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Upgrade libpcap to 1.8.1 (Nmap-specific patches not yet applied)

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This commit is contained in:
dmiller
2018-07-18 13:41:35 +00:00
parent cbb54f79a8
commit 3fc4a6fc95
216 changed files with 27408 additions and 18957 deletions
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48
libpcap/pcap-bt-monitor-linux.c
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@@ -34,12 +34,12 @@
#endif
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/mgmt.h>
#include "pcap/bluetooth.h"
#include "pcap-int.h"
@@ -49,6 +49,16 @@
#define BT_CONTROL_SIZE 32
#define INTERFACE_NAME "bluetooth-monitor"
/*
* Fields and alignment must match the declaration in the Linux kernel 3.4+.
* See struct hci_mon_hdr in include/net/bluetooth/hci_mon.h.
*/
struct hci_mon_hdr {
uint16_t opcode;
uint16_t index;
uint16_t len;
} __attribute__((packed));
int
bt_monitor_findalldevs(pcap_if_t **alldevsp, char *err_str)
{
@@ -72,13 +82,15 @@ bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_ch
ssize_t ret;
struct pcap_pkthdr pkth;
pcap_bluetooth_linux_monitor_header *bthdr;
struct mgmt_hdr hdr;
u_char *pktd;
struct hci_mon_hdr hdr;
bthdr = (pcap_bluetooth_linux_monitor_header*) &handle->buffer[handle->offset];
pktd = (u_char *)handle->buffer + BT_CONTROL_SIZE;
bthdr = (pcap_bluetooth_linux_monitor_header*)(void *)pktd;
iv[0].iov_base = &hdr;
iv[0].iov_len = MGMT_HDR_SIZE;
iv[1].iov_base = &handle->buffer[handle->offset + sizeof(pcap_bluetooth_linux_monitor_header)];
iv[0].iov_len = sizeof(hdr);
iv[1].iov_base = pktd + sizeof(pcap_bluetooth_linux_monitor_header);
iv[1].iov_len = handle->snapshot;
memset(&pkth.ts, 0, sizeof(pkth.ts));
@@ -86,7 +98,7 @@ bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_ch
msg.msg_iov = iv;
msg.msg_iovlen = 2;
msg.msg_control = handle->buffer;
msg.msg_controllen = handle->offset;
msg.msg_controllen = BT_CONTROL_SIZE;
do {
ret = recvmsg(handle->fd, &msg, 0);
@@ -98,12 +110,12 @@ bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_ch
} while ((ret == -1) && (errno == EINTR));
if (ret < 0) {
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Can't receive packet: %s", strerror(errno));
return -1;
}
pkth.caplen = ret - MGMT_HDR_SIZE + sizeof(pcap_bluetooth_linux_monitor_header);
pkth.caplen = ret - sizeof(hdr) + sizeof(pcap_bluetooth_linux_monitor_header);
pkth.len = pkth.caplen;
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
@@ -118,9 +130,8 @@ bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_ch
bthdr->opcode = htons(hdr.opcode);
if (handle->fcode.bf_insns == NULL ||
bpf_filter(handle->fcode.bf_insns, &handle->buffer[handle->offset],
pkth.len, pkth.caplen)) {
callback(user, &pkth, &handle->buffer[handle->offset]);
bpf_filter(handle->fcode.bf_insns, pktd, pkth.len, pkth.caplen)) {
callback(user, &pkth, pktd);
return 1;
}
return 0; /* didn't pass filter */
@@ -129,7 +140,7 @@ bt_monitor_read(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_ch
static int
bt_monitor_inject(pcap_t *handle, const void *buf _U_, size_t size _U_)
{
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "inject not supported yet");
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "inject not supported yet");
return -1;
}
@@ -162,8 +173,7 @@ bt_monitor_activate(pcap_t* handle)
return PCAP_ERROR_RFMON_NOTSUP;
}
handle->bufsize = handle->snapshot + BT_CONTROL_SIZE + sizeof(pcap_bluetooth_linux_monitor_header);
handle->offset = BT_CONTROL_SIZE;
handle->bufsize = BT_CONTROL_SIZE + sizeof(pcap_bluetooth_linux_monitor_header) + handle->snapshot;
handle->linktype = DLT_BLUETOOTH_LINUX_MONITOR;
handle->read_op = bt_monitor_read;
@@ -177,14 +187,14 @@ bt_monitor_activate(pcap_t* handle)
handle->fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
if (handle->fd < 0) {
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Can't create raw socket: %s", strerror(errno));
return PCAP_ERROR;
}
handle->buffer = malloc(handle->bufsize);
if (!handle->buffer) {
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't allocate dump buffer: %s",
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "Can't allocate dump buffer: %s",
pcap_strerror(errno));
goto close_fail;
}
@@ -195,14 +205,14 @@ bt_monitor_activate(pcap_t* handle)
addr.hci_channel = HCI_CHANNEL_MONITOR;
if (bind(handle->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Can't attach to interface: %s", strerror(errno));
goto close_fail;
}
opt = 1;
if (setsockopt(handle->fd, SOL_SOCKET, SO_TIMESTAMP, &opt, sizeof(opt)) < 0) {
snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
pcap_snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
"Can't enable time stamp: %s", strerror(errno));
goto close_fail;
}
@@ -232,7 +242,7 @@ bt_monitor_create(const char *device, char *ebuf, int *is_ours)
}
*is_ours = 1;
p = pcap_create_common(device, ebuf, 0);
p = pcap_create_common(ebuf, 0);
if (p == NULL)
return NULL;