void rl_rcv_bin(int packet_type, struct receive_info *ri)
{
rl_algo_t algo;
int limit;
int counter;
str name;
int index;
char *ip;
unsigned short port;
rl_pipe_t **pipe;
unsigned int hash_idx;
time_t now;
if (packet_type != RL_PIPE_COUNTER)
return;
/* match the server */
for (index = 0; index < rl_dests_nr; index++) {
if (su_cmp(&ri->src_su, &rl_dests[index].to))
break;
}
if (index == rl_dests_nr) {
get_su_info(&ri->src_su.s, ip, port);
LM_WARN("received bin packet from unknown source: %s:%hu\n",
ip, port);
return;
}
now = time(0);
*rl_dests[index].last_msg = now;
for (;;) {
if (bin_pop_str(&name) == 1)
break; /* pop'ed all pipes */
if (bin_pop_int(&algo) < 0) {
LM_ERR("cannot pop pipe's algorithm\n");
return;
}
if (bin_pop_int(&limit) < 0) {
LM_ERR("cannot pop pipe's limit\n");
return;
}
if (bin_pop_int(&counter) < 0) {
LM_ERR("cannot pop pipe's counter\n");
return;
}
hash_idx = RL_GET_INDEX(name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* if the pipe does not exist, alocate it in case we need it later */
*pipe = shm_malloc(sizeof(rl_pipe_t) +
rl_dests_nr * sizeof(rl_repl_counter_t));
if (!*pipe) {
LM_ERR("no more shm memory\n");
goto release;
}
memset(*pipe, 0, sizeof(rl_pipe_t) +
rl_dests_nr * sizeof(rl_repl_counter_t));
(*pipe)->dsts = (rl_repl_counter_t *)((*pipe) + 1);
LM_DBG("Pipe %.*s doesn't exist, but was created %p\n",
name.len, name.s, *pipe);
(*pipe)->algo = algo;
(*pipe)->limit = limit;
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name.len, name.s, *pipe, (*pipe)->last_used);
if ((*pipe)->algo != algo)
LM_WARN("algorithm %d different from the initial one %d for "
"pipe %.*s", algo, (*pipe)->algo, name.len, name.s);
if ((*pipe)->limit != limit)
LM_WARN("limit %d different from the initial one %d for "
"pipe %.*s", limit, (*pipe)->limit, name.len, name.s);
}
/* set the last used time */
(*pipe)->last_used = time(0);
/* set the destination's counter */
(*pipe)->dsts[index].counter = counter;
(*pipe)->dsts[index].update = now;
RL_RELEASE_LOCK(hash_idx);
}
return;
release:
RL_RELEASE_LOCK(hash_idx);
}
int w_rl_check_3(struct sip_msg *_m, char *_n, char *_l, char *_a)
{
str name;
int limit = 0, ret = 1, should_update = 0;
str algorithm;
unsigned int hash_idx;
rl_pipe_t **pipe;
rl_algo_t algo = -1;
/* retrieve and check parameters */
if (!_n || !_l) {
LM_ERR("invalid parameters\n");
goto end;
}
if (fixup_get_svalue(_m, (gparam_p)_n, &name) < 0) {
LM_ERR("cannot retrieve identifier\n");
goto end;
}
if (fixup_get_ivalue(_m, (gparam_p)_l, &limit) < 0) {
LM_ERR("cannot retrieve limit\n");
goto end;
}
algorithm.s = 0;
if (!_a || fixup_get_svalue(_m, (gparam_p)_a, &algorithm) < 0 ||
(algo = get_rl_algo(algorithm)) < 0) {
algo = PIPE_ALGO_NOP;
}
/* get limit for FEEDBACK algorithm */
if (algo == PIPE_ALGO_FEEDBACK) {
lock_get(rl_lock);
if (*rl_feedback_limit) {
if (*rl_feedback_limit != limit) {
LM_WARN("FEEDBACK limit should be the same for all pipes, but"
" new limit %d differs - setting to %d\n",
limit, *rl_feedback_limit);
limit = *rl_feedback_limit;
}
} else {
if (limit <= 0 || limit >= 100) {
LM_ERR("invalid limit for FEEDBACK algorithm "
"(must be between 0 and 100)\n");
lock_release(rl_lock);
goto end;
}
*rl_feedback_limit = limit;
