/*
* start a TCP connection to the peer host on port 113
*/
void
identStart(struct sockaddr_in *me, struct sockaddr_in *my_peer, IDCB * callback, void *data)
{
IdentStateData *state;
int fd;
char key1[IDENT_KEY_SZ];
char key2[IDENT_KEY_SZ];
char key[IDENT_KEY_SZ];
snprintf(key1, IDENT_KEY_SZ, "%s:%d",
inet_ntoa(me->sin_addr),
ntohs(me->sin_port));
snprintf(key2, IDENT_KEY_SZ, "%s:%d",
inet_ntoa(my_peer->sin_addr),
ntohs(my_peer->sin_port));
snprintf(key, IDENT_KEY_SZ, "%s,%s", key1, key2);
if ((state = hash_lookup(ident_hash, key)) != NULL)
{
identClientAdd(state, callback, data);
return;
}
fd = comm_open(SOCK_STREAM,
IPPROTO_TCP,
me->sin_addr,
0,
COMM_NONBLOCKING,
"ident");
if (fd == COMM_ERROR)
{
/* Failed to get a local socket */
callback(NULL, data);
return;
}
CBDATA_INIT_TYPE(IdentStateData);
state = cbdataAlloc(IdentStateData);
state->hash.key = xstrdup(key);
state->fd = fd;
state->me = *me;
state->my_peer = *my_peer;
identClientAdd(state, callback, data);
hash_join(ident_hash, &state->hash);
comm_add_close_handler(fd,
identClose,
state);
commSetTimeout(fd, Config.Timeout.ident, identTimeout, state);
commConnectStart(fd,
inet_ntoa(state->my_peer.sin_addr),
IDENT_PORT,
identConnectDone,
state);
}
void
whoisStart(FwdState * fwd)
{
WhoisState *p;
int fd = fwd->server_fd;
char *buf;
size_t l;
CBDATA_INIT_TYPE(WhoisState);
p = cbdataAlloc(WhoisState);
p->request = fwd->request;
p->entry = fwd->entry;
p->fwd = fwd;
storeLockObject(p->entry);
comm_add_close_handler(fd, whoisClose, p);
l = strLen(p->request->urlpath) + 3;
buf = xmalloc(l);
snprintf(buf, l, "%s\r\n", strBuf(p->request->urlpath) + 1);
comm_write(fd, buf, strlen(buf), NULL, p, xfree);
commSetSelect(fd, COMM_SELECT_READ, whoisReadReply, p, 0);
commSetTimeout(fd, Config.Timeout.read, whoisTimeout, p);
}
static void clientRecvFd(int sock, void *data)
{
int retval;
struct msghdr msg;
struct iovec vec;
char cmsgbuf[CMSG_SPACE(sizeof(int))];
struct cmsghdr *p_cmsg;
char iov_buf[CACHE_WATCH_RECV_MSG_LENGTH];
vec.iov_base = iov_buf;
vec.iov_len = CACHE_WATCH_RECV_MSG_LENGTH;
msg.msg_name = NULL;
msg.msg_namelen = 0;
msg.msg_iov = &vec;
msg.msg_iovlen = 1;
msg.msg_control = cmsgbuf;
msg.msg_controllen = sizeof(cmsgbuf);
msg.msg_flags = 0; /* In case something goes wrong, set the fd to -1 before the syscall */
retval = recvmsg(sock, &msg, 0);
if( retval <= 0 )
{
comm_close(sock);
return;
}
if( (p_cmsg = CMSG_FIRSTHDR(&msg)) == NULL )
{
comm_close(sock);
return;
}
if (squidWatchReply(sock, &msg, iov_buf) != -1)
{
comm_close(sock);
return;
}
int fd = *((int*)CMSG_DATA(p_cmsg));
// for keep alive
commSetSelect(sock, COMM_SELECT_READ, clientRecvFd, NULL, 0);
// omm_close(sock);
if(fd < 0)
{
return;
}
//comm_accept's jobs
struct sockaddr_in peername;
struct sockaddr_in sockname;
socklen_t socklen;
socklen = sizeof(struct sockaddr_in);
memset(&peername, '\0', socklen);
memset(&sockname, '\0', socklen);
getpeername(fd, (struct sockaddr *)&peername, &socklen);
getsockname(fd, (struct sockaddr *)&sockname, &socklen);
commSetCloseOnExec(fd);
fd_open(fd, FD_SOCKET, "HTTP Request");
fde *F = &fd_table[fd];
xstrncpy(F->ipaddr, xinet_ntoa(peername.sin_addr), 16);
F->remote_port = htons(peername.sin_port);
F->local_port = htons(sockname.sin_port);
commSetNonBlocking(fd);
//rest of httpAccept's jobs
//
//int on = 1;
//if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *) &on, sizeof(on)) < 0)
