eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include "util/util.h"

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include "confdb/confdb.h"

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include <sys/mman.h>

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include <fcntl.h>

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include "util/mmap_cache.h"

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include "responder/nss/nsssrv.h"

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#include "responder/nss/nsssrv_mmap_cache.h"

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#define SSS_AVG_PASSWD_PAYLOAD (MC_SLOT_SIZE * 4)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#define SSS_AVG_GROUP_PAYLOAD (MC_SLOT_SIZE * 3)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#define MC_NEXT_BARRIER(val) ((((val) + 1) & 0x00ffffff) | 0xf0000000)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#define MC_RAISE_BARRIER(m) do { \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce m->b2 = MC_NEXT_BARRIER(m->b1); \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce __sync_synchronize(); \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce} while (0)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce#define MC_LOWER_BARRIER(m) do { \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce __sync_synchronize(); \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce m->b1 = m->b2; \

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce} while (0)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce#define MC_RAISE_INVALID_BARRIER(m) do { \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce m->b2 = MC_INVALID_VAL; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce __sync_synchronize(); \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce} while (0)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorcestruct sss_mc_ctx {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce char *name; /* mmap cache name */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce enum sss_mc_type type; /* mmap cache type */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce char *file; /* mmap cache file name */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce int fd; /* file descriptor */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t seed; /* pseudo-random seed to avoid collision attacks */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce time_t valid_time_slot; /* maximum time the entry is valid in seconds */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce void *mmap_base; /* base address of mmap */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce size_t mmap_size; /* total size of mmap */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t *hash_table; /* hash table address (in mmap) */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t ht_size; /* size of hash table */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint8_t *free_table; /* free list bitmaps */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t ft_size; /* size of free table */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t next_slot; /* the next slot after last allocation */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint8_t *data_table; /* data table address (in mmap) */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t dt_size; /* size of data table */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce};

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce#define MC_FIND_BIT(base, num) \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t n = (num); \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint8_t *b = (base) + n / 8; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint8_t c = 0x80 >> (n % 8);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce#define MC_SET_BIT(base, num) do { \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_FIND_BIT(base, num) \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce *b |= c; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce} while (0)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce#define MC_CLEAR_BIT(base, num) do { \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_FIND_BIT(base, num) \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce *b &= ~c; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce} while (0)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce#define MC_PROBE_BIT(base, num, used) do { \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_FIND_BIT(base, num) \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (*b & c) used = true; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce else used = false; \

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce} while (0)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic uint32_t sss_mc_hash(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce const char *key, size_t len)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return murmurhash3(key, len, mcc->seed) % MC_HT_ELEMS(mcc->ht_size);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic void sss_mc_add_rec_to_chain(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t hash)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *cur;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = mcc->hash_table[hash];

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (slot == MC_INVALID_VAL) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* no previous record/collision, just add to hash table */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce mcc->hash_table[hash] = MC_PTR_TO_SLOT(mcc->data_table, rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce do {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (cur == rec) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* rec already stored in hash chain */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = cur->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce } while (slot != MC_INVALID_VAL);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* end of chain, append our record here */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* changing a single uint32_t is atomic, so there is no

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur->next = MC_PTR_TO_SLOT(mcc->data_table, rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic void sss_mc_rm_rec_from_chain(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t hash)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *prev = NULL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *cur = NULL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = mcc->hash_table[hash];

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (cur == rec) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce mcc->hash_table[hash] = rec->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce } else {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = cur->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce while (slot != MC_INVALID_VAL) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce prev = cur;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (cur == rec) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* changing a single uint32_t is atomic, so there is no

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce prev->next = cur->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce } else {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = cur->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic void sss_mc_invalidate_rec(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (rec->b1 == MC_INVALID_VAL) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* record already invalid */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* hash chain 1 */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce sss_mc_rm_rec_from_chain(mcc, rec, rec->hash1);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* hash chain 2 */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce sss_mc_rm_rec_from_chain(mcc, rec, rec->hash2);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_RAISE_INVALID_BARRIER(rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce memset(rec->data, 'X', rec->len - sizeof(struct sss_mc_rec));

