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Network: Make packet dumping work again

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This commit is contained in:
RichardG867
2024-07-27 19:43:50 -03:00
parent 3f3c2c802a
commit 0ae49490d2
1 changed files with 46 additions and 30 deletions
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76
src/network/network.c
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@@ -54,9 +54,7 @@
#include <stdlib.h>
#include <wchar.h>
#include <time.h>
#ifndef _WIN32
# include <sys/time.h>
#endif /* _WIN32 */
#include <sys/time.h>
#include <stdbool.h>
#define HAVE_STDARG_H
#include <86box/86box.h>
@@ -122,8 +120,7 @@ int network_ndev;
netdev_t network_devs[NET_HOST_INTF_MAX];
/* Local variables. */
#if defined ENABLE_NETWORK_LOG && !defined(_WIN32)
#ifdef ENABLE_NETWORK_LOG
int network_do_log = ENABLE_NETWORK_LOG;
static FILE *network_dump = NULL;
static mutex_t *network_dump_mutex;
@@ -149,9 +146,15 @@ network_dump_packet(netpkt_t *pkt)
struct timeval tv;
gettimeofday(&tv, NULL);
struct {
uint32_t ts_sec, ts_usec, incl_len, orig_len;
uint32_t ts_sec;
uint32_t ts_usec;
uint32_t incl_len;
uint32_t orig_len;
} pcap_packet_hdr = {
tv.tv_sec, tv.tv_usec, pkt->len, pkt->len
.ts_sec = tv.tv_sec,
.ts_usec = tv.tv_usec,
.incl_len = pkt->len,
.orig_len = pkt->len
};
if (network_dump_mutex)
@@ -165,8 +168,9 @@ network_dump_packet(netpkt_t *pkt)
if ((written = fwrite(pkt->data, 1, pkt->len, network_dump)) < pkt->len) {
network_log("NETWORK: failed to write dump packet data\n");
fseek(network_dump, -written - sizeof(pcap_packet_hdr), SEEK_CUR);
} else {
fflush(network_dump);
}
fflush(network_dump);
}
if (network_dump_mutex)
@@ -219,28 +223,41 @@ network_init(void)
#ifdef HAS_VDE
// Try to load the VDE plug library
if(net_vde_prepare()==0) {
if (!net_vde_prepare())
network_devmap.has_vde = 1;
}
#endif
#if defined ENABLE_NETWORK_LOG && !defined(_WIN32)
#ifdef ENABLE_NETWORK_LOG
/* Start packet dump. */
network_dump = fopen("network.pcap", "wb");
struct {
uint32_t magic_number;
uint16_t version_major, version_minor;
int32_t thiszone;
uint32_t sigfigs, snaplen, network;
} pcap_hdr = {
0xa1b2c3d4,
2, 4,
0,
0, 65535, 1
};
fwrite(&pcap_hdr, sizeof(pcap_hdr), 1, network_dump);
fflush(network_dump);
if (network_dump) {
struct {
uint32_t magic_number;
uint16_t version_major;
uint16_t version_minor;
int32_t thiszone;
uint32_t sigfigs;
uint32_t snaplen;
uint32_t network;
} pcap_hdr = {
.magic_number = 0xa1b2c3d4,
.version_major = 2,
.version_minor = 4,
.thiszone = 0,
.sigfigs = 0,
.snaplen = 65535,
.network = 1
};
if (fwrite(&pcap_hdr, 1, sizeof(pcap_hdr), network_dump) < sizeof(pcap_hdr)) {
network_log("NETWORK: failed to write dump header\n");
fclose(network_dump);
network_dump = NULL;
} else {
fflush(network_dump);
}
} else {
network_log("NETWORK: failed to open dump file\n");
}
#endif
}
@@ -297,10 +314,8 @@ network_queue_put_swap(netqueue_t *queue, netpkt_t *src_pkt)
network_log("Discarded zero length packet.\n");
} else if (src_pkt->len > NET_MAX_FRAME) {
network_log("Discarded oversized packet of len=%d.\n", src_pkt->len);
network_dump_packet(src_pkt);
} else {
network_log("Discarded %d bytes packet because the queue is full.\n", src_pkt->len);
network_dump_packet(src_pkt);
}
#endif
return 0;
@@ -501,7 +516,7 @@ network_attach(void *card_drv, uint8_t *mac, NETRXCB rx, NETSETLINKSTATE set_lin
free(card->queued_pkt.data);
free(card);
// Placeholder - insert the error message
fatal("Error initializing the network device: Null driver initialization failed");
fatal("Error initializing the network device: Null driver initialization failed\n");
return NULL;
}
@@ -533,7 +548,7 @@ netcard_close(netcard_t *card)
void
network_close(void)
{
#if defined ENABLE_NETWORK_LOG && !defined(_WIN32)
#ifdef ENABLE_NETWORK_LOG
thread_close_mutex(network_dump_mutex);
network_dump_mutex = NULL;
#endif
@@ -554,7 +569,7 @@ network_reset(void)
{
ui_sb_update_icon(SB_NETWORK, 0);
#if defined ENABLE_NETWORK_LOG && !defined(_WIN32)
#ifdef ENABLE_NETWORK_LOG
network_dump_mutex = thread_create_mutex();
#endif
@@ -598,6 +613,7 @@ network_tx_popv(netcard_t *card, netpkt_t *pkt_vec, int vec_size)
for (int i = 0; i < vec_size; i++) {
if (!network_queue_get_swap(queue, pkt_vec))
break;
network_dump_packet(pkt_vec);
pkt_count++;
pkt_vec++;
}