First working daemon that responds only to a getpwnam() request with fake data

1 files changed, 118 insertions, 0 deletions

diff --git a/server/nss/nsssrv_cmd.c b/server/nss/nsssrv_cmd.c
new file mode 100644
index 00000000..f66dc88c
--- /dev/null
+++ b/server/nss/nsssrv_cmd.c
@@ -0,0 +1,118 @@
+/*
+   SSSD
+
+   NSS Responder
+
+   Copyright (C) Simo Sorce <ssorce@redhat.com>	2008
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "util/util.h"
+#include "nss/nsssrv.h"
+
+struct nss_cmd_table {
+    enum sss_nss_command cmd;
+    int (*fn)(struct event_context *ev, struct cli_ctx *cctx);
+};
+
+static int nss_cmd_get_version(struct event_context *ev,
+                               struct cli_ctx *cctx)
+{
+    uint8_t *body;
+    size_t blen;
+    int ret;
+
+    /* create response packet */
+    ret = nss_packet_new(cctx->creq, sizeof(uint32_t),
+                         nss_get_cmd(cctx->creq->in),
+                         &cctx->creq->out);
+    if (ret != RES_SUCCESS) {
+        return ret;
+    }
+    nss_get_body(cctx->creq->out, &body, &blen);
+    ((uint32_t *)body)[0] = SSS_NSS_VERSION;
+
+    /* now that the packet is in place, unlock queue
+     * making the event writable */
+    EVENT_FD_WRITEABLE(cctx->cfde);
+
+    return RES_SUCCESS;
+}
+
+static int nss_cmd_getpwnam(struct event_context *ev,
+                            struct cli_ctx *cctx)
+{
+    uint8_t *body;
+    size_t blen;
+    int ret;
+    const char *name;
+
+    /* get user name to query */
+    nss_get_body(cctx->creq->in, &body, &blen);
+    name = (const char *)body;
+    /* if not terminated fail */
+    if (name[blen -1] != '\0') {
+        return RES_INVALID_DATA;
+    }
+
+    /* TODO: async search data and return */
+
+    /* fake data for now */
+
+    /* create response packet */
+    ret = nss_packet_new(cctx->creq, 4+4+(8+8+4+2+4+10+10),
+                         nss_get_cmd(cctx->creq->in),
+                         &cctx->creq->out);
+    if (ret != RES_SUCCESS) {
+        return ret;
+    }
+    nss_get_body(cctx->creq->out, &body, &blen);
+
+    ((uint32_t *)body)[0] = 1; /* 1 result */
+    ((uint32_t *)body)[1] = 0; /* reserved */
+    ((uint64_t *)body)[1] = 1234; /* first result uid */
+    ((uint64_t *)body)[2] = 1234; /* first result gid */
+
+    name = "foo\0x\0foo\0/home/foo\0/bin/bash\0";
+    memcpy(&body[24], name, (8+8+4+2+4+10+10));
+
+    /* now that the packet is in place, unlock queue
+     * making the event writable */
+    EVENT_FD_WRITEABLE(cctx->cfde);
+
+    return RES_SUCCESS;
+}
+
+struct nss_cmd_table nss_cmds[] = {
+    {SSS_NSS_GET_VERSION, nss_cmd_get_version},
+    {SSS_NSS_GETPWNAM, nss_cmd_getpwnam},
+    {SSS_NSS_NULL, NULL}
+};
+
+int nss_cmd_execute(struct event_context *ev, struct cli_ctx *cctx)
+{
+    enum sss_nss_command cmd;
+    int i;
+
+    cmd = nss_get_cmd(cctx->creq->in);
+
+    for (i = 0; nss_cmds[i].cmd != SSS_NSS_NULL; i++) {
+        if (cmd == nss_cmds[i].cmd) {
+            return nss_cmds[i].fn(ev, cctx);
+        }
+    }
+
+    return RES_INVALID_DATA;
+}