*/
#include "includes.h"
-#include "lib/events/events.h"
+#include "lib/tevent/tevent.h"
#include "lib/tdb/include/tdb.h"
#include "system/network.h"
#include "system/filesys.h"
#include "system/wait.h"
+#include "system/shmem.h"
#include "../include/ctdb_private.h"
int LogLevel = DEBUG_NOTICE;
endservent();
address->address = talloc_strdup(mem_ctx, str);
+ CTDB_NO_MEMORY(ctdb, address->address);
+
if (se == NULL) {
address->port = CTDB_PORT;
} else {
return p;
}
-
-/*
- update a max latency number
- */
-void ctdb_latency(double *latency, struct timeval t)
-{
- double l = timeval_elapsed(&t);
- if (l > *latency) {
- *latency = l;
- }
-}
-
uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state)
{
- uint32_t id;
-
- id = ctdb->idr_cnt++ & 0xFFFF;
- id |= (idr_get_new(ctdb->idr, state, 0xFFFF)<<16);
+ int id = idr_get_new_above(ctdb->idr, state, ctdb->lastid+1, INT_MAX);
+ if (id < 0) {
+ DEBUG(DEBUG_NOTICE, ("Reqid wrap!\n"));
+ id = idr_get_new(ctdb->idr, state, INT_MAX);
+ }
+ ctdb->lastid = id;
return id;
}
{
void *p;
- p = _idr_find_type(ctdb->idr, (reqid>>16)&0xFFFF, type, location);
+ p = _idr_find_type(ctdb->idr, reqid, type, location);
if (p == NULL) {
- DEBUG(DEBUG_ERR, ("Could not find idr:%u\n",reqid));
+ DEBUG(DEBUG_WARNING, ("Could not find idr:%u\n",reqid));
}
return p;
{
int ret;
- ret = idr_remove(ctdb->idr, (reqid>>16)&0xFFFF);
+ ret = idr_remove(ctdb->idr, reqid);
if (ret != 0) {
DEBUG(DEBUG_ERR, ("Removing idr that does not exist\n"));
}
return d;
}
-#if HAVE_SCHED_H
-#include <sched.h>
-#endif
-/*
- if possible, make this task real time
- */
-void ctdb_set_scheduler(struct ctdb_context *ctdb)
+/* helper function for marshalling multiple records */
+struct ctdb_marshall_buffer *ctdb_marshall_add(TALLOC_CTX *mem_ctx,
+ struct ctdb_marshall_buffer *m,
+ uint64_t db_id,
+ uint32_t reqid,
+ TDB_DATA key,
+ struct ctdb_ltdb_header *header,
+ TDB_DATA data)
{
-#if HAVE_SCHED_SETSCHEDULER
- struct sched_param p;
- if (ctdb->saved_scheduler_param == NULL) {
- ctdb->saved_scheduler_param = talloc_size(ctdb, sizeof(p));
+ struct ctdb_rec_data *r;
+ size_t m_size, r_size;
+ struct ctdb_marshall_buffer *m2;
+
+ r = ctdb_marshall_record(mem_ctx, reqid, key, header, data);
+ if (r == NULL) {
+ talloc_free(m);
+ return NULL;
}
-
- if (sched_getparam(0, (struct sched_param *)ctdb->saved_scheduler_param) == -1) {
- DEBUG(DEBUG_ERR,("Unable to get old scheduler params\n"));
- return;
+
+ if (m == NULL) {
+ m = talloc_zero_size(mem_ctx, offsetof(struct ctdb_marshall_buffer, data));
+ if (m == NULL) {
+ return NULL;
+ }
+ m->db_id = db_id;
}
- p = *(struct sched_param *)ctdb->saved_scheduler_param;
- p.sched_priority = 1;
+ m_size = talloc_get_size(m);
+ r_size = talloc_get_size(r);
- if (sched_setscheduler(0, SCHED_FIFO, &p) == -1) {
- DEBUG(DEBUG_CRIT,("Unable to set scheduler to SCHED_FIFO (%s)\n",
- strerror(errno)));
+ m2 = talloc_realloc_size(mem_ctx, m, m_size + r_size);
+ if (m2 == NULL) {
+ talloc_free(m);
+ return NULL;
+ }
+
+ memcpy(m_size + (uint8_t *)m2, r, r_size);
+
+ talloc_free(r);
+
+ m2->count++;
+
+ return m2;
+}
+
+/* we've finished marshalling, return a data blob with the marshalled records */
+TDB_DATA ctdb_marshall_finish(struct ctdb_marshall_buffer *m)
+{
+ TDB_DATA data;
+ data.dptr = (uint8_t *)m;
+ data.dsize = talloc_get_size(m);
+ return data;
