diff options
Diffstat (limited to 'src/ipcpd/eth')
| -rw-r--r-- | src/ipcpd/eth/eth.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/src/ipcpd/eth/eth.c b/src/ipcpd/eth/eth.c index 8ef11530..c76ef60a 100644 --- a/src/ipcpd/eth/eth.c +++ b/src/ipcpd/eth/eth.c @@ -93,10 +93,9 @@ #include <net/bpf.h> #endif -#define MAC_SIZE 6 #ifdef __linux__ #ifndef ETH_MAX_MTU /* In if_ether.h as of Linux 4.10. */ -#define ETH_MAX_MTU 65535 +#define ETH_MAX_MTU 0xFFFFU #endif /* ETH_MAX_MTU */ #ifdef BUILD_ETH_DIX #define ETH_MTU eth_data.mtu @@ -110,6 +109,7 @@ #define ETH_MTU_MAX ETH_MTU #endif /* __linux__ */ +#define MAC_SIZE 6 #define ETH_TYPE_LENGTH_SIZE sizeof(uint16_t) #define ETH_HEADER_SIZE (2 * MAC_SIZE + ETH_TYPE_LENGTH_SIZE) @@ -121,21 +121,22 @@ #define DIX_HEADER_SIZE (DIX_EID_SIZE + DIX_LENGTH_SIZE) #define ETH_HEADER_TOT_SIZE (ETH_HEADER_SIZE + DIX_HEADER_SIZE) #define MAX_EIDS (1 << (8 * DIX_EID_SIZE)) -#define ETH_MAX_SDU_SIZE (ETH_MTU_MAX - DIX_HEADER_SIZE) -#define ETH_FRAME_SIZE (ETH_HEADER_TOT_SIZE + ETH_MAX_SDU_SIZE) +#define ETH_MAX_SDU_SIZE (ETH_MTU - DIX_HEADER_SIZE) +#define ETH_FRAME_SIZE (ETH_HEADER_SIZE + ETH_MTU_MAX) #elif defined(BUILD_ETH_LLC) #define THIS_TYPE IPCP_ETH_LLC #define MGMT_SAP 0x01 #define LLC_HEADER_SIZE 3 #define ETH_HEADER_TOT_SIZE (ETH_HEADER_SIZE + LLC_HEADER_SIZE) #define MAX_SAPS 64 -#define ETH_MAX_SDU_SIZE (ETH_MTU_MAX - LLC_HEADER_SIZE) -#define ETH_FRAME_SIZE (ETH_HEADER_TOT_SIZE + ETH_MAX_SDU_SIZE) +#define ETH_MAX_SDU_SIZE (ETH_MTU - LLC_HEADER_SIZE) +#define ETH_FRAME_SIZE (ETH_HEADER_SIZE + ETH_MTU_MAX) #endif #define ALLOC_TIMEO 10 /* ms */ #define NAME_QUERY_TIMEO 2000 /* ms */ #define MGMT_TIMEO 100 /* ms */ +#define MGMT_FRAME_SIZE 512 #define FLOW_REQ 0 #define FLOW_REPLY 1 @@ -184,7 +185,7 @@ struct ef { struct mgmt_frame { struct list_head next; uint8_t r_addr[MAC_SIZE]; - uint8_t buf[ETH_FRAME_SIZE]; + uint8_t buf[MGMT_FRAME_SIZE]; }; struct { @@ -375,7 +376,7 @@ static int eth_ipcp_send_frame(const uint8_t * dst_addr, assert(frame); - if (len > ETH_MAX_SDU_SIZE) + if (len > (size_t) ETH_MAX_SDU_SIZE) return -1; e_frame = (struct eth_frame *) frame; @@ -840,10 +841,16 @@ static void * eth_ipcp_sdu_reader(void * o) if (select(eth_data.s_fd + 1, &fds, NULL, NULL, NULL) < 0) continue; assert(FD_ISSET(eth_data.s_fd, &fds)); - if (ipcp_sdb_reserve(&sdb, eth_data.mtu)) + if (ipcp_sdb_reserve(&sdb, ETH_MTU)) continue; - buf = shm_du_buff_head(sdb); - frame_len = recv(eth_data.s_fd, buf, ETH_FRAME_SIZE, 0); + buf = shm_du_buff_head_alloc(sdb, ETH_HEADER_TOT_SIZE); + if (buf == NULL) { + log_dbg("Failed to allocate header."); + ipcp_sdb_release(sdb); + continue; + } + frame_len = recv(eth_data.s_fd, buf, + ETH_MTU + ETH_HEADER_TOT_SIZE, 0); #endif if (frame_len <= 0) { ipcp_sdb_release(sdb); @@ -894,11 +901,8 @@ static void * eth_ipcp_sdu_reader(void * o) if (ssap == MGMT_SAP && dsap == MGMT_SAP) { #endif - pthread_mutex_lock(ð_data.mgmt_lock); - frame = malloc(sizeof(*frame)); if (frame == NULL) { - pthread_mutex_unlock(ð_data.mgmt_lock); #ifndef HAVE_NETMAP ipcp_sdb_release(sdb); #endif @@ -907,6 +911,8 @@ static void * eth_ipcp_sdu_reader(void * o) memcpy(frame->buf, &e_frame->payload, length); memcpy(frame->r_addr, e_frame->src_hwaddr, MAC_SIZE); + pthread_mutex_unlock(ð_data.mgmt_lock); + list_add(&frame->next, ð_data.mgmt_frames); pthread_cond_signal(ð_data.mgmt_cond); pthread_mutex_unlock(ð_data.mgmt_lock); @@ -979,7 +985,7 @@ static void * eth_ipcp_sdu_writer(void * o) pthread_rwlock_rdlock(ð_data.flows_lock); while ((fd = fqueue_next(eth_data.fq)) >= 0) { if (ipcp_flow_read(fd, &sdb)) { - log_err("Bad read from fd %d.", fd); + log_dbg("Bad read from fd %d.", fd); continue; } @@ -987,7 +993,7 @@ static void * eth_ipcp_sdu_writer(void * o) if (shm_du_buff_head_alloc(sdb, ETH_HEADER_TOT_SIZE) == NULL) { - log_err("Failed to allocate header."); + log_dbg("Failed to allocate header."); ipcp_sdb_release(sdb); } #if defined(BUILD_ETH_DIX) |