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autofs/autofs-5.1.1-change-time-to-use-monotonic_clock.patch

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autofs-5.1.1 - change time() to use monotonic_clock()
From: Yu Ning <ning.yu@ubuntu.com>
The time returned by gettimeofday() is affected by discontinuous jumps
in the system time, so it causes an issue that autofs may not auto
unmount a mount point if system time is manually changed by the system
administrator.
To fix the issue we need to convert to using a monotonic clock source
instead of the clock source used by gettimeofday().
Finally hange the time() function calls to monotonic_clock() calls.
Signed-off-by: Yu Ning <ning.yu@ubuntu.com>
Signed-off-by: Ian Kent <raven@themaw.net>
---
CHANGELOG | 1 +
daemon/automount.c | 4 ++--
daemon/direct.c | 4 ++--
daemon/indirect.c | 4 ++--
daemon/lookup.c | 6 +++---
daemon/state.c | 2 +-
lib/cache.c | 2 +-
lib/master.c | 4 ++--
modules/dclist.c | 2 +-
modules/lookup_file.c | 8 ++++----
modules/lookup_hesiod.c | 6 +++---
modules/lookup_hosts.c | 4 ++--
modules/lookup_ldap.c | 10 +++++-----
modules/lookup_nisplus.c | 10 +++++-----
modules/lookup_program.c | 10 +++++-----
modules/lookup_sss.c | 6 +++---
modules/lookup_userhome.c | 2 +-
modules/lookup_yp.c | 8 ++++----
modules/mount_autofs.c | 2 +-
modules/parse_amd.c | 2 +-
modules/replicated.c | 4 ++--
21 files changed, 51 insertions(+), 50 deletions(-)
diff --git a/CHANGELOG b/CHANGELOG
index 49520d3..4f589db 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -29,6 +29,7 @@
- use monotonic clock for direct mount condition.
- use monotonic clock for indirect mount condition.
- change remaining gettimeofday() to use clock_gettime().
+- change time() to use monotonic_clock().
21/04/2015 autofs-5.1.1
=======================
diff --git a/daemon/automount.c b/daemon/automount.c
index 6cba3db..74e62a1 100644
--- a/daemon/automount.c
+++ b/daemon/automount.c
@@ -1454,7 +1454,7 @@ static void *statemachine(void *arg)
break;
case SIGHUP:
- do_hup_signal(master_list, time(NULL));
+ do_hup_signal(master_list, monotonic_time(NULL));
break;
default:
@@ -2005,7 +2005,7 @@ int main(int argc, char *argv[])
unsigned ghost, logging, daemon_check;
unsigned dumpmaps, foreground, have_global_options;
time_t timeout;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
struct rlimit rlim;
const char *options = "+hp:t:vmdD:fVrO:l:n:CF";
static const struct option long_options[] = {
diff --git a/daemon/direct.c b/daemon/direct.c
index 9b7fd76..d427580 100644
--- a/daemon/direct.c
+++ b/daemon/direct.c
@@ -468,7 +468,7 @@ int mount_autofs_direct(struct autofs_point *ap)
struct mapent_cache *nc, *mc;
struct mapent *me, *ne, *nested;
struct mnt_list *mnts;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
if (strcmp(ap->path, "/-")) {
error(ap->logopt, "expected direct map, exiting");
@@ -1387,7 +1387,7 @@ int handle_packet_missing_direct(struct autofs_point *ap, autofs_packet_missing_
}
/* Check if we recorded a mount fail for this key */
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
ops->send_fail(ap->logopt,
ioctlfd, pkt->wait_queue_token, -ENOENT);
ops->close(ap->logopt, ioctlfd);
diff --git a/daemon/indirect.c b/daemon/indirect.c
index 263fff1..4c32bdb 100644
--- a/daemon/indirect.c
+++ b/daemon/indirect.c
@@ -201,7 +201,7 @@ out_err:
int mount_autofs_indirect(struct autofs_point *ap, const char *root)
{
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
int status;
int map;
@@ -817,7 +817,7 @@ int handle_packet_missing_indirect(struct autofs_point *ap, autofs_packet_missin
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, pkt->name, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
ops->send_fail(ap->logopt, ap->ioctlfd,
pkt->wait_queue_token, -ENOENT);
cache_unlock(me->mc);
diff --git a/daemon/lookup.c b/daemon/lookup.c
index afd14ab..0129f75 100644
--- a/daemon/lookup.c
+++ b/daemon/lookup.c
@@ -841,7 +841,7 @@ static int lookup_name_file_source_instance(struct autofs_point *ap, struct map_
struct map_source *instance;
char src_file[] = "file";
char src_prog[] = "program";
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
struct stat st;
char *type, *format;
