Implement getgrgid()

4 files changed, 62 insertions, 2 deletions

diff --git a/server/nss/nss_ldb.h b/server/nss/nss_ldb.h
index 3dbe70d93..13e5a672a 100644
--- a/server/nss/nss_ldb.h
+++ b/server/nss/nss_ldb.h
@@ -11,7 +11,7 @@
 
 #define NSS_GRNAM_FILTER "(&(objectclass=group)(gid=%s))"
 #define NSS_GRNA2_FILTER "(&(objectclass=user)(memberof=%s))"
-#define NSS_GRUID_FILTER "(&(objectclass=group)(gidNumber=%llu))"
+#define NSS_GRGID_FILTER "(&(objectclass=group)(gidNumber=%llu))"
 #define NSS_GRENT_FILTER "(objectclass=group)"
 
 #define NSS_PW_ATTRS {NSS_PW_NAME, NSS_PW_UIDNUM, NSS_PW_GIDNUM, \
diff --git a/server/nss/nsssrv_cmd.c b/server/nss/nsssrv_cmd.c
index b8183e005..6252ab4a0 100644
--- a/server/nss/nsssrv_cmd.c
+++ b/server/nss/nsssrv_cmd.c
@@ -619,7 +619,7 @@ static int nss_cmd_getgrnam(struct cli_ctx *cctx)
     int ret;
     const char *name;
 
-    /* get user name to query */
+    /* get group name to query */
     nss_packet_get_body(cctx->creq->in, &body, &blen);
     name = (const char *)body;
     /* if not terminated fail */
@@ -639,6 +639,35 @@ static int nss_cmd_getgrnam(struct cli_ctx *cctx)
     return ret;
 }
 
+static int nss_cmd_getgrgid(struct cli_ctx *cctx)
+{
+    struct nss_cmd_ctx *nctx;
+    uint8_t *body;
+    size_t blen;
+    int ret;
+    uint64_t gid;
+
+    /* get gid to query */
+    nss_packet_get_body(cctx->creq->in, &body, &blen);
+
+    if (blen != sizeof(uint64_t)) {
+        return EINVAL;
+    }
+
+    gid = *((uint64_t *)body);
+
+    nctx = talloc(cctx, struct nss_cmd_ctx);
+    if (!nctx) {
+        return ENOMEM;
+    }
+    nctx->cctx = cctx;
+
+    ret = nss_ldb_getgrgid(nctx, cctx->ev, cctx->ldb, gid,
+                           nss_cmd_getgr_callback, nctx);
+
+    return ret;
+}
+
 struct nss_cmd_table nss_cmds[] = {
     {SSS_NSS_GET_VERSION, nss_cmd_get_version},
     {SSS_NSS_GETPWNAM, nss_cmd_getpwnam},
@@ -647,6 +676,7 @@ struct nss_cmd_table nss_cmds[] = {
     {SSS_NSS_GETPWENT, nss_cmd_getpwent},
     {SSS_NSS_ENDPWENT, nss_cmd_endpwent},
     {SSS_NSS_GETGRNAM, nss_cmd_getgrnam},
+    {SSS_NSS_GETGRGID, nss_cmd_getgrgid},
     {SSS_NSS_NULL, NULL}
 };
 
diff --git a/server/nss/nsssrv_ldb.c b/server/nss/nsssrv_ldb.c
index 04225e007..dce8d48bb 100644
--- a/server/nss/nsssrv_ldb.c
+++ b/server/nss/nsssrv_ldb.c
@@ -364,6 +364,30 @@ int nss_ldb_getgrnam(TALLOC_CTX *mem_ctx,
     return grp_search(sctx, ldb, expression);
 }
 
+int nss_ldb_getgrgid(TALLOC_CTX *mem_ctx,
+                     struct event_context *ev,
+                     struct ldb_context *ldb,
+                     uint64_t gid,
+                     nss_ldb_callback_t fn, void *ptr)
+{
+    struct nss_ldb_search_ctx *sctx;
+    unsigned long long int filter_gid = gid;
+    char *expression;
+
+    sctx = init_sctx(mem_ctx, ldb, fn, ptr);
+    if (!sctx) {
+        return ENOMEM;
+    }
+
+    expression = talloc_asprintf(sctx, NSS_GRGID_FILTER, filter_gid);
+    if (!expression) {
+        talloc_free(sctx);
+        return ENOMEM;
+    }
+
+    return grp_search(sctx, ldb, expression);
+}
+
 
 int nss_ldb_init(TALLOC_CTX *mem_ctx,
                  struct event_context *ev,
diff --git a/server/nss/nsssrv_ldb.h b/server/nss/nsssrv_ldb.h
index 9998714aa..ebb972550 100644
--- a/server/nss/nsssrv_ldb.h
+++ b/server/nss/nsssrv_ldb.h
@@ -39,3 +39,9 @@ int nss_ldb_getgrnam(TALLOC_CTX *mem_ctx,
                      const char *name,
                      nss_ldb_callback_t fn, void *ptr);
 
+int nss_ldb_getgrgid(TALLOC_CTX *mem_ctx,
+                     struct event_context *ev,
+                     struct ldb_context *ldb,
+                     uint64_t gid,
+                     nss_ldb_callback_t fn, void *ptr);
+