+}
+
+/*
+ loop over a marshalling buffer
+
+ - pass r==NULL to start
+ - loop the number of times indicated by m->count
+*/
+struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
+ uint32_t *reqid,
+ struct ctdb_ltdb_header *header,
+ TDB_DATA *key, TDB_DATA *data)
+{
+ if (r == NULL) {
+ r = (struct ctdb_rec_data *)&m->data[0];
} else {
- DEBUG(DEBUG_NOTICE,("Set scheduler to SCHED_FIFO\n"));
+ r = (struct ctdb_rec_data *)(r->length + (uint8_t *)r);
}
-#endif
+
+ if (reqid != NULL) {
+ *reqid = r->reqid;
+ }
+
+ if (key != NULL) {
+ key->dptr = &r->data[0];
+ key->dsize = r->keylen;
+ }
+ if (data != NULL) {
+ data->dptr = &r->data[r->keylen];
+ data->dsize = r->datalen;
+ if (header != NULL) {
+ data->dptr += sizeof(*header);
+ data->dsize -= sizeof(*header);
+ }
+ }
+
+ if (header != NULL) {
+ if (r->datalen < sizeof(*header)) {
+ return NULL;
+ }
+ *header = *(struct ctdb_ltdb_header *)&r->data[r->keylen];
+ }
+
+ return r;
}
/*
- restore previous scheduler parameters
+ if possible, make this task very high priority
*/
-void ctdb_restore_scheduler(struct ctdb_context *ctdb)
+void ctdb_high_priority(struct ctdb_context *ctdb)
{
-#if HAVE_SCHED_SETSCHEDULER
- if (ctdb->saved_scheduler_param == NULL) {
- ctdb_fatal(ctdb, "No saved scheduler parameters\n");
+ errno = 0;
+ if (nice(-20) == -1 && errno != 0) {
+ DEBUG(DEBUG_WARNING,("Unable to renice self: %s\n",
+ strerror(errno)));
+ } else {
+ DEBUG(DEBUG_NOTICE,("Scheduler says I'm nice: %i\n",
+ getpriority(PRIO_PROCESS, getpid())));
}
- if (sched_setscheduler(0, SCHED_OTHER, (struct sched_param *)ctdb->saved_scheduler_param) == -1) {
- ctdb_fatal(ctdb, "Unable to restore old scheduler parameters\n");
+}
+
+/*
+ make ourselves slightly nicer: eg. a ctdb child.
+ */
+void ctdb_reduce_priority(struct ctdb_context *ctdb)
+{
+ errno = 0;
+ if (nice(10) == -1 && errno != 0) {
+ DEBUG(DEBUG_WARNING,("Unable to lower priority: %s\n",
+ strerror(errno)));
}
-#endif
}
void set_nonblocking(int fd)
}
-/*
- parse a ip:num pair with the given separator
- */
-static bool parse_ip_num(const char *s, struct in_addr *addr, unsigned *num, const char sep)
-{
- const char *p;
- char *endp = NULL;
- char buf[16];
-
- p = strchr(s, sep);
- if (p == NULL) {
- return false;
- }
-
- if (p - s > 15) {
- return false;
- }
-
- *num = strtoul(p+1, &endp, 10);
- if (endp == NULL || *endp != 0) {
- /* trailing garbage */
- return false;
- }
-
- strlcpy(buf, s, 1+p-s);
-
- if (inet_aton(buf, addr) == 0) {
- return false;
- }
-
- return true;
-}
-
-
-static bool parse_ipv4(const char *s, unsigned port, ctdb_sock_addr *saddr)
+bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin)
{
- saddr->ip.sin_family = AF_INET;
- saddr->ip.sin_port = htons(port);
+ sin->sin_family = AF_INET;
+ sin->sin_port = htons(port);
- if (inet_pton(AF_INET, s, &saddr->ip.sin_addr) != 1) {
+ if (inet_pton(AF_INET, s, &sin->sin_addr) != 1) {
DEBUG(DEBUG_ERR, (__location__ " Failed to translate %s into sin_addr\n", s));
return false;
}
return true;
}
-static bool parse_ipv6(const char *s, unsigned port, ctdb_sock_addr *saddr)
+static bool parse_ipv6(const char *s, const char *ifaces, unsigned port, ctdb_sock_addr *saddr)
{
saddr->ip6.sin6_family = AF_INET6;
saddr->ip6.sin6_port = htons(port);
return false;
}
+ if (ifaces && IN6_IS_ADDR_LINKLOCAL(&saddr->ip6.sin6_addr)) {