@@ -881,7 +881,7 @@ static int lookup_name_source_instance(struct autofs_point *ap, struct map_sourc
{
struct map_source *instance;
const char *format;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
if (*name == '/' && map->flags & MAP_FLAG_FORMAT_AMD)
return lookup_amd_instance(ap, map, name, name_len);
@@ -1045,7 +1045,7 @@ static void update_negative_cache(struct autofs_point *ap, struct map_source *so
else
map = entry->maps;
if (map) {
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
int rv = CHE_FAIL;
cache_writelock(map->mc);
diff --git a/daemon/state.c b/daemon/state.c
index 6c8c4f6..3ef8d95 100644
--- a/daemon/state.c
+++ b/daemon/state.c
@@ -564,7 +564,7 @@ static unsigned int st_readmap(struct autofs_point *ap)
pthread_t thid;
struct readmap_args *ra;
int status;
- int now = time(NULL);
+ int now = monotonic_time(NULL);
debug(ap->logopt, "state %d path %s", ap->state, ap->path);
diff --git a/lib/cache.c b/lib/cache.c
index 631d275..44e323d 100644
--- a/lib/cache.c
+++ b/lib/cache.c
@@ -775,7 +775,7 @@ void cache_update_negative(struct mapent_cache *mc,
struct map_source *ms, const char *key,
time_t timeout)
{
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
struct mapent *me;
int rv = CHE_OK;
diff --git a/lib/master.c b/lib/master.c
index 4588fa7..9ffdd1a 100644
--- a/lib/master.c
+++ b/lib/master.c
@@ -1484,7 +1484,7 @@ int dump_map(struct master *master, const char *type, const char *name)
struct map_source *source;
struct master_mapent *this;
struct autofs_point *ap;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
this = list_entry(p, struct master_mapent, list);
p = p->next;
@@ -1602,7 +1602,7 @@ int master_show_mounts(struct master *master)
struct map_source *source;
struct master_mapent *this;
struct autofs_point *ap;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
unsigned int count = 0;
this = list_entry(p, struct master_mapent, list);
diff --git a/modules/dclist.c b/modules/dclist.c
index af21ce0..4daa199 100644
--- a/modules/dclist.c
+++ b/modules/dclist.c
@@ -568,7 +568,7 @@ struct dclist *get_dc_list(unsigned int logopt, const char *uri)
if (!list)
goto out_error;
- dclist->expire = time(NULL) + min_ttl;
+ dclist->expire = monotonic_time(NULL) + min_ttl;
dclist->uri = list;
return dclist;
diff --git a/modules/lookup_file.c b/modules/lookup_file.c
index aed3cba..72444fe 100644
--- a/modules/lookup_file.c
+++ b/modules/lookup_file.c
@@ -795,7 +795,7 @@ static int match_key(struct autofs_point *ap,
{
char buf[MAX_ERR_BUF];
struct mapent_cache *mc;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
char *lkp_key;
char *prefix;
size_t map_key_len;
@@ -860,7 +860,7 @@ static int lookup_one(struct autofs_point *ap,
struct mapent_cache *mc = source->mc;
char mkey[KEY_MAX_LEN + 1];
char mapent[MAPENT_MAX_LEN + 1];
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
FILE *f;
unsigned int k_len, m_len;
int entry, ret;
@@ -966,7 +966,7 @@ static int lookup_wild(struct autofs_point *ap,
struct mapent_cache *mc;
char mkey[KEY_MAX_LEN + 1];
char mapent[MAPENT_MAX_LEN + 1];
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
FILE *f;
unsigned int k_len, m_len;
int entry, ret;
@@ -1170,7 +1170,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, key, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_hesiod.c b/modules/lookup_hesiod.c
index c0f7f51..12ccf41 100644
--- a/modules/lookup_hesiod.c
+++ b/modules/lookup_hesiod.c
@@ -222,7 +222,7 @@ static int lookup_one(struct autofs_point *ap,
}
cache_writelock(mc);
- ret = cache_update(mc, source, key, best_record, time(NULL));
+ ret = cache_update(mc, source, key, best_record, monotonic_time(NULL));
cache_unlock(mc);
if (ret == CHE_FAIL) {
hesiod_free_list(ctxt->hesiod_context, hes_result);
@@ -287,7 +287,7 @@ static int lookup_one_amd(struct autofs_point *ap,
}
cache_writelock(mc);
- ret = cache_update(mc, source, lkp_key, *hes_result, time(NULL));
+ ret = cache_update(mc, source, lkp_key, *hes_result, monotonic_time(NULL));
cache_unlock(mc);
if (hes_result)
@@ -398,7 +398,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, name, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_hosts.c b/modules/lookup_hosts.c
index 0a64655..163b02d 100644
--- a/modules/lookup_hosts.c
+++ b/modules/lookup_hosts.c
