DB: Add user/group lookup by SID

2 files changed, 102 insertions, 4 deletions

diff --git a/src/db/sysdb.h b/src/db/sysdb.h
index c352f898..b9594664 100644
--- a/src/db/sysdb.h
+++ b/src/db/sysdb.h
@@ -144,10 +144,12 @@
 
 #define SYSDB_PWNAM_FILTER "(&("SYSDB_UC")(|("SYSDB_NAME_ALIAS"=%s)("SYSDB_NAME"=%s)))"
 #define SYSDB_PWUID_FILTER "(&("SYSDB_UC")("SYSDB_UIDNUM"=%lu))"
+#define SYSDB_PWSID_FILTER "(&("SYSDB_UC")("SYSDB_SID_STR"=%s))"
 #define SYSDB_PWENT_FILTER "("SYSDB_UC")"
 
 #define SYSDB_GRNAM_FILTER "(&("SYSDB_GC")(|("SYSDB_NAME_ALIAS"=%s)("SYSDB_NAME"=%s)))"
 #define SYSDB_GRGID_FILTER "(&("SYSDB_GC")("SYSDB_GIDNUM"=%lu))"
+#define SYSDB_GRSID_FILTER "(&("SYSDB_GC")("SYSDB_SID_STR"=%s))"
 #define SYSDB_GRENT_FILTER "("SYSDB_GC")"
 #define SYSDB_GRNAM_MPG_FILTER "(&("SYSDB_MPGC")(|("SYSDB_NAME_ALIAS"=%s)("SYSDB_NAME"=%s)))"
 #define SYSDB_GRGID_MPG_FILTER "(&("SYSDB_MPGC")("SYSDB_GIDNUM"=%lu))"
@@ -506,7 +508,7 @@ int sysdb_search_entry(TALLOC_CTX *mem_ctx,
                        size_t *msgs_count,
                        struct ldb_message ***msgs);
 
-/* Search User (by uid or name) */
+/* Search User (by uid, sid or name) */
 int sysdb_search_user_by_name(TALLOC_CTX *mem_ctx,
                               struct sysdb_ctx *sysdb,
                               struct sss_domain_info *domain,
@@ -521,7 +523,14 @@ int sysdb_search_user_by_uid(TALLOC_CTX *mem_ctx,
                              const char **attrs,
                              struct ldb_message **msg);
 
-/* Search Group (by gid or name) */
+int sysdb_search_user_by_sid_str(TALLOC_CTX *mem_ctx,
+                                 struct sysdb_ctx *sysdb,
+                                 struct sss_domain_info *domain,
+                                 const char *sid_str,
+                                 const char **attrs,
+                                 struct ldb_message **msg);
+
+/* Search Group (by gid, sid or name) */
 int sysdb_search_group_by_name(TALLOC_CTX *mem_ctx,
                                struct sysdb_ctx *sysdb,
                                struct sss_domain_info *domain,
@@ -536,6 +545,13 @@ int sysdb_search_group_by_gid(TALLOC_CTX *mem_ctx,
                               const char **attrs,
                               struct ldb_message **msg);
 
+int sysdb_search_group_by_sid_str(TALLOC_CTX *mem_ctx,
+                                  struct sysdb_ctx *sysdb,
+                                  struct sss_domain_info *domain,
+                                  const char *sid_str,
+                                  const char **attrs,
+                                  struct ldb_message **msg);
+
 /* Search Netgroup (by name) */
 int sysdb_search_netgroup_by_name(TALLOC_CTX *mem_ctx,
                                   struct sysdb_ctx *sysdb,
diff --git a/src/db/sysdb_ops.c b/src/db/sysdb_ops.c
index 75d86b58..a0730226 100644
--- a/src/db/sysdb_ops.c
+++ b/src/db/sysdb_ops.c
@@ -233,8 +233,64 @@ int sysdb_search_entry(TALLOC_CTX *mem_ctx,
     return EOK;
 }
 
+/* =Search-Entry-by-SID-string============================================ */
 
-/* =Search-User-by-[UID/NAME]============================================= */
+int sysdb_search_entry_by_sid_str(TALLOC_CTX *mem_ctx,
+                                  struct sysdb_ctx *sysdb,
+                                  struct sss_domain_info *domain,
+                                  const char *search_base,
+                                  const char *filter_str,
+                                  const char *sid_str,
+                                  const char **attrs,
+                                  struct ldb_message **msg)
+{
+    TALLOC_CTX *tmp_ctx;
+    const char *def_attrs[] = { SYSDB_NAME, SYSDB_SID_STR, NULL };
+    struct ldb_message **msgs = NULL;
+    struct ldb_dn *basedn;
+    size_t msgs_count = 0;
+    char *filter;
+    int ret;
+
+    tmp_ctx = talloc_new(NULL);
+    if (!tmp_ctx) {
+        return ENOMEM;
+    }
+
+    basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
+                            search_base, domain->name);
+    if (!basedn) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    filter = talloc_asprintf(tmp_ctx, filter_str, sid_str);
+    if (!filter) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_SUBTREE, filter,
+                             attrs?attrs:def_attrs, &msgs_count, &msgs);
+    if (ret) {
+        goto done;
+    }
+
+    *msg = talloc_steal(mem_ctx, msgs[0]);
+
+done:
+    if (ret == ENOENT) {
+        DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
+    }
+    else if (ret) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Error: %d (%s)\n", ret, strerror(ret)));
+    }
+
+    talloc_zfree(tmp_ctx);
+    return ret;
+}
+
+/* =Search-User-by-[UID/SID/NAME]============================================= */
 
 int sysdb_search_user_by_name(TALLOC_CTX *mem_ctx,
                               struct sysdb_ctx *sysdb,
@@ -352,8 +408,21 @@ done:
     return ret;
 }
 
+int sysdb_search_user_by_sid_str(TALLOC_CTX *mem_ctx,
+                                 struct sysdb_ctx *sysdb,
+                                 struct sss_domain_info *domain,
+                                 const char *sid_str,
+                                 const char **attrs,
+                                 struct ldb_message **msg)
+{
+
+   return sysdb_search_entry_by_sid_str(mem_ctx, sysdb, domain,
+                                        SYSDB_TMPL_USER_BASE,
+                                        SYSDB_PWSID_FILTER,
+                                        sid_str, attrs, msg);
+}
 
-/* =Search-Group-by-[GID/NAME]============================================ */
+/* =Search-Group-by-[GID/SID/NAME]============================================ */
 
 int sysdb_search_group_by_name(TALLOC_CTX *mem_ctx,
                                struct sysdb_ctx *sysdb,
@@ -456,6 +525,19 @@ done:
     return ret;
 }
 
+int sysdb_search_group_by_sid_str(TALLOC_CTX *mem_ctx,
+                                  struct sysdb_ctx *sysdb,
+                                  struct sss_domain_info *domain,
+                                  const char *sid_str,
+                                  const char **attrs,
+                                  struct ldb_message **msg)
+{
+
+   return sysdb_search_entry_by_sid_str(mem_ctx, sysdb, domain,
+                                        SYSDB_TMPL_GROUP_BASE,
+                                        SYSDB_GRSID_FILTER,
+                                        sid_str, attrs, msg);
+}
 
 /* =Search-Group-by-Name============================================ */