From: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
Add functions to map a uid and gid to a SID. These functions are
similar to SID to uid and gid mapping functions.
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@xxxxxxxxx>
---
cifs.idmap.c | 37 +++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/cifs.idmap.c b/cifs.idmap.c
index 56edb58..80802d7 100644
--- a/cifs.idmap.c
+++ b/cifs.idmap.c
@@ -134,6 +134,43 @@ cifs_idmap(const key_serial_t key, const char *key_descr)
goto cifs_idmap_ret;
}
+ sidstr = strget(key_descr, "oi:");
+ if (sidstr) {
+ uid = atoi(sidstr);
+ syslog(LOG_DEBUG, "SID: %s, uid: %d", sidstr, uid);
+ rc = wbcUidToSid(uid, &sid);
+ if (rc)
+ syslog(LOG_DEBUG, "uid %d to SID error: %d", uid, rc);
+ if (!rc) { /* SID has been mapped to a uid */
+ rc = keyctl_instantiate(key, &sid,
+ sizeof(struct wbcDomainSid), 0);
+ if (rc)
+ syslog(LOG_ERR, "%s: key inst: %s",
+ __func__, strerror(errno));
+ }
+
+ goto cifs_idmap_ret;
+ }
+
+ sidstr = strget(key_descr, "gi:");
+ if (sidstr) {
+ gid = atoi(sidstr);
+ syslog(LOG_DEBUG, "SID: %s, gid: %d", sidstr, gid);
+ rc = wbcGidToSid(gid, &sid);
+ if (rc)
+ syslog(LOG_DEBUG, "gid %d to SID error: %d", gid, rc);
+ if (!rc) { /* SID has been mapped to a gid */
+ rc = keyctl_instantiate(key, &sid,
+ sizeof(struct wbcDomainSid), 0);
+ if (rc)
+ syslog(LOG_ERR, "%s: key inst: %s",
+ __func__, strerror(errno));
+ }
+
+ goto cifs_idmap_ret;
+ }
+
+
syslog(LOG_DEBUG, "Invalid key: %s", key_descr);
cifs_idmap_ret:
--
1.6.0.2
--
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