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* NetLabel: add the ranged tag to the CIPSOv4 protocolPaul Moore2006-12-03
| | | | | | | | | | | | | | | Add support for the ranged tag (tag type #5) to the CIPSOv4 protocol. The ranged tag allows for seven, or eight if zero is the lowest category, category ranges to be specified in a CIPSO option. Each range is specified by two unsigned 16 bit fields, each with a maximum value of 65534. The two values specify the start and end of the category range; if the start of the category range is zero then it is omitted. See Documentation/netlabel/draft-ietf-cipso-ipsecurity-01.txt for more details. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: add the enumerated tag to the CIPSOv4 protocolPaul Moore2006-12-03
| | | | | | | | | | | | Add support for the enumerated tag (tag type #2) to the CIPSOv4 protocol. The enumerated tag allows for 15 categories to be specified in a CIPSO option, where each category is an unsigned 16 bit field with a maximum value of 65534. See Documentation/netlabel/draft-ietf-cipso-ipsecurity-01.txt for more details. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: convert to an extensibile/sparse category bitmapPaul Moore2006-12-03
| | | | | | | | | | | | | | | | The original NetLabel category bitmap was a straight char bitmap which worked fine for the initial release as it only supported 240 bits due to limitations in the CIPSO restricted bitmap tag (tag type 0x01). This patch converts that straight char bitmap into an extensibile/sparse bitmap in order to lay the foundation for other CIPSO tag types and protocols. This patch also has a nice side effect in that all of the security attributes passed by NetLabel into the LSM are now in a format which is in the host's native byte/bit ordering which makes the LSM specific code much simpler; look at the changes in security/selinux/ss/ebitmap.c as an example. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* [NETFILTER]: Fix PROC_FS=n warningsPatrick McHardy2006-12-03
| | | | | | Fix some unused function/variable warnings. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: remove remaining ASSERT_{READ,WRITE}_LOCKPatrick McHardy2006-12-03
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: x_tables: add NFLOG targetPatrick McHardy2006-12-03
| | | | | | | | | | | Add new NFLOG target to allow use of nfnetlink_log for both IPv4 and IPv6. Currently we have two (unsupported by userspace) hacks in the LOG and ULOG targets to optionally call to the nflog API. They lack a few features, namely the IPv4 and IPv6 LOG targets can not specify a number of arguments related to nfnetlink_log, while the ULOG target is only available for IPv4. Remove those hacks and add a clean way to use nfnetlink_log. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: x_tables: add port of hashlimit match for IPv4 and IPv6Patrick McHardy2006-12-03
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: ctnetlink: rework conntrack fields dumping logic on eventsPablo Neira Ayuso2006-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | NEW | UPDATE | DESTROY | ----------------------------------------| tuples | Y | Y | Y | status | Y | Y | N | timeout | Y | Y | N | protoinfo | S | S | N | helper | S | S | N | mark | S | S | N | counters | F | F | Y | Leyend: Y: yes N: no S: iif the field is set F: iif overflow This patch also replace IPCT_HELPINFO by IPCT_HELPER since we want to track the helper assignation process, not the changes in the private information held by the helper. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: ctnetlink: check for status attribute existence on conntrack ↵Pablo Neira Ayuso2006-12-03
| | | | | | | | | | creation Check that status flags are available in the netlink message received to create a new conntrack. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: better NAT handlingPatrick McHardy2006-12-03
| | | | | | | | | | | | | | | | | | | | | | | The NAT handling of the SIP helper has a few problems: - Request headers are only mangled in the reply direction, From/To headers not at all, which can lead to authentication failures with DNAT in case the authentication domain is the IP address - Contact headers in responses are only mangled for REGISTER responses - Headers may be mangled even though they contain addresses not participating in the connection, like alternative addresses - Packets are droppen when domain names are used where the helper expects IP addresses This patch takes a different approach, instead of fixed rules what field to mangle to what content, it adds symetric mapping of From/To/Via/Contact headers, which allows to deal properly with echoed addresses in responses and foreign addresses not belonging to the connection. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: make header shortcuts optionalPatrick McHardy2006-12-03
| | | | | | | Not every header has a shortcut, so make them optional instead of searching for the same string twice. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: do case insensitive SIP header searchPatrick McHardy2006-12-03
| | | | | | | SIP headers are generally case-insensitive, only SDP headers are case sensitive. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: minor cleanupPatrick McHardy2006-12-03
