diff options
Diffstat (limited to 'src/ipcpd/shim-udp/main.c')
| -rw-r--r-- | src/ipcpd/shim-udp/main.c | 138 |
1 files changed, 40 insertions, 98 deletions
diff --git a/src/ipcpd/shim-udp/main.c b/src/ipcpd/shim-udp/main.c index ef7b9909..14a698ee 100644 --- a/src/ipcpd/shim-udp/main.c +++ b/src/ipcpd/shim-udp/main.c @@ -88,11 +88,10 @@ struct shim_ap_data { pthread_t mainloop; pthread_t sduloop; pthread_t handler; - pthread_t sdu_reader[2]; - int ping_pong; + pthread_t sdu_reader; } * _ap_instance; -int shim_ap_init(char * ap_name) +static int shim_ap_init(char * ap_name) { _ap_instance = malloc(sizeof(struct shim_ap_data)); if (_ap_instance == NULL) { @@ -235,21 +234,6 @@ struct ipcp_udp_data * ipcp_udp_data_create() return udp_data; } -void ipcp_udp_data_destroy(struct ipcp_udp_data * data) -{ - if (data == NULL) - return; - - ipcp_data_destroy((struct ipcp_data *) data); -} - -void ipcp_udp_destroy(struct ipcp * ipcp) -{ - ipcp_udp_data_destroy((struct ipcp_udp_data *) ipcp->data); - shim_ap_fini(); - free(ipcp); -} - void ipcp_sig_handler(int sig, siginfo_t * info, void * c) { switch(sig) { @@ -261,9 +245,11 @@ void ipcp_sig_handler(int sig, siginfo_t * info, void * c) info->si_pid); pthread_cancel(_ap_instance->mainloop); pthread_cancel(_ap_instance->handler); - pthread_cancel(_ap_instance->sdu_reader[0]); - pthread_cancel(_ap_instance->sdu_reader[1]); + pthread_cancel(_ap_instance->sdu_reader); pthread_cancel(_ap_instance->sduloop); + + /* FIXME: should be called after join */ + shim_ap_fini(); exit(0); } default: @@ -278,11 +264,11 @@ static void * ipcp_udp_listener() struct sockaddr_in f_saddr; struct sockaddr_in c_saddr; - struct hostent * hostp; int sfd = shim_data(_ipcp)->s_fd; while (true) { int fd; + memset(&buf, 0, SHIM_UDP_BUF_SIZE); n = sizeof c_saddr; n = recvfrom(sfd, buf, SHIM_UDP_BUF_SIZE, 0, (struct sockaddr *) &c_saddr, (unsigned *) &n); @@ -290,9 +276,9 @@ static void * ipcp_udp_listener() continue; /* flow alloc request from other host */ - hostp = gethostbyaddr((const char *) &c_saddr.sin_addr.s_addr, - sizeof(c_saddr.sin_addr.s_addr), AF_INET); - if (hostp == NULL) + if (gethostbyaddr((const char *) &c_saddr.sin_addr.s_addr, + sizeof(c_saddr.sin_addr.s_addr), AF_INET) + == NULL) continue; fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); @@ -354,18 +340,17 @@ static void * ipcp_udp_sdu_reader() int n; int fd; char buf[SHIM_UDP_MAX_SDU_SIZE]; - + struct timeval tv = {0, 10}; struct sockaddr_in r_saddr; + fd_set read_fds; while (true) { - if (select(FD_SETSIZE, - &shim_data(_ipcp)->flow_fd_s, - NULL, NULL, NULL) - < 0) + read_fds = shim_data(_ipcp)->flow_fd_s; + if (select(FD_SETSIZE, &read_fds, NULL, NULL, &tv) <= 0) continue; for (fd = 0; fd < FD_SETSIZE; ++fd) { - if (!FD_ISSET(fd, &shim_data(_ipcp)->flow_fd_s)) + if (!FD_ISSET(fd, &read_fds)) continue; n = sizeof r_saddr; @@ -384,7 +369,7 @@ static void * ipcp_udp_sdu_reader() return (void *) 0; } -int ipcp_udp_bootstrap(struct dif_config * conf) +static int ipcp_udp_bootstrap(struct dif_config * conf) { char ipstr[INET_ADDRSTRLEN]; char dnsstr[INET_ADDRSTRLEN]; @@ -417,11 +402,11 @@ int ipcp_udp_bootstrap(struct dif_config * conf) return -1; } #ifndef CONFIG_OUROBOROS_ENABLE_DNS - LOG_WARN("DNS address ignored since shim-udp was " - "compiled without DNS support."); + LOG_WARN("DNS disabled at compile time, address ignored"); #endif - } else + } else { strcpy(dnsstr, "not set"); + } shim_data(_ipcp)->ip_addr = conf->ip_addr; shim_data(_ipcp)->dns_addr = conf->dns_addr; @@ -459,18 +444,11 @@ int ipcp_udp_bootstrap(struct dif_config * conf) NULL, ipcp_udp_listener, NULL); - pthread_create(&_ap_instance->sdu_reader[0], + pthread_create(&_ap_instance->sdu_reader, NULL, ipcp_udp_sdu_reader, NULL); - pthread_create(&_ap_instance->sdu_reader[1], - NULL, - ipcp_udp_sdu_reader, - NULL); - - _ap_instance->ping_pong = 0; - _ipcp->state = IPCP_ENROLLED; LOG_DBG("Bootstrapped shim IPCP over UDP with pid %d.", @@ -529,7 +507,6 @@ static int ddns_send(char * cmd) return 0; } - static uint32_t ddns_resolve(char * name, uint32_t dns_addr) { pid_t pid = 0; @@ -607,7 +584,7 @@ static uint32_t ddns_resolve(char * name, uint32_t dns_addr) } #endif -int ipcp_udp_name_reg(char * name) +static int ipcp_udp_name_reg(char * name) { #ifdef CONFIG_OUROBOROS_ENABLE_DNS char ipstr[INET_ADDRSTRLEN]; @@ -665,7 +642,7 @@ int ipcp_udp_name_reg(char * name) return 0; } -int ipcp_udp_name_unreg(char * name) +static int ipcp_udp_name_unreg(char * name) { #ifdef CONFIG_OUROBOROS_ENABLE_DNS char dnsstr[INET_ADDRSTRLEN]; @@ -702,12 +679,12 @@ int ipcp_udp_name_unreg(char * name) return 0; } -int ipcp_udp_flow_alloc(int port_id, - pid_t n_pid, - char * dst_name, - char * src_ap_name, - char * src_ae_name, - struct qos_spec * qos) +static int ipcp_udp_flow_alloc(int port_id, + pid_t n_pid, + char * dst_name, + char * src_ap_name, + char * src_ae_name, + struct qos_spec * qos) { struct sockaddr_in l_saddr; struct sockaddr_in r_saddr; @@ -775,8 +752,6 @@ int ipcp_udp_flow_alloc(int port_id, r_saddr.sin_addr.s_addr = ip_addr; r_saddr.sin_port = LISTEN_PORT; - - /* at least try to get the packet on the wire */ if (sendto(fd, dst_name, strlen(dst_name), 0, (struct sockaddr *) &r_saddr, sizeof r_saddr) < 0) { LOG_ERR("Failed to send packet"); @@ -787,10 +762,15 @@ int ipcp_udp_flow_alloc(int port_id, /* wait for the other shim IPCP to respond */ recv_buf = malloc(strlen(dst_name) + 1); + if (recv_buf == NULL) { + LOG_ERR("Failed to malloc recv_buff."); + close(fd); + return -1; + } n = sizeof(rf_saddr); n = recvfrom(fd, recv_buf, - strlen(dst_name) + 1, + strlen(dst_name), 