char *get_ais_data(const AIS_Message *msg)
{
int rc = BZ_OK;
char *uncompressed = NULL;
unsigned int new_size = msg->size + 1;
if(msg->is_compressed == FALSE) {
uncompressed = strdup(msg->data);
} else {
ais_malloc0(uncompressed, new_size);
rc = BZ2_bzBuffToBuffDecompress(
uncompressed, &new_size, (char*)msg->data, msg->compressed_size, 1, 0);
if(rc != BZ_OK) {
ais_info("rc=%d, new=%u expected=%u", rc, new_size, msg->size);
}
AIS_ASSERT(rc == BZ_OK);
AIS_ASSERT(new_size == msg->size);
}
return uncompressed;
}
int
send_plugin_msg(enum crm_ais_msg_types type, const char *host, const char *data)
{
int rc = 0;
int data_len = 0;
AIS_Message *ais_msg = NULL;
int total_size = sizeof(AIS_Message);
AIS_ASSERT(local_nodeid != 0);
if (data != NULL) {
data_len = 1 + strlen(data);
total_size += data_len;
}
ais_malloc0(ais_msg, total_size);
ais_msg->header.size = total_size;
ais_msg->header.error = CS_OK;
ais_msg->header.id = 0;
ais_msg->size = data_len;
ais_msg->sender.type = crm_msg_ais;
if (data != NULL) {
memcpy(ais_msg->data, data, data_len);
}
ais_msg->host.type = type;
ais_msg->host.id = 0;
if (host) {
ais_msg->host.size = strlen(host);
memset(ais_msg->host.uname, 0, MAX_NAME);
memcpy(ais_msg->host.uname, host, ais_msg->host.size);
/* ais_msg->host.id = nodeid_lookup(host); */
} else {
ais_msg->host.type = type;
ais_msg->host.size = 0;
memset(ais_msg->host.uname, 0, MAX_NAME);
}
rc = send_plugin_msg_raw(ais_msg);
ais_free(ais_msg);
return rc;
}
gboolean spawn_child(crm_child_t *child)
{
int lpc = 0;
uid_t uid = 0;
struct rlimit oflimits;
gboolean use_valgrind = FALSE;
const char *devnull = "/dev/null";
const char *env_valgrind = getenv("HA_VALGRIND_ENABLED");
if(child->command == NULL) {
ais_info("Nothing to do for child \"%s\"", child->name);
return TRUE;
}
if(env_valgrind == NULL) {
use_valgrind = FALSE;
} else if(ais_string_to_boolean(env_valgrind)) {
use_valgrind = TRUE;
} else if(strstr(env_valgrind, child->name)) {
use_valgrind = TRUE;
}
if(use_valgrind && strlen(VALGRIND_BIN) == 0) {
ais_warn("Cannot enable valgrind for %s:"
" The location of the valgrind binary is unknown", child->name);
use_valgrind = FALSE;
}
if(child->uid) {
if(pcmk_user_lookup(child->uid, &uid, NULL) < 0) {
ais_err("Invalid uid (%s) specified for %s",
child->uid, child->name);
return FALSE;
}
}
child->pid = fork();
AIS_ASSERT(child->pid != -1);
if(child->pid > 0) {
/* parent */
ais_info("Forked child %d for process %s%s", child->pid, child->name,
use_valgrind?" (valgrind enabled)":"");
} else {
/* Setup the two alternate arg arrarys */
opts_vgrind[0] = ais_strdup(VALGRIND_BIN);
opts_vgrind[1] = ais_strdup(child->command);
opts_default[0] = opts_vgrind[1];
#if 0
/* Dont set the group for now - it prevents connection to the cluster */
if(gid && setgid(gid) < 0) {
ais_perror("Could not set group to %d", gid);
}
#endif
if(uid && setuid(uid) < 0) {
ais_perror("Could not set user to %d (%s)", uid, child->uid);
}
/* Close all open file descriptors */
getrlimit(RLIMIT_NOFILE, &oflimits);
for (; lpc < oflimits.rlim_cur; lpc++) {
close(lpc);
}
(void)open(devnull, O_RDONLY); /* Stdin: fd 0 */
(void)open(devnull, O_WRONLY); /* Stdout: fd 1 */
(void)open(devnull, O_WRONLY); /* Stderr: fd 2 */
setenv("HA_COMPRESSION", "bz2", 1);
setenv("HA_cluster_type", "openais", 1);
setenv("HA_debug", pcmk_env.debug, 1);
setenv("HA_logfacility", pcmk_env.syslog, 1);
setenv("HA_LOGFACILITY", pcmk_env.syslog, 1);
setenv("HA_use_logd", pcmk_env.use_logd, 1);
if(pcmk_env.logfile) {
setenv("HA_debugfile", pcmk_env.logfile, 1);
}
if(use_valgrind) {
(void)execvp(VALGRIND_BIN, opts_vgrind);
} else {
(void)execvp(child->command, opts_default);
}
ais_perror("FATAL: Cannot exec %s", child->command);
exit(100);
}
return TRUE;
}
int update_member(unsigned int id, uint64_t born, uint64_t seq, int32_t votes,
uint32_t procs, const char *uname, const char *state, const char *version)
{
int changed = 0;
crm_node_t *node = NULL;
node = g_hash_table_lookup(membership_list, GUINT_TO_POINTER(id));
if(node == NULL) {
ais_malloc0(node, sizeof(crm_node_t));
ais_info("Creating entry for node %u born on "U64T"", id, seq);
node->id = id;
node->addr = NULL;
node->state = ais_strdup("unknown");
g_hash_table_insert(membership_list, GUINT_TO_POINTER(id), node);
