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Removing dependency on PCAP_NETMASK_UNKNOWN to compile with libpcap <

Browse source 
1.1.1.
This commit is contained in:
Robin Sommer 2015-02-20 13:49:33 -08:00
parent abcb8e7c95
commit d29679484d
5 changed files with 28 additions and 13 deletions
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5
CHANGES
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@ -1,4 +1,9 @@
2.3-427 | 2015-02-20 13:49:33 -0800
* Removing dependency on PCAP_NETMASK_UNKNOWN to compile with
libpcap < 1.1.1. (Robin Sommer)
2.3-426 | 2015-02-20 12:45:51 -0800
* Add 'while' statement to Bro language. Really. (Jon Siwek)

2
VERSION
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@ -1 +1 @@
2.3-426
2.3-427

11
src/iosource/PktSrc.cc
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@ -13,6 +13,15 @@
using namespace iosource;
PktSrc::Properties::Properties()
{
selectable_fd = -1;
link_type = -1;
hdr_size = -1;
netmask = NETMASK_UNKNOWN;
is_live = false;
}
PktSrc::PktSrc()
{
have_packet = false;
@ -50,7 +59,7 @@ int PktSrc::LinkType() const
uint32 PktSrc::Netmask() const
{
return IsOpen() ? props.netmask : PCAP_NETMASK_UNKNOWN;
return IsOpen() ? props.netmask : NETMASK_UNKNOWN;
}
bool PktSrc::IsError() const

17
src/iosource/PktSrc.h
View file

@ -16,6 +16,8 @@ namespace iosource {
*/
class PktSrc : public IOSource {
public:
static const int NETMASK_UNKNOWN = 0xffffffff;
/**
* Struct for returning statistics on a packet source.
*/
@ -67,7 +69,7 @@ public:
/**
* Returns the netmask associated with the source, or \c
* PCAP_NETMASK_UNKNOWN if unknown.
* NETMASK_UNKNOWN if unknown.
*/
uint32 Netmask() const;
@ -253,8 +255,8 @@ protected:
int hdr_size;
/**
* The netmask associated with the source, or \c
* PCAP_NETMASK_UNKNOWN if unknown.
* Returns the netmask associated with the source, or \c
* NETMASK_UNKNOWN if unknown.
*/
uint32 netmask;
@ -264,14 +266,7 @@ protected:
*/
bool is_live;
Properties()
{
selectable_fd = -1;
link_type = -1;
hdr_size = -1;
netmask = PCAP_NETMASK_UNKNOWN;
is_live = false;
}
Properties();
};
/**

6
src/iosource/pcap/Source.cc
View file

@ -77,6 +77,12 @@ void PcapSource::OpenLive()
props.netmask = 0xffffff00;
}
#ifdef PCAP_NETMASK_UNKNOWN
// Defined in libpcap >= 1.1.1
if ( props.netmask == PCAP_NETMASK_UNKNOWN )
props.netmask = PktSrc::NETMASK_UNKNOWN;
#endif
// We use the smallest time-out possible to return almost immediately if
// no packets are available. (We can't use set_nonblocking() as it's
// broken on FreeBSD: even when select() indicates that we can read