From 6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01 Mon Sep 17 00:00:00 2001 From: Simo Sorce Date: Thu, 29 Dec 2011 02:19:11 -0500 Subject: nsssrv: add handling of memory cache passwd map --- src/responder/nss/nsssrv_mmap_cache.c | 76 +++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) (limited to 'src/responder/nss/nsssrv_mmap_cache.c') diff --git a/src/responder/nss/nsssrv_mmap_cache.c b/src/responder/nss/nsssrv_mmap_cache.c index 2f90d826b..d1f639fd3 100644 --- a/src/responder/nss/nsssrv_mmap_cache.c +++ b/src/responder/nss/nsssrv_mmap_cache.c @@ -347,6 +347,82 @@ static struct sss_mc_rec *sss_mc_get_record(struct sss_mc_ctx *mcc, } +/*************************************************************************** + * passwd map + ***************************************************************************/ + +errno_t sss_mmap_cache_pw_store(struct sss_mc_ctx *mcc, + struct sized_string *name, + struct sized_string *pw, + uid_t uid, gid_t gid, + struct sized_string *gecos, + struct sized_string *homedir, + struct sized_string *shell) +{ + struct sss_mc_rec *rec; + struct sss_mc_pwd_data *data; + struct sized_string uidkey; + char uidstr[11]; + size_t data_len; + size_t rec_len; + size_t pos; + int ret; + + ret = snprintf(uidstr, 11, "%ld", (long)uid); + if (ret > 10) { + return EINVAL; + } + to_sized_string(&uidkey, uidstr); + + data_len = name->len + pw->len + gecos->len + homedir->len + shell->len; + rec_len = sizeof(struct sss_mc_rec) + + sizeof(struct sss_mc_pwd_data) + + data_len; + if (rec_len > mcc->dt_size) { + return ENOMEM; + } + + rec = sss_mc_get_record(mcc, rec_len, name); + + data = (struct sss_mc_pwd_data *)rec->data; + pos = 0; + + MC_RAISE_BARRIER(rec); + + /* header */ + rec->len = rec_len; + rec->expire = time(NULL) + mcc->valid_time_slot; + rec->hash1 = sss_mc_hash(mcc, name->str, name->len); + rec->hash2 = sss_mc_hash(mcc, uidkey.str, uidkey.len); + + /* passwd struct */ + data->name = MC_PTR_DIFF(data->strs, data); + data->uid = uid; + data->gid = gid; + data->strs_len = data_len; + memcpy(&data->strs[pos], name->str, name->len); + pos += name->len; + memcpy(&data->strs[pos], pw->str, pw->len); + pos += pw->len; + memcpy(&data->strs[pos], gecos->str, gecos->len); + pos += gecos->len; + memcpy(&data->strs[pos], homedir->str, homedir->len); + pos += homedir->len; + memcpy(&data->strs[pos], shell->str, shell->len); + pos += shell->len; + + MC_LOWER_BARRIER(rec); + + /* finally chain the rec in the hash table */ + /* name hash first */ + sss_mc_add_rec_to_chain(mcc, rec, rec->hash1); + /* then uid */ + sss_mc_add_rec_to_chain(mcc, rec, rec->hash2); + + return EOK; +} + + /*************************************************************************** * initialization ***************************************************************************/ -- cgit