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* src: add support for approximate timeout calculation during commitPablo Neira Ayuso2009-01-251-0/+3
| | | | | | | | | | During the commit phase, the entries in the external cache entries are inserted in the kernel conntrack table. Currently, we use a fixed timeout that is specified in the config file. With this patch, if you don't specify the fixed timeout value via CommitTimeout, the daemon calculates the real timeout value during the commit phase. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* network: remove the netpld header from the messagesPablo Neira Ayuso2008-12-081-38/+34
| | | | | | | | | This patch simplifies the message format of the replication messages. As a result, we save four bytes. The netpld header was introduced in the early protocol design. Today, it does not have any reason to exist. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* build: do not include NTA_TIMEOUT in the replication messagesPablo Neira Ayuso2008-12-061-2/+0
| | | | | | | | | With this patch, NTA_TIMEOUT is not included in the replication messages anymore. During the fail-over, we set a small timeout to purge the entries that were not recovered successfully (however, unsuccessful recovery should not happen ever). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* build: add attribute header size to total attribute lengthPablo Neira Ayuso2008-11-251-2/+5
| | | | | | | | | | | | | | This patch adds the size of the attribute header (4 bytes) to the length field of netattr. This fixes a possible invalid memory access in malformed messages. This change is included in the set of scheduled changes for 0.9.9 that break backward compatibility. This patch also removes a memset of 4096 by one to initialize the headers and the netattr paddings. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* network: rework TLV-based protocolPablo Neira Ayuso2008-11-021-103/+99
| | | | | | | | | | | | | | | This patch reworks the TLV-based protocol to reduce the overhead in the message building. The idea is to group some attributes that must be present in a consistent configuration. Putting them together help us to save some cycles in the message building. Now, oprofile reports ~15% of samples in the build path instead of ~25%. CPU consumption for 3000 HTTP GET requests per second (1000 concurrent with apache benchmark tool) is ~45% in my testbed, that is ~19% more consumption than with no replication at all. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* remove secmark support for conntrackdPablo Neira Ayuso2008-05-271-2/+0
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* revert relicensing... still we use linux_list.h code which seems to be GPLv2 ↵/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-03-081-1/+1
| | | | only which is incompatible AFAIK
* relicense conntrack-tools as GPLv3+, so far the most significant contributor ↵/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-03-081-1/+1
| | | | has been Max Kellermann and has no issues with relicensing their contributions.
* add missing bits for NAT sequence adjusment support/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-02-091-0/+14
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* o add IPv6 information to synchronization messages/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-02-091-3/+15
| | | | | o add support for NAT sequence adjustment (requires Linux kernel >= 2.6.25) o remove TODO file from release tarballs
* Max Kellermann <max@duempel.org>:/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-01-231-1/+1
| | | | use size_t
* Max Kellermann <max@duempel.org>:/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2008-01-171-15/+15
| | | | use C99 integers (uint32_t instead of u_int32_t)
* o add support for related conntracks (requires Linux kernel >= 2.6.22)Ayuso/emailAddress=pablo@netfilter.org2007-12-231-0/+14
| | | | o update leftover references to `persistent' and `nack' modes
* = conntrack =/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2007-12-211-0/+2
| | | | | | | | | | | o fix missing `-g' and `-n' options in getopt_long control string o add support for secmark (requires Linux kernel >= 2.6.25) o add mark and secmark information to the manpage o cleanup error message = conntrackd = o add support for secmark (requires Linux kernel >= 2.6.25) o add conntrackd (8) manpage
* fix NAT in changes committed in r6904/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2007-07-191-19/+30
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* - conntrack-tools requires libnetfilter_conntrack >= 0.0.81 /C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org2007-07-091-0/+113
- add len field to nethdr - implement buffered send/recv to batch messages - stop using netlink format for network messages: use similar TLV-based format - reduce synchronization messages size up to 60% - introduce periodic alive messages for sync-nack protocol - timeslice alarm implementation: remove alarm pthread, remove locking - simplify debugging functions: use nfct_snprintf instead - remove major use of libnfnetlink functions: use libnetfilter_conntrack API - deprecate conntrackd -F, use conntrack -F instead - major rework of the network infrastructure: much simple, less messy