static void
asc_process_verbosity(struct conn *c, struct token *token, int ntoken)
{
uint32_t level;
asc_set_noreply_maybe(c, token, ntoken);
if (ntoken != 3 && ntoken != 4) {
log_hexdump(LOG_NOTICE, c->req, c->req_len, "client error on c %d for "
"req of type %d with %d invalid tokens", c->sd,
c->req_type, ntoken);
asc_write_client_error(c);
return;
}
if (!mc_strtoul(token[TOKEN_SUBCOMMAND].val, &level)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d with "
"invalid level '%.*s'", c->sd, c->req_type,
token[TOKEN_SUBCOMMAND].len, token[TOKEN_SUBCOMMAND].val);
asc_write_client_error(c);
return;
}
log_level_set(level);
asc_write_ok(c);
}
static void
asc_process_stats(struct conn *c, struct token *token, int ntoken)
{
struct token *t = &token[TOKEN_SUBCOMMAND];
if (!stats_enabled()) {
log_warn("server error on c %d for req of type %d because stats is "
"disabled", c->sd, c->req_type);
asc_write_server_error(c);
return;
}
if (!asc_ntoken_valid(c, ntoken)) {
log_hexdump(LOG_NOTICE, c->req, c->req_len, "client error on c %d for "
"req of type %d with %d invalid tokens", c->sd,
c->req_type, ntoken);
asc_write_client_error(c);
return;
}
if (ntoken == 2) {
stats_default(c);
} else if (strncmp(t->val, "reset", t->len) == 0) {
log_warn("server error on c %d for req of type %d because stats reset "
"is not supported", c->sd, c->req_type);
asc_write_server_error(c);
return;
} else if (strncmp(t->val, "settings", t->len) == 0) {
stats_settings(c);
} else if (strncmp(t->val, "cachedump", t->len) == 0) {
char *buf;
unsigned int bytes, id, limit = 0;
if (ntoken < 5) {
log_hexdump(LOG_NOTICE, c->req, c->req_len, "client error on c %d "
"for req of type %d with %d invalid tokens", c->sd,
c->req_type, ntoken);
asc_write_client_error(c);
return;
}
if (!mc_strtoul(token[TOKEN_CACHEDUMP_ID].val, &id) ||
!mc_strtoul(token[TOKEN_CACHEDUMP_LIMIT].val, &limit)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d "
"because either id '%.*s' or limit '%.*s' is invalid",
c->sd, c->req_type, token[TOKEN_CACHEDUMP_ID].len,
token[TOKEN_CACHEDUMP_ID].val, token[TOKEN_CACHEDUMP_LIMIT].len,
token[TOKEN_CACHEDUMP_LIMIT].val);
asc_write_client_error(c);
return;
}
if (id < SLABCLASS_MIN_ID || id > SLABCLASS_MAX_ID) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d "
"because %d is an illegal slab id", c->sd, c->req_type,
id);
asc_write_client_error(c);
return;
}
buf = item_cache_dump(id, limit, &bytes);
core_write_and_free(c, buf, bytes);
return;
} else {
/*
* Getting here means that the sub command is either engine specific
* or is invalid. query the engine and see
*/
if (strncmp(t->val, "slabs", t->len) == 0) {
stats_slabs(c);
} else if (strncmp(t->val, "sizes", t->len) == 0) {
stats_sizes(c);
} else {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d with "
"invalid stats subcommand '%.*s", c->sd, c->req_type,
t->len, t->val);
asc_write_client_error(c);
return;
}
if (c->stats.buffer == NULL) {
log_warn("server error on c %d for req of type %d because of oom "
"writing stats", c->sd, c->req_type);
asc_write_server_error(c);
} else {
core_write_and_free(c, c->stats.buffer, c->stats.offset);
c->stats.buffer = NULL;
}
return;
}
/* append terminator and start the transfer */
stats_append(c, NULL, 0, NULL, 0);
if (c->stats.buffer == NULL) {
log_warn("server error on c %d for req of type %d because of oom "
"writing stats", c->sd, c->req_type);
asc_write_server_error(c);
} else {
core_write_and_free(c, c->stats.buffer, c->stats.offset);
c->stats.buffer = NULL;
}
}
static void
asc_process_update(struct conn *c, struct token *token, int ntoken)
{
char *key;
size_t nkey;
uint32_t flags, vlen;
int32_t exptime_int;
time_t exptime;
uint64_t req_cas_id = 0;
struct item *it;
bool handle_cas;
req_type_t type;
uint8_t id;
asc_set_noreply_maybe(c, token, ntoken);
if (!asc_ntoken_valid(c, ntoken)) {
log_hexdump(LOG_NOTICE, c->req, c->req_len, "client error on c %d for "
"req of type %d with %d invalid tokens", c->sd,
c->req_type, ntoken);
asc_write_client_error(c);
return;
}
type = c->req_type;
handle_cas = (type == REQ_CAS) ? true : false;
key = token[TOKEN_KEY].val;
nkey = token[TOKEN_KEY].len;
if (nkey > KEY_MAX_LEN) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and %d "
"length key", c->sd, c->req_type, nkey);
asc_write_client_error(c);
return;
}
if (!mc_strtoul(token[TOKEN_FLAGS].val, &flags)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and "
"invalid flags '%.*s'", c->sd, c->req_type,
token[TOKEN_FLAGS].len, token[TOKEN_FLAGS].val);
asc_write_client_error(c);
