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author | dimitri staessens <dimitri.staessens@intec.ugent.be> | 2016-07-28 21:15:17 +0200 |
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committer | dimitri staessens <dimitri.staessens@intec.ugent.be> | 2016-07-29 13:58:38 +0200 |
commit | ce401448d62f65956ed57b077af2b315f59efe94 (patch) | |
tree | afcfd1cb6399811f2275a7ebfc345f8e3f3afd27 /src/ipcpd/shim-eth-llc | |
parent | 2d529f912c089033e2f40fd0978ccb741bfe2bbb (diff) | |
download | ouroboros-ce401448d62f65956ed57b077af2b315f59efe94.tar.gz ouroboros-ce401448d62f65956ed57b077af2b315f59efe94.zip |
lib: Portability to FreeBSD
Various portability fixes for FreeBSD. POSIX requires shm file names
to start with a "/" to be portable. lseek(2) can be undefined on
POSIX shm, replaced with ftruncate(2). IRMd check on existing lockfile
more portable.
FreeBSD 11.0 is preferred as it natively supports robust mutexes.
Full working LLC implementation pending.
Diffstat (limited to 'src/ipcpd/shim-eth-llc')
-rw-r--r-- | src/ipcpd/shim-eth-llc/main.c | 79 |
1 files changed, 73 insertions, 6 deletions
diff --git a/src/ipcpd/shim-eth-llc/main.c b/src/ipcpd/shim-eth-llc/main.c index c2309272..3fd2188a 100644 --- a/src/ipcpd/shim-eth-llc/main.c +++ b/src/ipcpd/shim-eth-llc/main.c @@ -53,8 +53,17 @@ #include <sys/types.h> #include <sys/ioctl.h> #include <netinet/in.h> + +#ifdef __linux__ #include <linux/if_packet.h> #include <linux/if_ether.h> +#endif + +#ifdef __FreeBSD__ +#include <net/if_dl.h> +#include <netinet/if_ether.h> +#endif + #include <poll.h> #include <sys/mman.h> @@ -89,7 +98,11 @@ struct eth_llc_ipcp_data { /* Keep ipcp_data first for polymorphism. */ struct ipcp_data ipcp_data; +#ifdef __FreeBSD__ + struct sockaddr_dl device; +#else struct sockaddr_ll device; +#endif int s_fd; struct bmp * indices; @@ -285,7 +298,11 @@ static int eth_llc_ipcp_send_frame(uint8_t dst_addr[MAC_SIZE], uint8_t * frame; #else uint8_t frame[SHIM_ETH_LLC_MAX_SDU_SIZE]; - struct sockaddr_ll device; +#ifdef __FreeBSD__ + struct sockaddr_dl device; +#else + struct sockaddr_ll device; +#endif #endif if (payload == NULL) { @@ -321,7 +338,11 @@ static int eth_llc_ipcp_send_frame(uint8_t dst_addr[MAC_SIZE], memcpy(frame, dst_addr, MAC_SIZE * sizeof(uint8_t)); frame_len += MAC_SIZE; memcpy(frame + frame_len, +#ifdef __FreeBSD__ + LLADDR(&shim_data(_ipcp)->device), +#else shim_data(_ipcp)->device.sll_addr, +#endif MAC_SIZE * sizeof(uint8_t)); frame_len += MAC_SIZE; memcpy(frame + frame_len, &length, 2 * sizeof(uint8_t)); @@ -671,8 +692,11 @@ static void * eth_llc_ipcp_sdu_reader(void * o) #endif for (i = 0; i < MAC_SIZE; i++) dst_mac[i] = buf[i]; - +#ifdef __FreeBSD__ + if (memcmp(LLADDR(&shim_data(_ipcp)->device), +#else if (memcmp(shim_data(_ipcp)->device.sll_addr, +#endif dst_mac, MAC_SIZE) && memcmp(br_addr, dst_mac, MAC_SIZE)) { @@ -868,7 +892,13 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) int fd = -1; struct ifreq ifr; int index; +#ifdef __FreeBSD__ + struct ifaddrs * ifaddr; + struct ifaddrs * ifa; + struct sockaddr_dl device; +#else struct sockaddr_ll device; +#endif #if defined(PACKET_RX_RING) && defined(PACKET_TX_RING) struct tpacket_req req; @@ -897,21 +927,58 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) memcpy(ifr.ifr_name, conf->if_name, strlen(conf->if_name)); +#ifdef __FreeBSD__ + if (getifaddrs(&ifaddr) < 0) { + close(fd); + LOG_ERR("Could not get interfaces."); + return -1; + } + + for (ifa = ifaddr, index = 0; ifa != NULL; ifa = ifa->ifa_next, ++index) { + if (strcmp(ifa->ifa_name, conf->if_name)) + continue; + LOG_DBGF("Interface %s found.", conf->if_name); + + memcpy(&ifr.ifr_addr, ifa->ifa_addr, sizeof(*ifa->ifa_addr)); + break; + } + + if (ifa == NULL) { + LOG_ERR("Interface not found."); + freeifaddrs(ifaddr); + return -1; + } + + freeifaddrs(ifaddr); + +#else if (ioctl(fd, SIOCGIFHWADDR, &ifr)) { close(fd); LOG_ERR("Failed to ioctl: %s.", strerror(errno)); return -1; } - close(fd); - index = if_nametoindex(conf->if_name); if (index == 0) { LOG_ERR("Failed to retrieve interface index."); return -1; } +#endif + + close(fd); memset(&(device), 0, sizeof(device)); +#ifdef __FreeBSD__ + device.sdl_index = index; + device.sdl_family = AF_LINK; + memcpy(LLADDR(&device), + ifr.ifr_addr.sa_data, + MAC_SIZE * sizeof (uint8_t)); + device.sdl_alen = MAC_SIZE; + /* TODO: replace socket calls with bpf for BSD */ + LOG_MISSING; + fd = socket(AF_LINK, SOCK_RAW, 0); +#else device.sll_ifindex = index; device.sll_family = AF_PACKET; memcpy(device.sll_addr, @@ -921,6 +988,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) device.sll_protocol = htons(ETH_P_ALL); fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_802_2)); +#endif if (fd < 0) { LOG_ERR("Failed to create socket: %s.", strerror(errno)); return -1; @@ -953,8 +1021,7 @@ static int eth_llc_ipcp_bootstrap(struct dif_config * conf) } #endif - if (bind(fd,(struct sockaddr *) &device, - sizeof(struct sockaddr_ll))) { + if (bind(fd,(struct sockaddr *) &device, sizeof(device))) { LOG_ERR("Failed to bind socket to interface"); close(fd); return -1; |