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->len = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->expire = (uint64_t)-1;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->next = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->hash1 = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->hash2 = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_LOWER_BARRIER(rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic int sss_mc_find_free_slots(struct sss_mc_ctx *mcc, int num_slots)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t tot_slots;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t cur;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t i;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t t;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce bool used;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce tot_slots = mcc->ft_size * 8;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* Try to find a free slot w/o removing a nything first */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* FIXME: is it really worth it ? May be it is easier to

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if ((mcc->next_slot + num_slots) > tot_slots) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = 0;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce } else {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = mcc->next_slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* search for enough (num_slots) consecutive zero bits, indicating

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (i = 0; i < mcc->ft_size; i++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce t = cur / 8;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* if all full in this byte skip directly to the next */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (mcc->free_table[t] == 0xff) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = ((cur + 8) & ~7);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (cur >= tot_slots) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = 0;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce continue;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* at least one bit in this byte is marked as empty */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (t = ((cur + 8) & ~7) ; cur < t; cur++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_PROBE_BIT(mcc->free_table, cur, used);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (!used) break;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* check if we have enough slots before hitting the table end */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if ((cur + num_slots) > tot_slots) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = 0;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce continue;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* check if we have at least num_slots empty starting from the first

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (t = cur + num_slots; cur < t; cur++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_PROBE_BIT(mcc->free_table, cur, used);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (used) break;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (cur == t) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* ok found num_slots consecutive free bits */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return cur - num_slots;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* no free slots found, free occupied slots after next_slot */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if ((mcc->next_slot + num_slots) > tot_slots) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = 0;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce } else {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce cur = mcc->next_slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (i = 0; i < num_slots; i++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_PROBE_BIT(mcc->free_table, cur + i, used);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (!used) continue;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec = MC_SLOT_TO_PTR(mcc->data_table, cur + i, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (t = i + MC_SIZE_TO_SLOTS(rec->len); i < t; i++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_CLEAR_BIT(mcc->free_table, cur + i);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce sss_mc_invalidate_rec(mcc, rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce mcc->next_slot = cur + num_slots;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return cur;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic struct sss_mc_rec *sss_mc_find_record(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sized_string *key)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t hash;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rel_ptr_t name_ptr;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce char *t_key;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce hash = sss_mc_hash(mcc, key->str, key->len);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = mcc->hash_table[hash];

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (slot > MC_SIZE_TO_SLOTS(mcc->dt_size)) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return NULL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce while (slot != MC_INVALID_VAL) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce name_ptr = *((rel_ptr_t *)rec->data);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce t_key = (char *)rec->data + name_ptr;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (strcmp(key->str, t_key) == 0) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce break;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce slot = rec->next;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (slot == MC_INVALID_VAL) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return NULL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorcestatic struct sss_mc_rec *sss_mc_get_record(struct sss_mc_ctx *mcc,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce size_t rec_len,

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sized_string *key)

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce{

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *old_rec = NULL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce struct sss_mc_rec *rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce int old_slots;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce int num_slots;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce uint32_t base_slot;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce int i;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce num_slots = MC_SIZE_TO_SLOTS(rec_len);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce old_rec = sss_mc_find_record(mcc, key);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (old_rec) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce old_slots = MC_SIZE_TO_SLOTS(old_rec->len);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce if (old_slots == num_slots) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return old_rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* slot size changed, invalidate record and fall through to get a

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce base_slot = MC_PTR_TO_SLOT(mcc->data_table, old_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce sss_mc_invalidate_rec(mcc, old_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* and now free slots */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (i = 0; i < old_slots; i++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_CLEAR_BIT(mcc->free_table, base_slot + i);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* we are going to use more space, find enough free slots */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce base_slot = sss_mc_find_free_slots(mcc, num_slots);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec = MC_SLOT_TO_PTR(mcc->data_table, base_slot, struct sss_mc_rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* mark as not valid yet */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_RAISE_INVALID_BARRIER(rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->len = rec_len;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce rec->next = MC_INVALID_VAL;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_LOWER_BARRIER(rec);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce /* and now mark slots as used */

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce for (i = 0; i < num_slots; i++) {

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce MC_SET_BIT(mcc->free_table, base_slot + i);

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce }

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce return rec;