return;
}
if (!mc_strtol(token[TOKEN_EXPIRY].val, &exptime_int)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and "
"invalid expiry '%.*s'", c->sd, c->req_type,
token[TOKEN_EXPIRY].len, token[TOKEN_EXPIRY].val);
asc_write_client_error(c);
return;
}
if (!mc_strtoul(token[TOKEN_VLEN].val, &vlen)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and "
"invalid vlen '%.*s'", c->sd, c->req_type,
token[TOKEN_VLEN].len, token[TOKEN_VLEN].val);
asc_write_client_error(c);
return;
}
id = item_slabid(nkey, vlen);
if (id == SLABCLASS_INVALID_ID) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and "
"slab id out of range for key size %"PRIu8" and value size "
"%"PRIu32, c->sd, c->req_type, nkey, vlen);
asc_write_client_error(c);
return;
}
exptime = (time_t)exptime_int;
/* does cas value exist? */
if (handle_cas) {
if (!mc_strtoull(token[TOKEN_CAS].val, &req_cas_id)) {
log_debug(LOG_NOTICE, "client error on c %d for req of type %d and "
"invalid cas '%.*s'", c->sd, c->req_type,
token[TOKEN_CAS].len, token[TOKEN_CAS].val);
asc_write_client_error(c);
return;
}
}
it = item_alloc(id, key, nkey, flags, time_reltime(exptime), vlen);
if (it == NULL) {
log_warn("server error on c %d for req of type %d because of oom in "
"storing item", c->sd, c->req_type);
asc_write_server_error(c);
/* swallow the data line */
c->write_and_go = CONN_SWALLOW;
c->sbytes = vlen + CRLF_LEN;
/*
* Avoid stale data persisting in cache because we failed alloc.
* Unacceptable for SET. Anywhere else too?
*
* FIXME: either don't delete anything or should be unacceptable for
* all but add.
*/
if (type == REQ_SET) {
it = item_get(key, nkey);
if (it != NULL) {
item_delete(it);
}
}
return;
}
item_set_cas(it, req_cas_id);
c->item = it;
c->ritem = item_data(it);
c->rlbytes = it->nbyte + CRLF_LEN;
conn_set_state(c, CONN_NREAD);
}
static void
asc_process_update(struct conn *c, struct token *token, int ntoken)
{
char *key;
size_t nkey;
unsigned int flags;
int32_t exptime_int;
time_t exptime;
int vlen;
uint64_t req_cas_id = 0;
struct item *it;
bool handle_cas;
req_type_t type;
asc_set_noreply_maybe(c, token, ntoken);
if (!asc_ntoken_valid(c, ntoken)) {
log_hexdump(LOG_INFO, c->req, c->req_len, "client error on c %d for "
"req of type %d with %d invalid tokens", c->sd,
c->req_type, ntoken);
asc_write_client_error(c);
return;
}
type = c->req_type;
handle_cas = (type == REQ_CAS) ? true : false;
key = token[TOKEN_KEY].val;
nkey = token[TOKEN_KEY].len;
if (nkey > KEY_MAX_LEN) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and %d "
"length key", c->sd, c->req_type, nkey);
asc_write_client_error(c);
return;
}
if (!mc_strtoul(token[TOKEN_FLAGS].val, (uint32_t *)&flags)) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and "
"invalid flags '%.*s'", c->sd, c->req_type,
token[TOKEN_FLAGS].len, token[TOKEN_FLAGS].val);
asc_write_client_error(c);
return;
}
if (!mc_strtol(token[TOKEN_EXPIRY].val, &exptime_int)) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and "
"invalid expiry '%.*s'", c->sd, c->req_type,
token[TOKEN_EXPIRY].len, token[TOKEN_EXPIRY].val);
asc_write_client_error(c);
return;
}
if (!mc_strtol(token[TOKEN_VLEN].val, (int32_t *)&vlen)) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and "
"invalid vlen '%.*s'", c->sd, c->req_type,
token[TOKEN_VLEN].len, token[TOKEN_VLEN].val);
asc_write_client_error(c);
return;
}
exptime = (time_t)exptime_int;
/* does cas value exist? */
if (handle_cas) {
if (!mc_strtoull(token[TOKEN_CAS].val, &req_cas_id)) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and "
"invalid cas '%.*s'", c->sd, c->req_type,
token[TOKEN_CAS].len, token[TOKEN_CAS].val);
asc_write_client_error(c);
return;
}
}
if (vlen < 0) {
log_debug(LOG_INFO, "client error on c %d for req of type %d and "
"invalid vlen %d", c->sd, c->req_type, vlen);
asc_write_client_error(c);
return;
}
vlen += CRLF_LEN;
it = item_alloc(key, nkey, flags, time_reltime(exptime), vlen);
if (it == NULL) {
log_debug(LOG_DEBUG, "server error on c %d for req of type %d because "
"of oom in storing item", c->sd, c->req_type);
asc_write_server_error(c);
/* swallow the data line */
c->write_and_go = CONN_SWALLOW;
c->sbytes = vlen;
/*
* Avoid stale data persisting in cache because we failed alloc.
* Unacceptable for SET. Anywhere else too?
*/
if (type == REQ_SET) {
it = item_get(key, nkey);
if (it != NULL) {
item_unlink(it);
item_remove(it);
}
}
return;
}
item_set_cas(it, req_cas_id);
c->item = it;
c->ritem = item_data(it);
c->rlbytes = it->nbyte;
conn_set_state(c, CONN_NREAD);
}