| | | | | | | | | | - Use enum for header field enumeration - Use numerical value instead of pointer to header info structure to identify headers, unexport ct_sip_hdrs - group SIP and SDP entries in header info structure - remove double forward declaration of ct_sip_get_info Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: ip_conntrack: fix NAT helper unload racesPatrick McHardy2006-12-03
| | | | | | | | | | | | The NAT helpr hooks are protected by RCU, but all of the conntrack helpers test and use the global pointers instead of copying them first using rcu_dereference() Also replace synchronize_net() by synchronize_rcu() for clarity since sychronizing only with packet receive processing is insufficient to prevent races. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: conntrack: add '_get' to {ip, nf}_conntrack_expect_findYasuyuki Kozakai2006-12-03
| | | | | | | | We usually uses 'xxx_find_get' for function which increments reference count. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: /proc compatibility with old connection trackingPatrick McHardy2006-12-03
| | | | | | | | | | This patch adds /proc/net/ip_conntrack, /proc/net/ip_conntrack_expect and /proc/net/stat/ip_conntrack files to keep old programs using them working. The /proc/net/ip_conntrack and /proc/net/ip_conntrack_expect files show only IPv4 entries, the /proc/net/stat/ip_conntrack shows global statistics. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: sysctl compatibility with old connection trackingPatrick McHardy2006-12-03
| | | | | | | This patch adds an option to keep the connection tracking sysctls visible under their old names. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: move conntrack protocol sysctls to individual modulesPatrick McHardy2006-12-03
| | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: move extern declaration to header filesPatrick McHardy2006-12-03
| | | | | | | Using extern in a C file is a bad idea because the compiler can't catch type errors. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: remove unused struct list_head from protocolsMartin Josefsson2006-12-03
| | | | | | | | | Remove unused struct list_head from struct nf_conntrack_l3proto and nf_conntrack_l4proto as all protocols are kept in arrays, not linked lists. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: rename struct nf_conntrack_protocolMartin Josefsson2006-12-03
| | | | | | | | | Rename 'struct nf_conntrack_protocol' to 'struct nf_conntrack_l4proto' in order to help distinguish it from 'struct nf_conntrack_l3proto'. It gets rather confusing with 'nf_conntrack_protocol'. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [TCP] Vegas: Increase default alpha to 2 and beta to 4.David S. Miller2006-12-03
| | | | | | | | | This helps Vegas cope better with delayed ACKs, see analysis at: http://www.cs.caltech.edu/%7Eweixl/technical/ns2linux/known_linux/index.html#vegas Signed-off-by: David S. Miller <davem@davemloft.net>
* [UDP(-Lite)]: consolidate v4 and v6 get|setsockopt codeGerrit Renker2006-12-03
| | | | | | | | | | | | | | | | | | | | | | | This patch consolidates set/getsockopt code between UDP(-Lite) v4 and 6. The justification is that UDP(-Lite) is a transport-layer protocol and therefore the socket option code (at least in theory) should be AF-independent. Furthermore, there is the following code reduplication: * do_udp{,v6}_getsockopt is 100% identical between v4 and v6 * do_udp{,v6}_setsockopt is identical up to the following differerence --v4 in contrast to v4 additionally allows the experimental encapsulation types UDP_ENCAP_ESPINUDP and UDP_ENCAP_ESPINUDP_NON_IKE --the remainder is identical between v4 and v6 I believe that this difference is of little relevance. The advantages in not duplicating twice almost completely identical code. The patch further simplifies the interface of udp{,v6}_push_pending_frames, since for the second argument (struct udp_sock *up) it always holds that up = udp_sk(sk); where sk is the first function argument. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [RTNETLINK]: Add rtnl_put_cacheinfo() to unify some codeThomas Graf2006-12-03
| | | | | | | | IPv4, IPv6, and DECNet all use struct rta_cacheinfo in a similiar way, therefore rtnl_put_cacheinfo() is added to reuse code. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Remove unused dst_pid field in netlink_skb_parmsThomas Graf2006-12-03
| | | | | | | | The destination PID is passed directly to netlink_unicast() respectively netlink_multicast(). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPVS]: Use kmemdup where appropriateArnaldo Carvalho de Melo2006-12-03
| | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [CIPSO]: Missing annotation in cipso_ipv4 update.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Split skb->csumAl Viro2006-12-03
| | | | | | | ... into anonymous union of __wsum and __u32 (csum and csum_offset resp.) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: ip_nat_snmp_basic annotations.Al Viro2006-12-03
| | | | | | | ... and switch the damn checksum update to something saner Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Fix assorted misannotations (from md5 and udplite merges).Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* NetLabel: use cipso_v4_doi_search() for local CIPSOv4 functionsPaul Moore2006-12-03
| | | | | | | | | | The cipso_v4_doi_search() function behaves the same as cipso_v4_doi_getdef() but is a local, static function so use it whenever possibile in the CIPSOv4 code base. Signed-of-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: return the correct error for translated CIPSOv4 tagsPaul Moore2006-12-03