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce}

24451a6231ea0b7fd0e98a9931e8254aa17bf4cfSimo Sorce

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorcestatic inline void sss_mmap_set_rec_header(struct sss_mc_ctx *mcc,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce struct sss_mc_rec *rec,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce size_t len, int ttl,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce const char *key1, size_t key1_len,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce const char *key2, size_t key2_len)

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce{

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce rec->len = len;

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce rec->expire = time(NULL) + ttl;

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce rec->hash1 = sss_mc_hash(mcc, key1, key1_len);

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce rec->hash2 = sss_mc_hash(mcc, key2, key2_len);

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce}

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorcestatic inline void sss_mmap_chain_in_rec(struct sss_mc_ctx *mcc,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce struct sss_mc_rec *rec)

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce{

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce /* name first */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mc_add_rec_to_chain(mcc, rec, rec->hash1);

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce /* then uid/gid */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mc_add_rec_to_chain(mcc, rec, rec->hash2);

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce}

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorcestatic errno_t sss_mmap_cache_invalidate(struct sss_mc_ctx *mcc,

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sized_string *key)

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce{

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sss_mc_rec *rec;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce rec = sss_mc_find_record(mcc, key);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (rec == NULL) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce /* nothing to invalidate */

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return ENOENT;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce sss_mc_invalidate_rec(mcc, rec);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return EOK;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce}

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorceerrno_t sss_mmap_cache_pw_store(struct sss_mc_ctx *mcc,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string *name,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string *pw,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce uid_t uid, gid_t gid,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string *gecos,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string *homedir,

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string *shell)

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce{

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sss_mc_rec *rec;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sss_mc_pwd_data *data;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce struct sized_string uidkey;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce char uidstr[11];

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce size_t data_len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce size_t rec_len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce size_t pos;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce int ret;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce ret = snprintf(uidstr, 11, "%ld", (long)uid);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce if (ret > 10) {

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce return EINVAL;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce }

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce to_sized_string(&uidkey, uidstr);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data_len = name->len + pw->len + gecos->len + homedir->len + shell->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce rec_len = sizeof(struct sss_mc_rec) +

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce sizeof(struct sss_mc_pwd_data) +

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data_len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce if (rec_len > mcc->dt_size) {

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce return ENOMEM;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce }

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce rec = sss_mc_get_record(mcc, rec_len, name);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data = (struct sss_mc_pwd_data *)rec->data;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos = 0;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce MC_RAISE_BARRIER(rec);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce /* header */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mmap_set_rec_header(mcc, rec, rec_len, mcc->valid_time_slot,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce name->str, name->len, uidkey.str, uidkey.len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce /* passwd struct */

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data->name = MC_PTR_DIFF(data->strs, data);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data->uid = uid;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data->gid = gid;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce data->strs_len = data_len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce memcpy(&data->strs[pos], name->str, name->len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos += name->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce memcpy(&data->strs[pos], pw->str, pw->len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos += pw->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce memcpy(&data->strs[pos], gecos->str, gecos->len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos += gecos->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce memcpy(&data->strs[pos], homedir->str, homedir->len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos += homedir->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce memcpy(&data->strs[pos], shell->str, shell->len);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce pos += shell->len;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce MC_LOWER_BARRIER(rec);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce /* finally chain the rec in the hash table */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mmap_chain_in_rec(mcc, rec);

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce return EOK;

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce}

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorceerrno_t sss_mmap_cache_pw_invalidate(struct sss_mc_ctx *mcc,

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sized_string *name)

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce{

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return sss_mmap_cache_invalidate(mcc, name);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce}

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorceerrno_t sss_mmap_cache_pw_invalidate_uid(struct sss_mc_ctx *mcc, uid_t uid)

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce{

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sss_mc_rec *rec;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sss_mc_pwd_data *data;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce uint32_t hash;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce uint32_t slot;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce char *uidstr;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce errno_t ret;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce uidstr = talloc_asprintf(NULL, "%ld", (long)uid);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (!uidstr) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return ENOMEM;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce hash = sss_mc_hash(mcc, uidstr, strlen(uidstr) + 1);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce slot = mcc->hash_table[hash];