// debug(191, 0) ("commSetTcpNoDelay: FD %d: %s\n", fd, xstrerror());
//fd_table[fd].flags.nodelay = 1;
#ifdef TCP_NODELAY
commSetTcpNoDelay(fd); /*Fix tcp use Negale bug while send packet*/
#endif
#ifdef CC_FRAMEWORK
cc_call_hook_func_private_http_accept(fd);
#endif
debug(191, 4) ("clientRecvFd: FD %d: accepted port %d client %s:%d\n", fd, F->local_port, F->ipaddr, F->remote_port);
fd_note_static(fd, "client http connect");
ConnStateData * connState = cbdataAlloc(ConnStateData);
assert(Config.Sockaddr.http);
connState->port = Config.Sockaddr.http;
cbdataLock(connState->port);
connState->peer = peername;
connState->log_addr = peername.sin_addr;
connState->log_addr.s_addr &= Config.Addrs.client_netmask.s_addr;
connState->me = sockname;
connState->fd = fd;
connState->pinning.fd = -1;
connState->in.buf = memAllocBuf(CLIENT_REQ_BUF_SZ, &connState->in.size);
comm_add_close_handler(fd, connStateFree, connState);
if (Config.onoff.log_fqdn)
fqdncache_gethostbyaddr(peername.sin_addr, FQDN_LOOKUP_IF_MISS);
commSetTimeout(fd, Config.Timeout.request, requestTimeout, connState);
#if USE_IDENT
static aclCheck_t identChecklist;
identChecklist.src_addr = peername.sin_addr;
identChecklist.my_addr = sockname.sin_addr;
identChecklist.my_port = ntohs(sockname.sin_port);
if (aclCheckFast(Config.accessList.identLookup, &identChecklist))
identStart(&sockname, &peername, clientIdentDone, connState);
#endif
commSetSelect(fd, COMM_SELECT_READ, clientReadRequest, connState, 0);
commSetDefer(fd, clientReadDefer, connState);
if (connState->port->tcp_keepalive.enabled)
{
commSetTcpKeepalive(fd, connState->port->tcp_keepalive.idle, connState->port->tcp_keepalive.interval, connState->port->tcp_keepalive.timeout);
}
clientdbEstablished(peername.sin_addr, 1);
incoming_sockets_accepted++;
}
void
sslStart(int fd, const char *url, request_t * request, size_t * size_ptr)
{
/* Create state structure. */
SslStateData *sslState = NULL;
int sock;
ErrorState *err = NULL;
debug(26, 3) ("sslStart: '%s %s'\n",
RequestMethodStr[request->method], url);
Counter.server.all.requests++;
Counter.server.other.requests++;
/* Create socket. */
sock = comm_open(SOCK_STREAM,
0,
Config.Addrs.tcp_outgoing,
0,
COMM_NONBLOCKING,
url);
if (sock == COMM_ERROR) {
debug(26, 4) ("sslStart: Failed because we're out of sockets.\n");
err = errorCon(ERR_SOCKET_FAILURE, HTTP_INTERNAL_SERVER_ERROR);
err->xerrno = errno;
err->request = requestLink(request);
errorSend(fd, err);
return;
}
sslState = xcalloc(1, sizeof(SslStateData));
cbdataAdd(sslState, cbdataXfree, 0);
#if DELAY_POOLS
sslState->delay_id = delayClient(request);
delayRegisterDelayIdPtr(&sslState->delay_id);
#endif
sslState->url = xstrdup(url);
sslState->request = requestLink(request);
sslState->size_ptr = size_ptr;
sslState->client.fd = fd;
sslState->server.fd = sock;
sslState->server.buf = xmalloc(SQUID_TCP_SO_RCVBUF);
sslState->client.buf = xmalloc(SQUID_TCP_SO_RCVBUF);
comm_add_close_handler(sslState->server.fd,
sslServerClosed,
sslState);
comm_add_close_handler(sslState->client.fd,
sslClientClosed,
sslState);
commSetTimeout(sslState->client.fd,
Config.Timeout.lifetime,
sslTimeout,
sslState);
commSetTimeout(sslState->server.fd,
Config.Timeout.connect,
sslTimeout,
sslState);
peerSelect(request,
NULL,
sslPeerSelectComplete,
sslState);
/*
* Disable the client read handler until peer selection is complete
* Take control away from client_side.c.
