From 6019a5b1ee574c8cea485ce5ba68ff77a24b4786 Mon Sep 17 00:00:00 2001 From: Sander Vrijders Date: Tue, 14 Jun 2016 14:23:56 +0200 Subject: ipcpd: Address comments by Dimitri This addresses some comments Dimitri had on the shim Ethernet with LLC. --- src/ipcpd/shim-eth-llc/main.c | 53 +++++++++++++++++++------------------------ 1 file changed, 23 insertions(+), 30 deletions(-) diff --git a/src/ipcpd/shim-eth-llc/main.c b/src/ipcpd/shim-eth-llc/main.c index 73d6288e..ac383fc8 100644 --- a/src/ipcpd/shim-eth-llc/main.c +++ b/src/ipcpd/shim-eth-llc/main.c @@ -304,7 +304,7 @@ static int eth_llc_ipcp_send_frame(uint8_t dst_addr[MAC_SIZE], if (sendto(fd, frame, frame_len, 0, (struct sockaddr *) &device, sizeof(device)) <= 0) { - LOG_ERR("Failed to send message"); + LOG_ERR("Failed to send message."); return -1; } @@ -318,20 +318,18 @@ static int eth_llc_ipcp_send_mgmt_frame(shim_eth_llc_msg_t * msg, uint8_t * buf; len = shim_eth_llc_msg__get_packed_size(msg); - if (len == 0) { + if (len == 0) return -1; - } buf = malloc(len); - if (buf == NULL) { + if (buf == NULL) return -1; - } shim_eth_llc_msg__pack(msg, buf); if (eth_llc_ipcp_send_frame(dst_addr, reverse_bits(MGMT_SAP), reverse_bits(MGMT_SAP), buf, len)) { - LOG_ERR("Failed to send mgmt frame"); + LOG_ERR("Failed to send management frame."); return -1; } @@ -402,7 +400,7 @@ static int eth_llc_ipcp_port_req(uint8_t r_sap, if (index < 0) { rw_lock_unlock(&_ipcp->state_lock); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); - LOG_ERR("Out of free indices"); + LOG_ERR("Out of free indices."); return -1; } @@ -416,7 +414,7 @@ static int eth_llc_ipcp_port_req(uint8_t r_sap, bmp_release(shim_data(_ipcp)->indices, index); rw_lock_unlock(&_ipcp->state_lock); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); - LOG_ERR("Could not get port id from IRMd"); + LOG_ERR("Could not get port id from IRMd."); return -1; } @@ -453,7 +451,7 @@ static int eth_llc_ipcp_port_alloc_reply(uint8_t ssap, if (index < 0) { rw_lock_unlock(&shim_data(_ipcp)->flows_lock); rw_lock_unlock(&_ipcp->state_lock); - LOG_ERR("No flow found with that SAP"); + LOG_ERR("No flow found with that SAP."); return -1; /* -EFLOWNOTFOUND */ } @@ -501,9 +499,9 @@ static int eth_llc_ipcp_flow_dealloc_req(uint8_t ssap, i = sap_to_index(ssap); if (i < 0) { - LOG_ERR("No flow found for remote deallocation request"); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); rw_lock_unlock(&_ipcp->state_lock); + LOG_ERR("No flow found for remote deallocation request."); return 0; } @@ -527,10 +525,8 @@ static int eth_llc_ipcp_mgmt_frame(uint8_t * buf, shim_eth_llc_msg_t * msg = NULL; msg = shim_eth_llc_msg__unpack(NULL, len, buf); - if (msg == NULL) { + if (msg == NULL) return -1; - } - switch (msg->code) { case SHIM_ETH_LLC_MSG_CODE__FLOW_REQ: if (ipcp_data_is_in_registry(_ipcp->data, @@ -591,25 +587,23 @@ static void * eth_llc_ipcp_sdu_reader(void * o) if (recv(shim_data(_ipcp)->s_fd, buf, SHIM_ETH_LLC_MAX_SDU_SIZE, 0) < 0) { - LOG_ERR("Failed to recv frame"); + LOG_ERR("Failed to recv frame."); continue; } - for (i = 0; i < MAC_SIZE; i++) { + for (i = 0; i < MAC_SIZE; i++) dst_mac[i] = buf[i]; - } if (memcmp(shim_data(_ipcp)->device.sll_addr, dst_mac, MAC_SIZE) && memcmp(br_addr, dst_mac, MAC_SIZE)) { - LOG_DBG("Not a unicast or broadcast frame"); + LOG_DBG("Not a unicast or broadcast frame."); continue; } - for (; i < 2 * MAC_SIZE; i++) { + for (; i < 2 * MAC_SIZE; i++) src_mac[i - MAC_SIZE] = buf[i]; - } frame_len = ((buf[i]) << 8) + buf[i + 1]; i += 2; @@ -628,9 +622,9 @@ static void * eth_llc_ipcp_sdu_reader(void * o) j = addr_and_saps_to_index(src_mac, ssap, dsap); if (j < 0) { - LOG_DBG("Received data for unknown flow"); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); rw_lock_unlock(&_ipcp->state_lock); + LOG_DBG("Received data for unknown flow."); continue; } @@ -700,9 +694,8 @@ static void * eth_llc_ipcp_sdu_writer(void * o) dsap = reverse_bits(shim_data(_ipcp)->flows[i].r_sap); if (eth_llc_ipcp_send_frame(shim_data(_ipcp)->flows[i].r_addr, - dsap, ssap, buf, len)) { - LOG_ERR("Failed to send SDU"); - } + dsap, ssap, buf, len)) + LOG_ERR("Failed to send SDU."); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); @@ -772,7 +765,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) } if (conf->if_name == NULL) { - LOG_ERR("Interface name is NULL"); + LOG_ERR("Interface name is NULL."); return -1; } @@ -780,7 +773,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) fd = socket(AF_UNIX, SOCK_STREAM, 0); if (fd < 0) { - LOG_ERR("Failed to open socket"); + LOG_ERR("Failed to open socket."); return -1; } @@ -788,7 +781,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) if (ioctl(fd, SIOCGIFHWADDR, &ifr)) { close(fd); - LOG_ERR("Failed to ioctl: %s", strerror(errno)); + LOG_ERR("Failed to ioctl: %s.", strerror(errno)); return -1; } @@ -796,13 +789,13 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) index = if_nametoindex(conf->if_name); if (index == 0) { - LOG_ERR("Failed to retrieve interface index"); + LOG_ERR("Failed to retrieve interface index."); return -1; } fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_802_2)); if (fd < 0) { - LOG_ERR("Failed to create socket: %s", strerror(errno)); + LOG_ERR("Failed to create socket: %s.", strerror(errno)); return -1; } @@ -927,8 +920,8 @@ static int eth_llc_ipcp_flow_alloc(pid_t n_pid, if (ssap < 0) { shm_ap_rbuff_close(rb); bmp_release(shim_data(_ipcp)->indices, index); - rw_lock_unlock(&_ipcp->state_lock); rw_lock_unlock(&shim_data(_ipcp)->flows_lock); + rw_lock_unlock(&_ipcp->state_lock); return -1; } @@ -1119,7 +1112,7 @@ int main(int argc, char * argv[]) _ipcp = ipcp_instance_create(); if (_ipcp == NULL) { - LOG_ERR("Failed to create instance"); + LOG_ERR("Failed to create instance."); exit(1); } -- cgit v1.2.3