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (slot > MC_SIZE_TO_SLOTS(mcc->dt_size)) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = ENOENT;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce goto done;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce while (slot != MC_INVALID_VAL) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce rec = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce data = (struct sss_mc_pwd_data *)(&rec->data);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (uid == data->uid) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce break;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce slot = rec->next;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (slot == MC_INVALID_VAL) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = ENOENT;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce goto done;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce sss_mc_invalidate_rec(mcc, rec);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = EOK;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorcedone:

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce talloc_zfree(uidstr);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return ret;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce}

6cb1a6e7c7517ab4ccb8ad37ade86f95b5c16a01Simo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorceint sss_mmap_cache_gr_store(struct sss_mc_ctx *mcc,

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce struct sized_string *name,

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce struct sized_string *pw,

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce gid_t gid, size_t memnum,

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce char *membuf, size_t memsize)

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce{

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce struct sss_mc_rec *rec;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce struct sss_mc_grp_data *data;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce struct sized_string gidkey;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce char gidstr[11];

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce size_t data_len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce size_t rec_len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce size_t pos;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce int ret;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce ret = snprintf(gidstr, 11, "%ld", (long)gid);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce if (ret > 10) {

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce return EINVAL;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce }

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce to_sized_string(&gidkey, gidstr);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data_len = name->len + pw->len + memsize;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce rec_len = sizeof(struct sss_mc_rec) +

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce sizeof(struct sss_mc_grp_data) +

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data_len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce if (rec_len > mcc->dt_size) {

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce return ENOMEM;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce }

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce rec = sss_mc_get_record(mcc, rec_len, name);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data = (struct sss_mc_grp_data *)rec->data;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce pos = 0;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce MC_RAISE_BARRIER(rec);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce /* header */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mmap_set_rec_header(mcc, rec, rec_len, mcc->valid_time_slot,

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce name->str, name->len, gidkey.str, gidkey.len);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce /* group struct */

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data->name = MC_PTR_DIFF(data->strs, data);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data->gid = gid;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data->members = memnum;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce data->strs_len = data_len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce memcpy(&data->strs[pos], name->str, name->len);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce pos += name->len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce memcpy(&data->strs[pos], pw->str, pw->len);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce pos += pw->len;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce memcpy(&data->strs[pos], membuf, memsize);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce pos += memsize;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce MC_LOWER_BARRIER(rec);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce /* finally chain the rec in the hash table */

b294d4c50ec4431bc07ad7ec5a73e8af0e53c54fSimo Sorce sss_mmap_chain_in_rec(mcc, rec);

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce return EOK;

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce}

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorceerrno_t sss_mmap_cache_gr_invalidate(struct sss_mc_ctx *mcc,

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sized_string *name)

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce{

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return sss_mmap_cache_invalidate(mcc, name);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce}

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorceerrno_t sss_mmap_cache_gr_invalidate_gid(struct sss_mc_ctx *mcc, gid_t gid)

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce{

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sss_mc_rec *rec;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce struct sss_mc_grp_data *data;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce uint32_t hash;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce uint32_t slot;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce char *gidstr;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce errno_t ret;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce gidstr = talloc_asprintf(NULL, "%ld", (long)gid);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (!gidstr) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return ENOMEM;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce hash = sss_mc_hash(mcc, gidstr, strlen(gidstr) + 1);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce slot = mcc->hash_table[hash];

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (slot > MC_SIZE_TO_SLOTS(mcc->dt_size)) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = ENOENT;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce goto done;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce while (slot != MC_INVALID_VAL) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce rec = MC_SLOT_TO_PTR(mcc->data_table, slot, struct sss_mc_rec);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce data = (struct sss_mc_grp_data *)(&rec->data);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (gid == data->gid) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce break;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce slot = rec->next;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce if (slot == MC_INVALID_VAL) {

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = ENOENT;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce goto done;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce }

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce sss_mc_invalidate_rec(mcc, rec);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce ret = EOK;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorcedone:

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce talloc_zfree(gidstr);

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce return ret;

