mirrors/passt
1
0
Fork 0
mirror of https://passt.top/passt synced 2025-05-25 02:25:34 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

passt, pasta: Introduce command-line options and port re-mapping

Browse source 
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2021-08-12 15:42:43 +02:00
parent 1b1b27c06a
commit 1e49d194d0
17 changed files with 1657 additions and 704 deletions

60
pcap.c
View file

@ -24,14 +24,13 @@
#include <fcntl.h>
#include <time.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <unistd.h>
#include <net/if.h>
#include "util.h"
#include "passt.h"
#ifdef DEBUG
#define PCAP_PREFIX "/tmp/passt_"
#define PCAP_PREFIX_PASTA "/tmp/pasta_"
#define PCAP_ISO8601_FORMAT "%FT%H:%M:%SZ"
@ -165,52 +164,35 @@ void pcap_init(struct ctx *c, int index)
if (pcap_fd != -1)
close(pcap_fd);
if (c->mode == MODE_PASTA)
memcpy(name, PCAP_PREFIX_PASTA, sizeof(PCAP_PREFIX_PASTA));
if (!*c->pcap)
return;
gettimeofday(&tv, NULL);
tm = localtime(&tv.tv_sec);
strftime(name + strlen(PCAP_PREFIX), sizeof(PCAP_ISO8601_STR) - 1,
PCAP_ISO8601_FORMAT, tm);
if (*c->pcap == 1) {
if (c->mode == MODE_PASTA)
memcpy(name, PCAP_PREFIX_PASTA,
sizeof(PCAP_PREFIX_PASTA));
snprintf(name + strlen(PCAP_PREFIX) + strlen(PCAP_ISO8601_STR),
sizeof(name) - strlen(PCAP_PREFIX) - strlen(PCAP_ISO8601_STR),
"_%i.pcap", index);
gettimeofday(&tv, NULL);
tm = localtime(&tv.tv_sec);
strftime(name + strlen(PCAP_PREFIX),
sizeof(PCAP_ISO8601_STR) - 1, PCAP_ISO8601_FORMAT, tm);
pcap_fd = open(name, O_WRONLY | O_CREAT | O_APPEND | O_DSYNC,
snprintf(name + strlen(PCAP_PREFIX) + strlen(PCAP_ISO8601_STR),
sizeof(name) - strlen(PCAP_PREFIX) -
strlen(PCAP_ISO8601_STR),
"_%i.pcap", index);
strncpy(c->pcap, name, PATH_MAX);
}
pcap_fd = open(c->pcap, O_WRONLY | O_CREAT | O_TRUNC | O_DSYNC,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if (pcap_fd == -1) {
perror("open");
return;
}
info("Saving packet capture at %s", name);
info("Saving packet capture at %s", c->pcap);
write(pcap_fd, &pcap_hdr, sizeof(pcap_hdr));
}
#else /* DEBUG */
void pcap(char *pkt, size_t len)
{
(void)pkt;
(void)len;
}
void pcapm(struct msghdr *mh)
{
(void)mh;
}
void pcapmm(struct mmsghdr *mmh, unsigned int vlen)
{
(void)mmh;
(void)vlen;
}
void pcap_init(struct ctx *c, int sock_index)
{
(void)c;
(void)sock_index;
}
#endif