+ if (strchr(ifaces, ',')) {
+ DEBUG(DEBUG_ERR, (__location__ " Link local address %s "
+ "is specified for multiple ifaces %s\n",
+ s, ifaces));
+ return false;
+ }
+ saddr->ip6.sin6_scope_id = if_nametoindex(ifaces);
+ }
+
return true;
}
/*
/* now is this a ipv4 or ipv6 address ?*/
- p = index(s, ':');
- if (p == NULL) {
- ret = parse_ipv4(s, port, saddr);
- } else {
- ret = parse_ipv6(s, port, saddr);
- }
+ ret = parse_ip(s, NULL, port, saddr);
talloc_free(tmp_ctx);
return ret;
/*
parse an ip
*/
-bool parse_ip(const char *addr, ctdb_sock_addr *saddr)
+bool parse_ip(const char *addr, const char *ifaces, unsigned port, ctdb_sock_addr *saddr)
{
char *p;
bool ret;
/* now is this a ipv4 or ipv6 address ?*/
p = index(addr, ':');
if (p == NULL) {
- ret = parse_ipv4(addr, 0, saddr);
+ ret = parse_ipv4(addr, port, &saddr->ip);
} else {
- ret = parse_ipv6(addr, 0, saddr);
+ ret = parse_ipv6(addr, ifaces, port, saddr);
}
return ret;
/*
parse a ip/mask pair
*/
-bool parse_ip_mask(const char *s, struct sockaddr_in *ip, unsigned *mask)
+bool parse_ip_mask(const char *str, const char *ifaces, ctdb_sock_addr *addr, unsigned *mask)
{
- ZERO_STRUCT(*ip);
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ char *s, *p;
+ char *endp = NULL;
+ bool ret;
- if (!parse_ip_num(s, &ip->sin_addr, mask, '/')) {
+ ZERO_STRUCT(*addr);
+ s = talloc_strdup(tmp_ctx, str);
+ if (s == NULL) {
+ DEBUG(DEBUG_ERR, (__location__ " Failed strdup()\n"));
+ talloc_free(tmp_ctx);
return false;
}
- if (*mask > 32) {
+
+ p = rindex(s, '/');
+ if (p == NULL) {
+ DEBUG(DEBUG_ERR, (__location__ " This addr: %s does not contain a mask\n", s));
+ talloc_free(tmp_ctx);
return false;
}
- ip->sin_family = AF_INET;
- ip->sin_port = 0;
- return true;
+
+ *mask = strtoul(p+1, &endp, 10);
+ if (endp == NULL || *endp != 0) {
+ /* trailing garbage */
+ DEBUG(DEBUG_ERR, (__location__ " Trailing garbage after the mask in %s\n", s));
+ talloc_free(tmp_ctx);
+ return false;
+ }
+ *p = 0;
+
+
+ /* now is this a ipv4 or ipv6 address ?*/
+ ret = parse_ip(s, ifaces, 0, addr);
+
+ talloc_free(tmp_ctx);
+ return ret;
}
/*
- compare two sockaddr_in structures - matching only on IP
- */
-bool ctdb_same_ipv4(const struct sockaddr_in *ip1, const struct sockaddr_in *ip2)
+ This is used to canonicalize a ctdb_sock_addr structure.
+*/
+void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip)
{
- return ip1->sin_family == ip2->sin_family &&
- ip1->sin_addr.s_addr == ip2->sin_addr.s_addr;
+ char prefix[12] = { 0,0,0,0,0,0,0,0,0,0,0xff,0xff };
+
+ memcpy(cip, ip, sizeof (*cip));
+
+ if ( (ip->sa.sa_family == AF_INET6)
+ && !memcmp(&ip->ip6.sin6_addr, prefix, 12)) {
+ memset(cip, 0, sizeof(*cip));
+#ifdef HAVE_SOCK_SIN_LEN
+ cip->ip.sin_len = sizeof(*cip);
+#endif
+ cip->ip.sin_family = AF_INET;
+ cip->ip.sin_port = ip->ip6.sin6_port;
+ memcpy(&cip->ip.sin_addr, &ip->ip6.sin6_addr.s6_addr32[3], 4);
+ }
}
-bool ctdb_same_ip(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2)
+bool ctdb_same_ip(const ctdb_sock_addr *tip1, const ctdb_sock_addr *tip2)
{
- if (ip1->sa.sa_family != ip2->sa.sa_family) {
+ ctdb_sock_addr ip1, ip2;
+
+ ctdb_canonicalize_ip(tip1, &ip1);
+ ctdb_canonicalize_ip(tip2, &ip2);
+
+ if (ip1.sa.sa_family != ip2.sa.sa_family) {
return false;
}
- switch (ip1->sa.sa_family) {
+ switch (ip1.sa.sa_family) {
case AF_INET:
- return ip1->ip.sin_addr.s_addr == ip2->ip.sin_addr.s_addr;
+ return ip1.ip.sin_addr.s_addr == ip2.ip.sin_addr.s_addr;
case AF_INET6:
- return !memcmp(&ip1->ip6.sin6_addr.s6_addr[0],
- &ip2->ip6.sin6_addr.s6_addr[0],
+ return !memcmp(&ip1.ip6.sin6_addr.s6_addr[0],
+ &ip2.ip6.sin6_addr.s6_addr[0],
16);
default:
- DEBUG(DEBUG_ERR, (__location__ " CRITICAL Can not compare sockaddr structures of type %u\n", ip1->sa.sa_family));
+ DEBUG(DEBUG_ERR, (__location__ " CRITICAL Can not compare sockaddr structures of type %u\n", ip1.sa.sa_family));
return false;
}
}
/*
- compare two sockaddr_in structures
+ compare two ctdb_sock_addr structures
*/
-bool ctdb_same_sockaddr(const struct sockaddr_in *ip1, const struct sockaddr_in *ip2)
+bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2)
{
- return ctdb_same_ipv4(ip1, ip2) && ip1->sin_port == ip2->sin_port;
+ return ctdb_same_ip(ip1, ip2) && ip1->ip.sin_port == ip2->ip.sin_port;
}
+char *ctdb_addr_to_str(ctdb_sock_addr *addr)
+{
+ static char cip[128] = "";
+
+ switch (addr->sa.sa_family) {
+ case AF_INET:
+ inet_ntop(addr->ip.sin_family, &addr->ip.sin_addr, cip, sizeof(cip));
+ break;
+ case AF_INET6:
+ inet_ntop(addr->ip6.sin6_family, &addr->ip6.sin6_addr, cip, sizeof(cip));
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " ERROR, unknown family %u\n", addr->sa.sa_family));
+ }
+ return cip;
+}
+
+unsigned ctdb_addr_to_port(ctdb_sock_addr *addr)
+{
+ switch (addr->sa.sa_family) {
+ case AF_INET:
+ return ntohs(addr->ip.sin_port);
+ break;
+ case AF_INET6:
+ return ntohs(addr->ip6.sin6_port);
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " ERROR, unknown family %u\n", addr->sa.sa_family));
+ }
+
+ return 0;
+}
void ctdb_block_signal(int signum)
{
sigaddset(&set,signum);
sigprocmask(SIG_UNBLOCK,&set,NULL);
}
+
+struct debug_levels debug_levels[] = {
+ {DEBUG_EMERG, "EMERG"},
+ {DEBUG_ALERT, "ALERT"},
+ {DEBUG_CRIT, "CRIT"},
+ {DEBUG_ERR, "ERR"},
+ {DEBUG_WARNING, "WARNING"},
+ {DEBUG_NOTICE, "NOTICE"},
+ {DEBUG_INFO, "INFO"},
+ {DEBUG_DEBUG, "DEBUG"},
+ {0, NULL}
+};
+
+const char *get_debug_by_level(int32_t level)
+{
+ int i;
+
+ for (i=0; debug_levels[i].description != NULL; i++) {
+ if (debug_levels[i].level == level) {
+ return debug_levels[i].description;
+ }
+ }
+ return "Unknown";
+}
+
+int32_t get_debug_by_desc(const char *desc)
+{
+ int i;
+
+ for (i=0; debug_levels[i].description != NULL; i++) {
+ if (!strcmp(debug_levels[i].description, desc)) {
+ return debug_levels[i].level;
+ }
+ }
+
+ return DEBUG_ERR;
+}
+
+/* we don't lock future pages here; it would increase the chance that
+ * we'd fail to mmap later on. */
+void ctdb_lockdown_memory(struct ctdb_context *ctdb)
+{
+#ifdef HAVE_MLOCKALL
+ /* Extra stack, please! */
+ char dummy[10000];
+ memset(dummy, 0, sizeof(dummy));
+
+ if (ctdb->valgrinding) {
+ return;
+ }
+
+ /* Avoid compiler optimizing out dummy. */
+ mlock(dummy, sizeof(dummy));
+ if (mlockall(MCL_CURRENT) != 0) {
+ DEBUG(DEBUG_WARNING,("Failed to lock memory: %s'\n",
+ strerror(errno)));
+ }
+#endif
+}
+
+const char *ctdb_eventscript_call_names[] = {
+ "init",
+ "setup",
+ "startup",
+ "startrecovery",
+ "recovered",
+ "takeip",
+ "releaseip",
+ "stopped",
+ "monitor",
+ "status",
+ "shutdown",
+ "reload",
+ "updateip",
+ "ipreallocated"
+};
git.samba.org / metze / ctdb / wip.git / blobdiff