0, (struct sockaddr *) &rf_saddr, (unsigned *) &n); @@ -804,7 +784,7 @@ int ipcp_udp_flow_alloc(int port_id, return -1; } - if (strcmp(recv_buf, dst_name)) + if (memcmp(recv_buf, dst_name, strlen(dst_name))) LOG_WARN("Incorrect echo from server"); free(recv_buf); @@ -829,19 +809,12 @@ int ipcp_udp_flow_alloc(int port_id, FD_SET(fd, &shim_data(_ipcp)->flow_fd_s); - pthread_cancel(_ap_instance->sdu_reader[_ap_instance->ping_pong]); - pthread_create(&_ap_instance->sdu_reader[_ap_instance->ping_pong], - NULL, - ipcp_udp_sdu_reader, - NULL); - _ap_instance->ping_pong = !_ap_instance->ping_pong; - LOG_DBG("Allocated flow with port_id %d on UDP fd %d.", port_id, fd); return fd; } -int ipcp_udp_flow_alloc_resp(int port_id, +static int ipcp_udp_flow_alloc_resp(int port_id, pid_t n_pid, int response) { @@ -872,19 +845,12 @@ int ipcp_udp_flow_alloc_resp(int port_id, FD_SET(fd, &shim_data(_ipcp)->flow_fd_s); - pthread_cancel(_ap_instance->sdu_reader[_ap_instance->ping_pong]); - pthread_create(&_ap_instance->sdu_reader[_ap_instance->ping_pong], - NULL, - ipcp_udp_sdu_reader, - NULL); - _ap_instance->ping_pong = !_ap_instance->ping_pong; - LOG_DBG("Accepted flow, port_id %d on UDP fd %d.", port_id, fd); return 0; } -int ipcp_udp_flow_dealloc(int port_id) +static int ipcp_udp_flow_dealloc(int port_id) { int fd = port_id_to_fd(port_id); if (fd < 0) { @@ -902,26 +868,7 @@ int ipcp_udp_flow_dealloc(int port_id) return 0; } -/* FIXME: may be crap, didn't think this one through */ -int ipcp_udp_flow_dealloc_arr(int port_id) -{ - int fd = port_id_to_fd(port_id); - if (fd < 0) { - LOG_DBGF("Could not find flow with port_id %d.", port_id); - return 0; - } - - _ap_instance->flows[fd].state = FLOW_NULL; - _ap_instance->flows[fd].port_id = 0; - if (_ap_instance->flows[fd].rb != NULL) - shm_ap_rbuff_close(_ap_instance->flows[fd].rb); - - FD_CLR(fd, &shim_data(_ipcp)->flow_fd_s); - - return ipcp_flow_dealloc(0, port_id); -} - -struct ipcp * ipcp_udp_create(char * ap_name) +static struct ipcp * ipcp_udp_create(char * ap_name) { struct ipcp * i; struct ipcp_udp_data * data; @@ -969,7 +916,7 @@ struct ipcp * ipcp_udp_create(char * ap_name) /* FIXME: if we move _ap_instance to dev.h, we can reuse it everywhere */ /* FIXME: stop eating the CPU */ -void * ipcp_udp_sdu_loop(void * o) +static void * ipcp_udp_sdu_loop(void * o) { while (true) { struct rb_entry * e = shm_ap_rbuff_read(_ap_instance->rb); @@ -1039,12 +986,7 @@ int main (int argc, char * argv[]) pthread_join(_ap_instance->sduloop, NULL); pthread_join(_ap_instance->mainloop, NULL); pthread_join(_ap_instance->handler, NULL); - pthread_join(_ap_instance->sdu_reader[0], NULL); - pthread_join(_ap_instance->sdu_reader[1], NULL); - - ipcp_udp_destroy(_ipcp); - - shim_ap_fini(); + pthread_join(_ap_instance->sdu_reader, NULL); exit(0); } |