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce}

8088274b2389b76f4be581736e55f26a8322fad1Simo Sorce

c3ef027218fe9a7d16a70ca9d2f53e3d995e369fSimo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorcestatic errno_t sss_mc_set_recycled(int fd)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce{

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce uint32_t w = SSS_MC_HEADER_RECYCLED;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce struct sss_mc_header h;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce off_t offset;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce off_t pos;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce int ret;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce offset = MC_PTR_DIFF(&h.status, &h);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce pos = lseek(fd, offset, SEEK_SET);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (pos == -1) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* What do we do now ? */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return errno;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek errno = 0;

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek ret = sss_atomic_write_s(fd, (uint8_t *)&w, sizeof(h.status));

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek if (ret == -1) {

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek return errno;

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek }

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek if (ret != sizeof(h.status)) {

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek /* Write error */

9d7d4458d94d0aac0a7edf999368eb18f89cb76aJakub Hrozek return EIO;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return EOK;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce}

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorcestatic errno_t sss_mc_create_file(struct sss_mc_ctx *mc_ctx)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce{

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mode_t old_mask;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce int ofd;

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek int ret, uret;

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek useconds_t t = 50000;

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek int retries = 3;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ofd = open(mc_ctx->file, O_RDWR);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ofd != -1) {

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek ret = sss_br_lock_file(ofd, 0, 1, retries, t);

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek if (ret != EOK) {

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek DEBUG(SSSDBG_FATAL_FAILURE,

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek ("Failed to lock file %s.\n", mc_ctx->file));

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = sss_mc_set_recycled(ofd);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret) {

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek DEBUG(SSSDBG_FATAL_FAILURE, ("Failed to mark mmap file %s as"

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek " recycled: %d(%s)\n",

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek mc_ctx->file, ret, strerror(ret)));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce close(ofd);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

0d3bd5e0dbdd7579b64cec0b0e93605a3c37cdc1Stephen Gallagher errno = 0;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = unlink(mc_ctx->file);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret == -1) {

0d3bd5e0dbdd7579b64cec0b0e93605a3c37cdc1Stephen Gallagher ret = errno;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce DEBUG(SSSDBG_TRACE_FUNC, ("Failed to rm mmap file %s: %d(%s)\n",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file, ret, strerror(ret)));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* temporarily relax umask as we need the file to be readable

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce old_mask = umask(0022);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek errno = 0;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->fd = open(mc_ctx->file, O_CREAT | O_EXCL | O_RDWR, 0644);

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek umask(old_mask);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (mc_ctx->fd == -1) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = errno;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to open mmap file %s: %d(%s)\n",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file, ret, strerror(ret)));

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek return ret;

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek }

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek ret = sss_br_lock_file(mc_ctx->fd, 0, 1, retries, t);

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek if (ret != EOK) {

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek DEBUG(SSSDBG_FATAL_FAILURE,

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek ("Failed to lock file %s.\n", mc_ctx->file));

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek close(mc_ctx->fd);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek /* Report on unlink failures but don't overwrite the errno

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek errno = 0;

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek uret = unlink(mc_ctx->file);

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek if (uret == -1) {

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek uret = errno;

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek DEBUG(SSSDBG_TRACE_FUNC, ("Failed to rm mmap file %s: %d(%s)\n",

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek mc_ctx->file, uret, strerror(uret)));

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

8b7040df8bcfee8cb31903136562eea73232f3d0Jakub Hrozek return ret;

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek }

33cbb789ff71be5dccbb4a0acd68814b0d53da34Michal Zidek

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return ret;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce}

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorcestatic void sss_mc_header_update(struct sss_mc_ctx *mc_ctx, int status)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce{

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce struct sss_mc_header *h;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* update header using barriers */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h = (struct sss_mc_header *)mc_ctx->mmap_base;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_RAISE_BARRIER(h);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (status != SSS_MC_HEADER_RECYCLED) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* no reason to update anything else if the file is recycled */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->hash_table = MC_PTR_DIFF(mc_ctx->hash_table, mc_ctx->mmap_base);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->free_table = MC_PTR_DIFF(mc_ctx->free_table, mc_ctx->mmap_base);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->data_table = MC_PTR_DIFF(mc_ctx->data_table, mc_ctx->mmap_base);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->ht_size = mc_ctx->ht_size;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->ft_size = mc_ctx->ft_size;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->dt_size = mc_ctx->dt_size;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->major_vno = SSS_MC_MAJOR_VNO;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->minor_vno = SSS_MC_MINOR_VNO;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->seed = mc_ctx->seed;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->reserved = 0;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce h->status = status;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_LOWER_BARRIER(h);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce}