pid_setpoint_limit(limit);
}
lock_release(rl_lock);
}
hash_idx = RL_GET_INDEX(name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* allocate new pipe */
*pipe = shm_malloc(sizeof(rl_pipe_t) +
rl_dests_nr * sizeof(rl_repl_counter_t));
if (!*pipe) {
LM_ERR("no more shm memory\n");
goto release;
}
memset(*pipe, 0, sizeof(rl_pipe_t) + rl_dests_nr * sizeof(rl_repl_counter_t));
(*pipe)->dsts = (rl_repl_counter_t *)((*pipe) + 1);
LM_DBG("Pipe %.*s doens't exist, but was created %p\n",
name.len, name.s, *pipe);
if (algo == PIPE_ALGO_NETWORK)
should_update = 1;
(*pipe)->algo = (algo == PIPE_ALGO_NOP) ? rl_default_algo : algo;
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name.len, name.s, *pipe, (*pipe)->last_used);
if (algo != PIPE_ALGO_NOP && (*pipe)->algo != algo) {
LM_WARN("algorithm %d different from the initial one %d for pipe "
"%.*s", algo, (*pipe)->algo, name.len, name.s);
}
}
/* set/update the limit */
(*pipe)->limit = limit;
/* set the last used time */
(*pipe)->last_used = time(0);
if (RL_USE_CDB(*pipe)) {
/* release the counter for a while */
if (rl_change_counter(&name, *pipe, 1) < 0) {
LM_ERR("cannot increase counter\n");
goto end;
}
} else {
(*pipe)->counter++;
}
ret = rl_pipe_check(*pipe);
LM_DBG("Pipe %.*s counter:%d load:%d limit:%d should %sbe blocked (%p)\n",
name.len, name.s, (*pipe)->counter, (*pipe)->load,
(*pipe)->limit, ret == 1? "NOT " : "", *pipe);
release:
RL_RELEASE_LOCK(hash_idx);
if (should_update) {
lock_get(rl_lock);
(*rl_network_count)++;
lock_release(rl_lock);
}
end:
return ret;
}
void rl_rcv_bin(bin_packet_t *packet)
{
rl_algo_t algo;
int limit;
int counter;
str name;
rl_pipe_t **pipe;
unsigned int hash_idx;
time_t now;
rl_repl_counter_t *destination;
if (packet->type != RL_PIPE_COUNTER) {
LM_WARN("Invalid binary packet command: %d (from node: %d in cluster: %d)\n",
packet->type, packet->src_id, rl_repl_cluster);
return;
}
now = time(0);
for (;;) {
if (bin_pop_str(packet, &name) == 1)
break; /* pop'ed all pipes */
if (bin_pop_int(packet, &algo) < 0) {
LM_ERR("cannot pop pipe's algorithm\n");
return;
}
if (bin_pop_int(packet, &limit) < 0) {
LM_ERR("cannot pop pipe's limit\n");
return;
}
if (bin_pop_int(packet, &counter) < 0) {
LM_ERR("cannot pop pipe's counter\n");
return;
}
hash_idx = RL_GET_INDEX(name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* if the pipe does not exist, allocate it in case we need it later */
if (!(*pipe = rl_create_pipe(limit, algo)))
goto release;
LM_DBG("Pipe %.*s doesn't exist, but was created %p\n",
name.len, name.s, *pipe);
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name.len, name.s, *pipe, (*pipe)->last_used);
if ((*pipe)->algo != algo)
LM_WARN("algorithm %d different from the initial one %d for "
"pipe %.*s", algo, (*pipe)->algo, name.len, name.s);
/*
* XXX: do not output these warnings since they can be triggered
* when a custom limit is used
if ((*pipe)->limit != limit)
LM_WARN("limit %d different from the initial one %d for "
"pipe %.*s", limit, (*pipe)->limit, name.len, name.s);
*/
}
/* set the last used time */
(*pipe)->last_used = time(0);
/* set the destination's counter */
destination = find_destination(*pipe, packet->src_id);
if (!destination)
goto release;
destination->counter = counter;
