int listen(int sockfd, int backlog)
{
int listen_value;
if (sockfd < OFP_SOCK_NUM_OFFSET)
listen_value = (*libc_listen)(sockfd, backlog);
else
listen_value = ofp_listen(sockfd, backlog);
OFP_DBG("Listen called on socket '%d' returns:'%d'",
sockfd, listen_value);
return listen_value;
}
static int webserver(void *arg)
{
int serv_fd, tmp_fd;
struct ofp_sockaddr_in my_addr;
(void)arg;
OFP_INFO("HTTP thread started");
if (ofp_init_local()) {
OFP_ERR("Error: OFP local init failed.\n");
return -1;
}
sleep(1);
myaddr = ofp_port_get_ipv4_addr(0, 0, OFP_PORTCONF_IP_TYPE_IP_ADDR);
if ((serv_fd = ofp_socket(OFP_AF_INET, OFP_SOCK_STREAM, OFP_IPPROTO_TCP)) < 0) {
OFP_ERR("ofp_socket failed");
perror("serv socket");
return -1;
}
memset(&my_addr, 0, sizeof(my_addr));
my_addr.sin_family = OFP_AF_INET;
my_addr.sin_port = odp_cpu_to_be_16(2048);
my_addr.sin_addr.s_addr = myaddr;
my_addr.sin_len = sizeof(my_addr);
if (ofp_bind(serv_fd, (struct ofp_sockaddr *)&my_addr,
sizeof(struct ofp_sockaddr)) < 0) {
OFP_ERR("Cannot bind http socket (%s)!", ofp_strerror(ofp_errno));
return -1;
}
ofp_listen(serv_fd, 10);
#ifndef USE_EPOLL
OFP_INFO("Using ofp_select");
ofp_fd_set read_fd;
OFP_FD_ZERO(&read_fd);
int nfds = serv_fd;
#else
OFP_INFO("Using ofp_epoll");
int epfd = ofp_epoll_create(1);
struct ofp_epoll_event e = { OFP_EPOLLIN, { .fd = serv_fd } };
static void *webserver(void *arg)
{
int serv_fd, tmp_fd, nfds;
unsigned int alen;
struct ofp_sockaddr_in my_addr, caller;
ofp_fd_set read_fd;
(void)arg;
OFP_INFO("HTTP thread started");
if (ofp_init_local()) {
OFP_ERR("Error: OFP local init failed.\n");
return NULL;
}
sleep(1);
myaddr = ofp_port_get_ipv4_addr(0, 0, OFP_PORTCONF_IP_TYPE_IP_ADDR);
if ((serv_fd = ofp_socket(OFP_AF_INET, OFP_SOCK_STREAM, OFP_IPPROTO_TCP)) < 0) {
OFP_ERR("ofp_socket failed");
perror("serv socket");
return NULL;
}
memset(&my_addr, 0, sizeof(my_addr));
my_addr.sin_family = OFP_AF_INET;
my_addr.sin_port = odp_cpu_to_be_16(2048);
my_addr.sin_addr.s_addr = myaddr;
my_addr.sin_len = sizeof(my_addr);
if (ofp_bind(serv_fd, (struct ofp_sockaddr *)&my_addr,
sizeof(struct ofp_sockaddr)) < 0) {
OFP_ERR("Cannot bind http socket (%s)!", ofp_strerror(ofp_errno));
return 0;
}
ofp_listen(serv_fd, 10);
OFP_FD_ZERO(&read_fd);
nfds = serv_fd;
for ( ; ; )
{
int r, i;
static char buf[1024];
struct ofp_timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 200000;
OFP_FD_SET(serv_fd, &read_fd);
monitor_connections(&read_fd);
r = ofp_select(nfds + 1, &read_fd, NULL, NULL, &timeout);
if (r <= 0)
continue;
if (OFP_FD_ISSET(serv_fd, &read_fd)) {
alen = sizeof(caller);
if ((tmp_fd = ofp_accept(serv_fd,
(struct ofp_sockaddr *)&caller,
&alen)) > 0) {
OFP_INFO("accept fd=%d", tmp_fd);
for (i = 0; i < NUM_CONNECTIONS; i++)
if (connections[i].fd == 0)
break;
if (i >= NUM_CONNECTIONS) {
OFP_ERR("Node cannot accept new connections!");
ofp_close(tmp_fd);
continue;
}
#if 0
struct ofp_linger so_linger;
so_linger.l_onoff = 1;
so_linger.l_linger = 0;
int r1 = ofp_setsockopt(tmp_fd,
OFP_SOL_SOCKET,
OFP_SO_LINGER,
&so_linger,
sizeof so_linger);
if (r1) OFP_ERR("SO_LINGER failed!");
#endif
struct ofp_timeval tv;
tv.tv_sec = 3;
tv.tv_usec = 0;
int r2 = ofp_setsockopt(tmp_fd,
OFP_SOL_SOCKET,
OFP_SO_SNDTIMEO,
&tv,
sizeof tv);
if (r2) OFP_ERR("SO_SNDTIMEO failed!");
connections[i].fd = tmp_fd;
connections[i].addr = caller.sin_addr.s_addr;
connections[i].closed = FALSE;
if (tmp_fd > nfds)
nfds = tmp_fd;
}
}
for (i = 0; i < NUM_CONNECTIONS; i++) {
if (connections[i].fd == 0)
continue;
if (!(OFP_FD_ISSET(connections[i].fd, &read_fd)))
continue;
r = ofp_recv(connections[i].fd, buf, sizeof(buf)-1, 0);
if (r > 0) {
buf[r] = 0;
OFP_INFO("recv data: %s", buf);
if (!strncmp(buf, "GET", 3))
analyze_http(buf, connections[i].fd);
else
OFP_INFO("Not a HTTP GET request");
OFP_INFO("closing %d\n", connections[i].fd);
OFP_FD_CLR(connections[i].fd, &read_fd);
while (ofp_close(connections[i].fd) < 0) {
OFP_ERR("ofp_close failed, fd=%d err='%s'",
connections[i].fd,
ofp_strerror(ofp_errno));
sleep(1);
}
OFP_INFO("closed fd=%d", connections[i].fd);
connections[i].fd = 0;
} else if (r == 0) {
if (connections[i].post) {
OFP_INFO("File download finished");
fclose(connections[i].post);
connections[i].post = NULL;
}
ofp_close(connections[i].fd);
OFP_FD_CLR(connections[i].fd, &read_fd);
connections[i].fd = 0;
}
}
}
OFP_INFO("httpd exiting");
return NULL;
}