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorceerrno_t sss_mmap_cache_init(TALLOC_CTX *mem_ctx, const char *name,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce enum sss_mc_type type, size_t n_elem,

e9f08ebaba5ec61af74c112f50c7d66257998c97Jan Zeleny time_t timeout, struct sss_mc_ctx **mcc)

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce{

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce struct sss_mc_ctx *mc_ctx = NULL;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce unsigned int rseed;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce int payload;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce int ret;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce switch (type) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce case SSS_MC_PASSWD:

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce payload = SSS_AVG_PASSWD_PAYLOAD;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce break;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce case SSS_MC_GROUP:

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce payload = SSS_AVG_GROUP_PAYLOAD;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce break;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce default:

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return EINVAL;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx = talloc_zero(mem_ctx, struct sss_mc_ctx);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (!mc_ctx) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return ENOMEM;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->fd = -1;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->name = talloc_strdup(mem_ctx, name);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (!mc_ctx->name) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = ENOMEM;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce goto done;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->type = type;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

e9f08ebaba5ec61af74c112f50c7d66257998c97Jan Zeleny mc_ctx->valid_time_slot = timeout;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file = talloc_asprintf(mc_ctx, "%s/%s",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce SSS_NSS_MCACHE_DIR, name);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (!mc_ctx->file) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = ENOMEM;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce goto done;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* elements must always be multiple of 8 to make things easier to handle,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* We can use MC_ALIGN64 for this */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce n_elem = MC_ALIGN64(n_elem);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* hash table is double the size because it will store both forward and

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->ht_size = MC_HT_SIZE(n_elem * 2);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->dt_size = MC_DT_SIZE(n_elem, payload);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->ft_size = MC_FT_SIZE(n_elem);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->mmap_size = MC_HEADER_SIZE +

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_ALIGN64(mc_ctx->dt_size) +

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_ALIGN64(mc_ctx->ft_size) +

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_ALIGN64(mc_ctx->ht_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* for now ALWAYS create a new file on restart */

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = sss_mc_create_file(mc_ctx);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce goto done;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = ftruncate(mc_ctx->fd, mc_ctx->mmap_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret == -1) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = errno;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to resize file %s: %d(%s)\n",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file, ret, strerror(ret)));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce goto done;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->mmap_base = mmap(NULL, mc_ctx->mmap_size,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce PROT_READ | PROT_WRITE,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MAP_SHARED, mc_ctx->fd, 0);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (mc_ctx->mmap_base == MAP_FAILED) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = errno;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to mmap file %s(%ld): %d(%s)\n",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file, mc_ctx->mmap_size,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret, strerror(ret)));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce goto done;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->data_table = MC_PTR_ADD(mc_ctx->mmap_base, MC_HEADER_SIZE);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->free_table = MC_PTR_ADD(mc_ctx->data_table,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_ALIGN64(mc_ctx->dt_size));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->hash_table = MC_PTR_ADD(mc_ctx->free_table,

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce MC_ALIGN64(mc_ctx->ft_size));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce memset(mc_ctx->data_table, 0x00, mc_ctx->dt_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce memset(mc_ctx->free_table, 0x00, mc_ctx->ft_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce memset(mc_ctx->hash_table, 0xff, mc_ctx->ht_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce /* generate a pseudo-random seed.

