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Diffstat (limited to 'src/ipcpd/eth')
-rw-r--r--src/ipcpd/eth/eth.c38
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(&eth_data.mgmt_lock);
-
frame = malloc(sizeof(*frame));
if (frame == NULL) {
- pthread_mutex_unlock(&eth_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(&eth_data.mgmt_lock);
+
list_add(&frame->next, &eth_data.mgmt_frames);
pthread_cond_signal(&eth_data.mgmt_cond);
pthread_mutex_unlock(&eth_data.mgmt_lock);
@@ -979,7 +985,7 @@ static void * eth_ipcp_sdu_writer(void * o)
pthread_rwlock_rdlock(&eth_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)