@@ -302,7 +302,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
struct mapent *me;
char *mapent = NULL;
int mapent_len;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
int ret;
source = ap->entry->current;
@@ -314,7 +314,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, name, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_ldap.c b/modules/lookup_ldap.c
index 578d6c6..afc89c1 100644
--- a/modules/lookup_ldap.c
+++ b/modules/lookup_ldap.c
@@ -995,7 +995,7 @@ static int do_reconnect(unsigned logopt,
uris_mutex_lock(ctxt);
if (ctxt->dclist) {
- if (!ldap || ctxt->dclist->expire < time(NULL)) {
+ if (!ldap || ctxt->dclist->expire < monotonic_time(NULL)) {
free_dclist(ctxt->dclist);
ctxt->dclist = NULL;
}
@@ -2961,7 +2961,7 @@ static int lookup_one(struct autofs_point *ap, struct map_source *source,
struct mapent_cache *mc;
int rv, i, l, ql, count;
char buf[MAX_ERR_BUF];
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
char *query;
LDAPMessage *result = NULL, *e;
char *class, *info, *entry;
@@ -3326,7 +3326,7 @@ static int lookup_one_amd(struct autofs_point *ap,
struct berval **bvKey;
struct berval **bvValues;
char buf[MAX_ERR_BUF];
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
int rv, l, ql, count;
int ret = CHE_MISSING;
@@ -3531,7 +3531,7 @@ static int check_map_indirect(struct autofs_point *ap,
unsigned int is_amd_format = source->flags & MAP_FLAG_FORMAT_AMD;
struct mapent_cache *mc;
struct mapent *me;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
time_t t_last_read;
int ret, cur_state;
int status;
@@ -3669,7 +3669,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, key, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_nisplus.c b/modules/lookup_nisplus.c
index 5fd1d89..27f9856 100644
--- a/modules/lookup_nisplus.c
+++ b/modules/lookup_nisplus.c
@@ -338,7 +338,7 @@ static int lookup_one(struct autofs_point *ap,
nis_result *result;
nis_object *this;
char *mapent;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
int ret, cur_state;
char buf[MAX_ERR_BUF];
@@ -450,7 +450,7 @@ static int lookup_wild(struct autofs_point *ap,
nis_result *result;
nis_object *this;
char *mapent;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
int ret, cur_state;
char buf[MAX_ERR_BUF];
@@ -537,7 +537,7 @@ static int lookup_amd_defaults(struct autofs_point *ap,
mapent = ENTRY_VAL(this, 1);
cache_writelock(mc);
- ret = cache_update(mc, source, "/defaults", mapent, time(NULL));
+ ret = cache_update(mc, source, "/defaults", mapent, monotonic_time(NULL));
cache_unlock(mc);
nis_freeresult(result);
@@ -555,7 +555,7 @@ static int check_map_indirect(struct autofs_point *ap,
unsigned int is_amd_format = source->flags & MAP_FLAG_FORMAT_AMD;
struct mapent_cache *mc;
struct mapent *me, *exists;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
time_t t_last_read;
int ret = 0;
@@ -700,7 +700,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, key, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_program.c b/modules/lookup_program.c
index a46ff0e..b3f1c1f 100644
--- a/modules/lookup_program.c
+++ b/modules/lookup_program.c
@@ -430,7 +430,7 @@ static int lookup_amd_defaults(struct autofs_point *ap,
while (isblank(*start))
start++;
cache_writelock(mc);
- ret = cache_update(mc, source, "/defaults", start, time(NULL));
+ ret = cache_update(mc, source, "/defaults", start, monotonic_time(NULL));
cache_unlock(mc);
if (ret == CHE_FAIL) {
free(ment);
@@ -499,7 +499,7 @@ static int match_key(struct autofs_point *ap,
start++;
}
cache_writelock(mc);
- ret = cache_update(mc, source, lkp_key, start, time(NULL));
+ ret = cache_update(mc, source, lkp_key, start, monotonic_time(NULL));
cache_unlock(mc);
if (ret == CHE_FAIL) {
free(ment);
@@ -552,7 +552,7 @@ static int match_key(struct autofs_point *ap,
while (isblank(*start))
start++;
cache_writelock(mc);
- ret = cache_update(mc, source, match, start, time(NULL));
+ ret = cache_update(mc, source, match, start, monotonic_time(NULL));
cache_unlock(mc);
if (ret == CHE_FAIL) {
free(match);
@@ -598,7 +598,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, name, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
@@ -647,7 +647,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
* proceed with the program map lookup.