destination->update = now;
RL_RELEASE_LOCK(hash_idx);
}
return;
release:
RL_RELEASE_LOCK(hash_idx);
}
int w_rl_check(struct sip_msg *_m, str *name, int *limit, str *algorithm)
{
int ret = 1, should_update = 0;
unsigned int hash_idx;
rl_pipe_t **pipe;
rl_algo_t algo = -1;
if (!algorithm || (algo = get_rl_algo(*algorithm)) == PIPE_ALGO_NOP) {
algo = PIPE_ALGO_NOP;
}
/* get limit for FEEDBACK algorithm */
if (algo == PIPE_ALGO_FEEDBACK) {
lock_get(rl_lock);
if (*rl_feedback_limit) {
if (*rl_feedback_limit != *limit) {
LM_WARN("FEEDBACK limit should be the same for all pipes, but"
" new limit %d differs - setting to %d\n",
*limit, *rl_feedback_limit);
*limit = *rl_feedback_limit;
}
} else {
if (*limit <= 0 || *limit >= 100) {
LM_ERR("invalid limit for FEEDBACK algorithm "
"(must be between 0 and 100)\n");
lock_release(rl_lock);
goto end;
}
*rl_feedback_limit = *limit;
pid_setpoint_limit(*limit);
}
lock_release(rl_lock);
}
hash_idx = RL_GET_INDEX(*name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, *name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* allocate new pipe */
if (!(*pipe = rl_create_pipe(*limit, algo)))
goto release;
LM_DBG("Pipe %.*s doesn't exist, but was created %p\n",
name->len, name->s, *pipe);
if ((*pipe)->algo == PIPE_ALGO_NETWORK)
should_update = 1;
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name->len, name->s, *pipe, (*pipe)->last_used);
if (algo != PIPE_ALGO_NOP && (*pipe)->algo != algo) {
LM_WARN("algorithm %d different from the initial one %d for pipe "
"%.*s", algo, (*pipe)->algo, name->len, name->s);
}
/* update the limit */
(*pipe)->limit = *limit;
}
/* set the last used time */
(*pipe)->last_used = time(0);
if (RL_USE_CDB(*pipe)) {
/* release the counter for a while */
if (rl_change_counter(name, *pipe, 1) < 0) {
LM_ERR("cannot increase counter\n");
goto release;
}
} else {
(*pipe)->counter++;
}
ret = rl_pipe_check(*pipe);
LM_DBG("Pipe %.*s counter:%d load:%d limit:%d should %sbe blocked (%p)\n",
name->len, name->s, (*pipe)->counter, (*pipe)->load,
(*pipe)->limit, ret == 1 ? "NOT " : "", *pipe);
release:
RL_RELEASE_LOCK(hash_idx);
if (should_update) {
lock_get(rl_lock);
(*rl_network_count)++;
lock_release(rl_lock);
}
end:
return ret;
}
void rl_rcv_bin(int packet_type, struct receive_info *ri, int server_id)
{
rl_algo_t algo;
int limit;
int counter;
str name;
char *ip;
unsigned short port;
rl_pipe_t **pipe;
unsigned int hash_idx;
time_t now;
rl_repl_counter_t *destination;
if (packet_type == SERVER_TEMP_DISABLED) {
get_su_info(&ri->src_su.s, ip, port);
LM_WARN("server: %s:%hu temporary disabled\n", ip, port);
return;
}
if (packet_type == SERVER_TIMEOUT) {
LM_WARN("server with clustererer id %d timeout\n", server_id);
return;
}
if(get_bin_pkg_version() != BIN_VERSION){
LM_ERR("incompatible bin protocol version\n");
return;
}
if (packet_type != RL_PIPE_COUNTER)
return;
if (packet_type != RL_PIPE_COUNTER)
return;
now = time(0);
for (;;) {
if (bin_pop_str(&name) == 1)
break; /* pop'ed all pipes */
if (bin_pop_int(&algo) < 0) {
LM_ERR("cannot pop pipe's algorithm\n");
return;
}
if (bin_pop_int(&limit) < 0) {
LM_ERR("cannot pop pipe's limit\n");
return;
}
if (bin_pop_int(&counter) < 0) {
LM_ERR("cannot pop pipe's counter\n");
