }
- if (ret == EOK) {
- sss_cmd_done(cctx, cmdctx);
- }
- return ret;
- }
-
- return EOK;
+ return nss_cmd_done(cmdctx, ret);
}
/* to keep it simple at this stage we are retrieving the