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-rw-r--r--source3/include/smbldap.h2
-rw-r--r--source3/lib/smbldap.c167
2 files changed, 73 insertions, 96 deletions
diff --git a/source3/include/smbldap.h b/source3/include/smbldap.h
index b94577178b..6046af464e 100644
--- a/source3/include/smbldap.h
+++ b/source3/include/smbldap.h
@@ -154,6 +154,6 @@ struct smbldap_state {
struct smbldap_state;
-#define LDAP_CONNECT_DEFAULT_TIMEOUT 5
+#define LDAP_CONNECT_DEFAULT_TIMEOUT 15
#endif /* _SMBLDAP_H */
diff --git a/source3/lib/smbldap.c b/source3/lib/smbldap.c
index a1a3117d88..0980b763ad 100644
--- a/source3/lib/smbldap.c
+++ b/source3/lib/smbldap.c
@@ -879,37 +879,69 @@ static NTSTATUS smbldap_close(struct smbldap_state *ldap_state)
return NT_STATUS_OK;
}
-int smbldap_retry_open(struct smbldap_state *ldap_state, int *attempts)
+static BOOL got_alarm;
+
+static void (*old_handler)(int);
+
+static void gotalarm_sig(int dummy)
{
- int rc;
+ got_alarm = True;
+}
- SMB_ASSERT(ldap_state && attempts);
-
- if (*attempts != 0) {
- unsigned int sleep_time;
- uint8 rand_byte;
-
- /* Sleep for a random timeout */
- rand_byte = (char)(sys_random());
-
- sleep_time = (((*attempts)*(*attempts))/2)*rand_byte*2;
- /* we retry after (0.5, 1, 2, 3, 4.5, 6) seconds
- on average.
- */
- DEBUG(3, ("Sleeping for %u milliseconds before reconnecting\n",
- sleep_time));
- smb_msleep(sleep_time);
+static int another_ldap_try(struct smbldap_state *ldap_state, int *rc,
+ int *attempts, time_t endtime)
+{
+ time_t now = time(NULL);
+ int open_rc = LDAP_SERVER_DOWN;
+
+ if (*rc != LDAP_SERVER_DOWN)
+ goto no_next;
+
+ now = time(NULL);
+
+ if (now >= endtime) {
+ smbldap_close(ldap_state);
+ *rc = LDAP_TIMEOUT;
+ goto no_next;
}
- (*attempts)++;
- if ((rc = smbldap_open(ldap_state))) {
- DEBUG(1,("Connection to LDAP Server failed for the %d try!\n",*attempts));
- return rc;
- }
-
- return LDAP_SUCCESS;
-}
+ if (*attempts == 0) {
+ got_alarm = False;
+ old_handler = CatchSignal(SIGALRM, gotalarm_sig);
+ alarm(endtime - now);
+ }
+
+ while (1) {
+
+ if (*attempts != 0)
+ smb_msleep(1000);
+ *attempts += 1;
+
+ open_rc = smbldap_open(ldap_state);
+
+ if (open_rc == LDAP_SUCCESS) {
+ ldap_state->last_use = now;
+ return True;
+ }
+
+ if (got_alarm) {
+ *rc = LDAP_TIMEOUT;
+ break;
+ }
+
+ if (open_rc != LDAP_SUCCESS) {
+ DEBUG(1, ("Connection to LDAP server failed for the "
+ "%d try!\n", *attempts));
+ }
+ }
+
+ no_next:
+ CatchSignal(SIGALRM, old_handler);
+ alarm(0);
+ ldap_state->last_use = now;
+ return False;
+}
/*********************************************************************
********************************************************************/
@@ -922,6 +954,7 @@ int smbldap_search(struct smbldap_state *ldap_state,
int rc = LDAP_SERVER_DOWN;
int attempts = 0;
char *utf8_filter;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
SMB_ASSERT(ldap_state);
@@ -955,22 +988,10 @@ int smbldap_search(struct smbldap_state *ldap_state,
return LDAP_NO_MEMORY;
}
- while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) {
-
- if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS)
- continue;
-
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
rc = ldap_search_s(ldap_state->ldap_struct, base, scope,
utf8_filter, attrs, attrsonly, res);
- }
- if (rc == LDAP_SERVER_DOWN) {
- DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO));
- smbldap_close(ldap_state);
- }
-
- ldap_state->last_use = time(NULL);
-
SAFE_FREE(utf8_filter);
return rc;
}
@@ -980,6 +1001,7 @@ int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *at
int rc = LDAP_SERVER_DOWN;
int attempts = 0;
char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
SMB_ASSERT(ldap_state);
@@ -989,21 +1011,9 @@ int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *at
return LDAP_NO_MEMORY;
}
- while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) {
-
- if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS)
- continue;
-
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
rc = ldap_modify_s(ldap_state->ldap_struct, utf8_dn, attrs);
- }
-
- if (rc == LDAP_SERVER_DOWN) {
- DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO));
- smbldap_close(ldap_state);
- }
-
- ldap_state->last_use = time(NULL);
-
+
SAFE_FREE(utf8_dn);
return rc;
}
@@ -1013,6 +1023,7 @@ int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs
int rc = LDAP_SERVER_DOWN;
int attempts = 0;
char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
SMB_ASSERT(ldap_state);
@@ -1022,21 +1033,9 @@ int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs
return LDAP_NO_MEMORY;
}
- while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) {
-
- if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS)
- continue;
-
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
rc = ldap_add_s(ldap_state->ldap_struct, utf8_dn, attrs);
- }
- if (rc == LDAP_SERVER_DOWN) {
- DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO));
- smbldap_close(ldap_state);
- }
-
- ldap_state->last_use = time(NULL);
-
SAFE_FREE(utf8_dn);
return rc;
}
@@ -1046,6 +1045,7 @@ int smbldap_delete(struct smbldap_state *ldap_state, const char *dn)
int rc = LDAP_SERVER_DOWN;
int attempts = 0;
char *utf8_dn;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
SMB_ASSERT(ldap_state);
@@ -1055,21 +1055,9 @@ int smbldap_delete(struct smbldap_state *ldap_state, const char *dn)
return LDAP_NO_MEMORY;
}
- while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) {
-
- if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS)
- continue;
-
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
rc = ldap_delete_s(ldap_state->ldap_struct, utf8_dn);
- }
- if (rc == LDAP_SERVER_DOWN) {
- DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO));
- smbldap_close(ldap_state);
- }
-
- ldap_state->last_use = time(NULL);
-
SAFE_FREE(utf8_dn);
return rc;
}
@@ -1081,26 +1069,15 @@ int smbldap_extended_operation(struct smbldap_state *ldap_state,
{
int rc = LDAP_SERVER_DOWN;
int attempts = 0;
+ time_t endtime = time(NULL)+lp_ldap_timeout();
if (!ldap_state)
return (-1);
- while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) {
-
- if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS)
- continue;
-
- rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid, reqdata,
- serverctrls, clientctrls, retoidp, retdatap);
- }
-
- if (rc == LDAP_SERVER_DOWN) {
- DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO));
- smbldap_close(ldap_state);
- }
-
- ldap_state->last_use = time(NULL);
-
+ while (another_ldap_try(ldap_state, &rc, &attempts, endtime))
+ rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid,
+ reqdata, serverctrls,
+ clientctrls, retoidp, retdatap);
return rc;
}
generated by cgit (git 2.34.1) at 2024-07-02 14:34:33 +0000