return;
}
hash_idx = RL_GET_INDEX(name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* if the pipe does not exist, alocate it in case we need it later */
*pipe = shm_malloc(sizeof(rl_pipe_t));
if (!*pipe) {
LM_ERR("no more shm memory\n");
goto release;
}
memset(*pipe, 0, sizeof(rl_pipe_t));
LM_DBG("Pipe %.*s doesn't exist, but was created %p\n",
name.len, name.s, *pipe);
(*pipe)->algo = algo;
(*pipe)->limit = limit;
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name.len, name.s, *pipe, (*pipe)->last_used);
if ((*pipe)->algo != algo)
LM_WARN("algorithm %d different from the initial one %d for "
"pipe %.*s", algo, (*pipe)->algo, name.len, name.s);
if ((*pipe)->limit != limit)
LM_WARN("limit %d different from the initial one %d for "
"pipe %.*s", limit, (*pipe)->limit, name.len, name.s);
}
/* set the last used time */
(*pipe)->last_used = time(0);
/* set the destination's counter */
destination = find_destination(*pipe, server_id);
destination->counter = counter;
destination->update = now;
RL_RELEASE_LOCK(hash_idx);
}
return;
release:
RL_RELEASE_LOCK(hash_idx);
}
void rl_rcv_bin(int packet_type, struct receive_info *ri)
{
rl_algo_t algo;
int limit;
int counter;
int rc;
int server_id;
str name;
char *ip;
unsigned short port;
rl_pipe_t **pipe;
unsigned int hash_idx;
time_t now;
rl_repl_counter_t *destination;
LM_DBG("received a binary packet [%d]!\n", packet_type);
if (packet_type != RL_PIPE_COUNTER)
return;
rc = bin_pop_int(&server_id);
if (rc < 0)
return;
if (!clusterer_api.check(accept_repl_pipes, &ri->src_su, server_id, ri->proto)){
get_su_info(&ri->src_su.s, ip, port);
LM_WARN("received bin packet from unknown source: %s:%hu\n",
ip, port);
return;
}
now = time(0);
for (;;) {
if (bin_pop_str(&name) == 1)
break; /* pop'ed all pipes */
if (bin_pop_int(&algo) < 0) {
LM_ERR("cannot pop pipe's algorithm\n");
return;
}
if (bin_pop_int(&limit) < 0) {
LM_ERR("cannot pop pipe's limit\n");
return;
}
if (bin_pop_int(&counter) < 0) {
LM_ERR("cannot pop pipe's counter\n");
return;
}
hash_idx = RL_GET_INDEX(name);
RL_GET_LOCK(hash_idx);
/* try to get the value */
pipe = RL_GET_PIPE(hash_idx, name);
if (!pipe) {
LM_ERR("cannot get the index\n");
goto release;
}
if (!*pipe) {
/* if the pipe does not exist, alocate it in case we need it later */
*pipe = shm_malloc(sizeof(rl_pipe_t));
if (!*pipe) {
LM_ERR("no more shm memory\n");
goto release;
}
memset(*pipe, 0, sizeof(rl_pipe_t));
LM_DBG("Pipe %.*s doesn't exist, but was created %p\n",
name.len, name.s, *pipe);
(*pipe)->algo = algo;
(*pipe)->limit = limit;
} else {
LM_DBG("Pipe %.*s found: %p - last used %lu\n",
name.len, name.s, *pipe, (*pipe)->last_used);
if ((*pipe)->algo != algo)
LM_WARN("algorithm %d different from the initial one %d for "
"pipe %.*s", algo, (*pipe)->algo, name.len, name.s);
if ((*pipe)->limit != limit)
LM_WARN("limit %d different from the initial one %d for "
"pipe %.*s", limit, (*pipe)->limit, name.len, name.s);
}
/* set the last used time */
(*pipe)->last_used = time(0);
/* set the destination's counter */
destination = find_destination(*pipe, server_id);
destination->counter = counter;
destination->update = now;
RL_RELEASE_LOCK(hash_idx);
}
return;
release:
RL_RELEASE_LOCK(hash_idx);
}