node = g_hash_table_lookup(membership_list, GUINT_TO_POINTER(id));
}
if(seq != 0) {
node->last_seen = seq;
}
if(born != 0 && node->born != born) {
changed = TRUE;
node->born = born;
ais_info("%p Node %u (%s) born on: "U64T, node, id, node->uname, born);
}
if(version != NULL) {
ais_free(node->version);
node->version = ais_strdup(version);
}
if(uname != NULL) {
if(node->uname == NULL || ais_str_eq(node->uname, uname) == FALSE) {
ais_info("%p Node %u now known as %s (was: %s)",
node, id, uname, node->uname);
ais_free(node->uname);
node->uname = ais_strdup(uname);
changed = TRUE;
}
}
if(procs != 0 && procs != node->processes) {
ais_info("Node %s now has process list: %.32x (%u)",
node->uname, procs, procs);
node->processes = procs;
changed = TRUE;
}
if(votes >= 0 && votes != node->votes) {
ais_info("Node %s now has %d quorum votes (was %d)",
node->uname, votes, node->votes);
node->votes = votes;
changed = TRUE;
}
if(state != NULL) {
if(node->state == NULL || ais_str_eq(node->state, state) == FALSE) {
ais_free(node->state);
node->state = ais_strdup(state);
ais_info("Node %u/%s is now: %s",
id, node->uname?node->uname:"unknown", state);
changed = TRUE;
}
}
AIS_ASSERT(node != NULL);
return changed;
}
gboolean
spawn_child(crm_child_t * child)
{
int lpc = 0;
uid_t uid = 0;
gid_t gid = 0;
struct rlimit oflimits;
gboolean use_valgrind = FALSE;
gboolean use_callgrind = FALSE;
const char *devnull = "/dev/null";
const char *env_valgrind = getenv("PCMK_valgrind_enabled");
const char *env_callgrind = getenv("PCMK_callgrind_enabled");
if (child->command == NULL) {
ais_info("Nothing to do for child \"%s\"", child->name);
return TRUE;
}
if (ais_string_to_boolean(env_callgrind)) {
use_callgrind = TRUE;
use_valgrind = TRUE;
} else if (env_callgrind != NULL && strstr(env_callgrind, child->name)) {
use_callgrind = TRUE;
use_valgrind = TRUE;
} else if (ais_string_to_boolean(env_valgrind)) {
use_valgrind = TRUE;
} else if (env_valgrind != NULL && strstr(env_valgrind, child->name)) {
use_valgrind = TRUE;
}
if (use_valgrind && strlen(VALGRIND_BIN) == 0) {
ais_warn("Cannot enable valgrind for %s:"
" The location of the valgrind binary is unknown", child->name);
use_valgrind = FALSE;
}
if (child->uid) {
if (pcmk_user_lookup(child->uid, &uid, &gid) < 0) {
ais_err("Invalid uid (%s) specified for %s", child->uid, child->name);
return FALSE;
}
ais_info("Using uid=%u and group=%u for process %s", uid, gid, child->name);
}
child->pid = fork();
AIS_ASSERT(child->pid != -1);
if (child->pid > 0) {
/* parent */
ais_info("Forked child %d for process %s%s", child->pid, child->name,
use_valgrind ? " (valgrind enabled: " VALGRIND_BIN ")" : "");
} else {
pcmk_setscheduler(child);
/* Setup the two alternate arg arrarys */
opts_vgrind[0] = ais_strdup(VALGRIND_BIN);
if (use_callgrind) {
opts_vgrind[1] = ais_strdup("--tool=callgrind");
opts_vgrind[2] = ais_strdup("--callgrind-out-file=" CRM_STATE_DIR "/callgrind.out.%p");
opts_vgrind[3] = ais_strdup(child->command);
opts_vgrind[4] = NULL;
} else {
opts_vgrind[1] = ais_strdup(child->command);
opts_vgrind[2] = NULL;
opts_vgrind[3] = NULL;
opts_vgrind[4] = NULL;
}
opts_default[0] = ais_strdup(child->command);;
if (uid && initgroups(child->uid, gid) < 0) {
ais_perror("Cannot initialize groups for %s", child->uid);
}
if (uid && setuid(uid) < 0) {
ais_perror("Could not set user to %d (%s)", uid, child->uid);
}
/* Close all open file descriptors */
getrlimit(RLIMIT_NOFILE, &oflimits);
for (; lpc < oflimits.rlim_cur; lpc++) {
close(lpc);
}
(void)open(devnull, O_RDONLY); /* Stdin: fd 0 */
(void)open(devnull, O_WRONLY); /* Stdout: fd 1 */
(void)open(devnull, O_WRONLY); /* Stderr: fd 2 */
/* *INDENT-OFF* */
setenv("HA_COMPRESSION", "bz2", 1);
setenv("HA_cluster_type", "openais", 1);
setenv("HA_debug", pcmk_env.debug, 1);
setenv("HA_logfacility", pcmk_env.syslog, 1);
setenv("HA_LOGFACILITY", pcmk_env.syslog, 1);
setenv("HA_use_logd", pcmk_env.use_logd, 1);
setenv("HA_quorum_type", pcmk_env.quorum, 1);
/* *INDENT-ON* */
if (pcmk_env.logfile) {
setenv("HA_logfile", pcmk_env.logfile, 1);
}
if (use_valgrind) {
(void)execvp(VALGRIND_BIN, opts_vgrind);
} else {
(void)execvp(child->command, opts_default);
}
ais_perror("FATAL: Cannot exec %s", child->command);
exit(100);
}
return TRUE;
}