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce rseed = time(NULL) * getpid();

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->seed = rand_r(&rseed);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce sss_mc_header_update(mc_ctx, SSS_MC_HEADER_ALIVE);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = EOK;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorcedone:

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (mc_ctx && mc_ctx->mmap_base) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce munmap(mc_ctx->mmap_base, mc_ctx->mmap_size);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (mc_ctx && mc_ctx->fd != -1) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce close(mc_ctx->fd);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce ret = unlink(mc_ctx->file);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce if (ret == -1) {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to rm mmap file %s: %d(%s)\n",

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce mc_ctx->file, ret, strerror(ret)));

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce talloc_free(mc_ctx);

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce } else {

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce *mcc = mc_ctx;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce }

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce return ret;

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce}

eb2e21b764d03544d8161e9956d7f70b07b75f77Simo Sorce

99c99e557020775714f028b28a147edda290c783Michal Zidekerrno_t sss_mmap_cache_reinit(TALLOC_CTX *mem_ctx, size_t n_elem,

99c99e557020775714f028b28a147edda290c783Michal Zidek time_t timeout, struct sss_mc_ctx **mc_ctx)

99c99e557020775714f028b28a147edda290c783Michal Zidek{

99c99e557020775714f028b28a147edda290c783Michal Zidek errno_t ret;

99c99e557020775714f028b28a147edda290c783Michal Zidek TALLOC_CTX* tmp_ctx = NULL;

99c99e557020775714f028b28a147edda290c783Michal Zidek char *name;

99c99e557020775714f028b28a147edda290c783Michal Zidek enum sss_mc_type type;

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidek if (mc_ctx == NULL || (*mc_ctx) == NULL) {

99c99e557020775714f028b28a147edda290c783Michal Zidek DEBUG(SSSDBG_CRIT_FAILURE,

99c99e557020775714f028b28a147edda290c783Michal Zidek ("Unable to re-init unitialized memory cache.\n"));

99c99e557020775714f028b28a147edda290c783Michal Zidek return EINVAL;

99c99e557020775714f028b28a147edda290c783Michal Zidek }

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidek tmp_ctx = talloc_new(NULL);

99c99e557020775714f028b28a147edda290c783Michal Zidek if (tmp_ctx == NULL) {

99c99e557020775714f028b28a147edda290c783Michal Zidek DEBUG(SSSDBG_CRIT_FAILURE, ("Out of memory.\n"));

99c99e557020775714f028b28a147edda290c783Michal Zidek return ENOMEM;

99c99e557020775714f028b28a147edda290c783Michal Zidek }

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidek name = talloc_strdup(tmp_ctx, (*mc_ctx)->name);

99c99e557020775714f028b28a147edda290c783Michal Zidek if (name == NULL) {

99c99e557020775714f028b28a147edda290c783Michal Zidek DEBUG(SSSDBG_CRIT_FAILURE, ("Out of memory.\n"));

99c99e557020775714f028b28a147edda290c783Michal Zidek ret = ENOMEM;

99c99e557020775714f028b28a147edda290c783Michal Zidek goto done;

99c99e557020775714f028b28a147edda290c783Michal Zidek }

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidek type = (*mc_ctx)->type;

99c99e557020775714f028b28a147edda290c783Michal Zidek ret = talloc_free(*mc_ctx);

99c99e557020775714f028b28a147edda290c783Michal Zidek if (ret != 0) {

99c99e557020775714f028b28a147edda290c783Michal Zidek /* This can happen only if destructor is associated with this

99c99e557020775714f028b28a147edda290c783Michal Zidek DEBUG(SSSDBG_MINOR_FAILURE, ("Destructor asociated with memory"

99c99e557020775714f028b28a147edda290c783Michal Zidek " context failed.\n"));

99c99e557020775714f028b28a147edda290c783Michal Zidek }

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidek ret = sss_mmap_cache_init(mem_ctx, name, type, n_elem, timeout, mc_ctx);

99c99e557020775714f028b28a147edda290c783Michal Zidek if (ret != EOK) {

99c99e557020775714f028b28a147edda290c783Michal Zidek DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to re-initialize mmap cache.\n"));

99c99e557020775714f028b28a147edda290c783Michal Zidek goto done;

99c99e557020775714f028b28a147edda290c783Michal Zidek }

99c99e557020775714f028b28a147edda290c783Michal Zidek

99c99e557020775714f028b28a147edda290c783Michal Zidekdone:

99c99e557020775714f028b28a147edda290c783Michal Zidek talloc_free(tmp_ctx);

99c99e557020775714f028b28a147edda290c783Michal Zidek return ret;

99c99e557020775714f028b28a147edda290c783Michal Zidek}