*/
commSetSelect(sslState->client.fd, COMM_SELECT_READ, NULL, NULL, 0);
}
void
helperOpenServers(helper * hlp)
{
char *s;
char *progname;
char *shortname;
char *procname;
const char *args[HELPER_MAX_ARGS];
char fd_note_buf[FD_DESC_SZ];
helper_server *srv;
int nargs = 0;
int k;
int x;
int rfd;
int wfd;
wordlist *w;
if (hlp->cmdline == NULL)
return;
progname = hlp->cmdline->key;
if ((s = strrchr(progname, '/')))
shortname = xstrdup(s + 1);
else
shortname = xstrdup(progname);
debug(84, 1) ("helperOpenServers: Starting %d '%s' processes\n",
hlp->n_to_start, shortname);
procname = xmalloc(strlen(shortname) + 3);
snprintf(procname, strlen(shortname) + 3, "(%s)", shortname);
args[nargs++] = procname;
for (w = hlp->cmdline->next; w && nargs < HELPER_MAX_ARGS; w = w->next)
args[nargs++] = w->key;
args[nargs++] = NULL;
assert(nargs <= HELPER_MAX_ARGS);
for (k = 0; k < hlp->n_to_start; k++) {
getCurrentTime();
rfd = wfd = -1;
x = ipcCreate(hlp->ipc_type,
progname,
args,
shortname,
&rfd,
&wfd);
if (x < 0) {
debug(84, 1) ("WARNING: Cannot run '%s' process.\n", progname);
continue;
}
hlp->n_running++;
srv = cbdataAlloc(helper_server);
srv->pid = x;
srv->flags.alive = 1;
srv->index = k;
srv->rfd = rfd;
srv->wfd = wfd;
srv->buf = memAllocate(MEM_8K_BUF);
srv->buf_sz = 8192;
srv->offset = 0;
srv->parent = hlp;
cbdataLock(hlp); /* lock because of the parent backlink */
dlinkAddTail(srv, &srv->link, &hlp->servers);
if (rfd == wfd) {
snprintf(fd_note_buf, FD_DESC_SZ, "%s #%d", shortname, k + 1);
fd_note(rfd, fd_note_buf);
} else {
snprintf(fd_note_buf, FD_DESC_SZ, "reading %s #%d", shortname, k + 1);
fd_note(rfd, fd_note_buf);
snprintf(fd_note_buf, FD_DESC_SZ, "writing %s #%d", shortname, k + 1);
fd_note(wfd, fd_note_buf);
}
commSetNonBlocking(rfd);
if (wfd != rfd)
commSetNonBlocking(wfd);
comm_add_close_handler(rfd, helperServerFree, srv);
}
hlp->last_restart = squid_curtime;
safe_free(shortname);
safe_free(procname);
helperKickQueue(hlp);
}