21d3f9806d
* https://patch-diff.githubusercontent.com/raw/gamelinux/passivedns/pull/128.patch * 0001-Fix-compiler-warning-about-excessive-parenthesis.patch * 0002-Add-support-for-loopback-devices.patch * 0003-Declare-signal_reopen_log_files-as-a-sig_atomic_t.patch * 0001-Added-patch-for-GCC-10-by-acoul.patch OBS-URL: https://build.opensuse.org/package/show/home:mnhauke:security/passivedns?expand=0&rev=5
65 lines
1.8 KiB
Diff
65 lines
1.8 KiB
Diff
From 55ed09ab48c617f392bf3cc08bc02ea8249578c7 Mon Sep 17 00:00:00 2001
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From: Shawn Michael <blkmajik@monkeyspunk.net>
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Date: Wed, 8 Dec 2021 16:27:58 -0700
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Subject: [PATCH 2/3] Add support for loopback devices
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---
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src/passivedns.c | 14 ++++++++++++++
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src/passivedns.h | 1 +
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2 files changed, 15 insertions(+)
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diff --git a/src/passivedns.c b/src/passivedns.c
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index b2c2a03..b05d3ba 100644
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--- a/src/passivedns.c
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+++ b/src/passivedns.c
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@@ -66,6 +66,7 @@ uint8_t signal_reopen_log_files = 0;
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static void usage();
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static void show_version();
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void check_vlan (packetinfo *pi);
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+void prepare_null (packetinfo *pi);
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void prepare_raw (packetinfo *pi);
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void prepare_sll (packetinfo *pi);
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void prepare_eth (packetinfo *pi);
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@@ -141,6 +142,9 @@ void got_packet(u_char *useless, const struct pcap_pkthdr *pheader,
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config.inpacket = 1;
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switch (config.linktype) {
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+ case DLT_NULL:
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+ prepare_null(pi);
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+ break;
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case DLT_RAW:
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prepare_raw(pi);
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break;
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@@ -173,6 +177,16 @@ void got_packet(u_char *useless, const struct pcap_pkthdr *pheader,
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config.inpacket = 0;
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}
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+void prepare_null(packetinfo *pi)
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+{
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+ pi->eth_hlen = LOOPBACK_HDR_LEN;
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+ if ((u_int32_t)*pi->packet == AF_INET) {
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+ pi->eth_type = ETHERNET_TYPE_IP;
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+ } else {
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+ pi->eth_type = ETHERNET_TYPE_IPV6;
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+ }
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+}
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+
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void prepare_raw(packetinfo *pi)
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{
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pi->eth_hlen = 0;
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diff --git a/src/passivedns.h b/src/passivedns.h
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index 1031104..594852d 100644
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--- a/src/passivedns.h
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+++ b/src/passivedns.h
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@@ -54,6 +54,7 @@
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#define IP6_PROTO_ICMP 58
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#define SLL_HDR_LEN 16
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+#define LOOPBACK_HDR_LEN 4
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#define IP4_HEADER_LEN 20
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#define IP6_HEADER_LEN 40
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#define TCP_HEADER_LEN 20
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--
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2.37.3
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