From: Shirish Pargaonkar <[email protected]>
Add functions to map a uid and gid to a SID. These functions are similar to SID to uid and gid mapping functions. A SID is what is returned to the cifs module. Signed-off-by: Shirish Pargaonkar <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