*/
if (strchr(name, '/') ||
- me->age + ap->negative_timeout > time(NULL)) {
+ me->age + ap->negative_timeout > monotonic_time(NULL)) {
char *ent = NULL;
if (me->mapent) {
diff --git a/modules/lookup_sss.c b/modules/lookup_sss.c
index 2f32e94..e01dd28 100644
--- a/modules/lookup_sss.c
+++ b/modules/lookup_sss.c
@@ -447,7 +447,7 @@ static int lookup_one(struct autofs_point *ap,
struct mapent_cache *mc;
struct mapent *we;
void *sss_ctxt = NULL;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
char buf[MAX_ERR_BUF];
char *value = NULL;
char *s_key;
@@ -568,7 +568,7 @@ static int check_map_indirect(struct autofs_point *ap,
struct map_source *source;
struct mapent_cache *mc;
struct mapent *me;
- time_t now = time(NULL);
+ time_t now = monotonic_time(NULL);
time_t t_last_read;
int ret, cur_state;
@@ -662,7 +662,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, key, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/lookup_userhome.c b/modules/lookup_userhome.c
index c21dee9..8117640 100644
--- a/modules/lookup_userhome.c
+++ b/modules/lookup_userhome.c
@@ -84,7 +84,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
}
cache_writelock(mc);
- ret = cache_update(mc, source, name, NULL, time(NULL));
+ ret = cache_update(mc, source, name, NULL, monotonic_time(NULL));
cache_unlock(mc);
if (ret == CHE_FAIL) {
diff --git a/modules/lookup_yp.c b/modules/lookup_yp.c
index e31c2cf..eda2aba 100644
--- a/modules/lookup_yp.c
+++ b/modules/lookup_yp.c
@@ -461,7 +461,7 @@ static int lookup_one(struct autofs_point *ap,
char *mapname;
char *mapent;
int mapent_len;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
int ret;
mc = source->mc;
@@ -573,7 +573,7 @@ static int lookup_wild(struct autofs_point *ap,
char *mapname;
char *mapent;
int mapent_len;
- time_t age = time(NULL);
+ time_t age = monotonic_time(NULL);
int ret;
mc = source->mc;
@@ -654,7 +654,7 @@ static int lookup_amd_defaults(struct autofs_point *ap,
return CHE_FAIL;
cache_writelock(mc);
- ret = cache_update(mc, source, "/defaults", mapent, time(NULL));
+ ret = cache_update(mc, source, "/defaults", mapent, monotonic_time(NULL));
cache_unlock(mc);
return ret;
@@ -809,7 +809,7 @@ int lookup_mount(struct autofs_point *ap, const char *name, int name_len, void *
/* Check if we recorded a mount fail for this key anywhere */
me = lookup_source_mapent(ap, key, LKP_DISTINCT);
if (me) {
- if (me->status >= time(NULL)) {
+ if (me->status >= monotonic_time(NULL)) {
cache_unlock(me->mc);
return NSS_STATUS_NOTFOUND;
} else {
diff --git a/modules/mount_autofs.c b/modules/mount_autofs.c
index 39948e6..c6a3199 100644
--- a/modules/mount_autofs.c
+++ b/modules/mount_autofs.c
@@ -247,7 +247,7 @@ int mount_mount(struct autofs_point *ap, const char *root, const char *name,
source = master_add_map_source(entry,
info->type, info->format,
- time(NULL), argc, argv);
+ monotonic_time(NULL), argc, argv);
if (!source) {
error(ap->logopt,
MODPREFIX "failed to add map source to entry");
diff --git a/modules/parse_amd.c b/modules/parse_amd.c
index 0626bf4..b8e0078 100644
--- a/modules/parse_amd.c
+++ b/modules/parse_amd.c
@@ -1188,7 +1188,7 @@ static int do_host_mount(struct autofs_point *ap, const char *name,
"hosts", "sun", argc, pargv);
if (!instance) {
instance = master_add_source_instance(source,
- "hosts", "sun", time(NULL), argc, pargv);
+ "hosts", "sun", monotonic_time(NULL), argc, pargv);
if (!instance) {
error(ap->logopt, MODPREFIX
"failed to create source instance for hosts map");
diff --git a/modules/replicated.c b/modules/replicated.c
index f4cae3e..315e300 100644
--- a/modules/replicated.c
+++ b/modules/replicated.c
@@ -69,14 +69,14 @@ void seed_random(void)
fd = open_fd("/dev/urandom", O_RDONLY);
if (fd < 0) {
- srandom(time(NULL));
+ srandom(monotonic_time(NULL));
return;
}
if (read(fd, &seed, sizeof(seed)) != -1)
srandom(seed);
else
- srandom(time(NULL));
+ srandom(monotonic_time(NULL));
close(fd);
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