| | | | | | | | | | | | The CIPSOv4 translated tag #1 mapping does not always return the correct error code if the desired mapping does not exist; instead of returning -EPERM it returns -ENOSPC indicating that the buffer is not large enough to hold the translated value. This was caused by failing to check a specific error condition. This patch fixes this so that unknown mappings return -EPERM which is consistent with the rest of the related CIPSOv4 code. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: fixup the handling of CIPSOv4 tags to allow for multiple tag typesPaul Moore2006-12-03
| | | | | | | | | | While the original CIPSOv4 code had provisions for multiple tag types the implementation was not as great as it could be, pushing a lot of non-tag specific processing into the tag specific code blocks. This patch fixes that issue making it easier to support multiple tag types in the future. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: add tag verification when adding new CIPSOv4 DOI definitionsPaul Moore2006-12-03
| | | | | | | | | | | | Currently the CIPSOv4 engine does not do any sort of checking when a new DOI definition is added. The tags are still verified but only as a side effect of normal NetLabel operation (packet processing, socket labeling, etc.) which would cause application errors due to the faulty configuration. This patch adds tag checking when new DOI definition are added allowing us to catch these configuration problems when they happen. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: check for a CIPSOv4 option before we do call into the CIPSOv4 layerPaul Moore2006-12-03
| | | | | | | | | | Right now the NetLabel code always jumps into the CIPSOv4 layer to determine if a CIPSO IP option is present. However, we can do this check directly in the NetLabel code by making use of the CIPSO_V4_OPTEXIST() macro which should save us a function call in the common case of not having a CIPSOv4 option present. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* NetLabel: make netlbl_lsm_secattr struct easier/quicker to understandPaul Moore2006-12-03
| | | | | | | | | | | | | | | | | | | The existing netlbl_lsm_secattr struct required the LSM to check all of the fields to determine if any security attributes were present resulting in a lot of work in the common case of no attributes. This patch adds a 'flags' field which is used to indicate which attributes are present in the structure; this should allow the LSM to do a quick comparison to determine if the structure holds any security attributes. Example: if (netlbl_lsm_secattr->flags) /* security attributes present */ else /* NO security attributes present */ Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* [TCP]: Tidy up skb_entailArnaldo Carvalho de Melo2006-12-03
| | | | | | | | | | | | | Heck, it even saves us some few bytes: [acme@newtoy net-2.6.20]$ codiff -f /tmp/tcp.o.before ../OUTPUT/qemu/net-2.6.20/net/ipv4/tcp.o /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/tcp.c: tcp_sendpage | -7 tcp_sendmsg | -5 2 functions changed, 12 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [TCP] minisocks: Use kmemdup and LIMIT_NETDEBUGArnaldo Carvalho de Melo2006-12-03
| | | | | | | | | | | | Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/tcp_minisocks.o.before /tmp/tcp_minisocks.o.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/tcp_minisocks.c: tcp_check_req | -44 1 function changed, 44 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [IPV4]: Use kmemdup in net/ipv4/devinet.cArnaldo Carvalho de Melo2006-12-03
| | | | | | | | | | | | Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/devinet.o.before /tmp/devinet.o.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/devinet.c: devinet_sysctl_register | -38 1 function changed, 38 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [NETLABEL]: Use kmemdup in cipso_ipv4.cArnaldo Carvalho de Melo2006-12-03
| | | | | | | | | | | | Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/cipso_ipv4.o.before /tmp/cipso_ipv4.o.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/cipso_ipv4.c: cipso_v4_cache_add | -46 1 function changed, 46 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [TCP_IPV4]: Use kmemdup where appropriateArnaldo Carvalho de Melo2006-12-03
| | | | | | | | | | | | | | | | | Also use a variable to avoid the longish tp->md5sig_info-> use in tcp_v4_md5_do_add. Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/tcp_ipv4.o.before /tmp/tcp_ipv4.o.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv4/tcp_ipv4.c: tcp_v4_md5_do_add | -62 tcp_v4_syn_recv_sock | -32 tcp_v4_parse_md5_keys | -86 3 functions changed, 180 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [TCP_IPV4]: CodingStyle cleanups, no code changeArnaldo Carvalho de Melo2006-12-03
| | | | | | Mostly related to CONFIG_TCP_MD5SIG recent merge. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* [NET/IPv4]: Make udp_push_pending_frames staticGerrit Renker2006-12-03
| | | | | | | | udp_push_pending_frames is only referenced within net/ipv4/udp.c and hence can remain static. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: netfilter checksum annotationsAl Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: ipvs checksum annotations.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Make mangling a checksum (0 -> 0xffff on the wire) explicit.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Annotate __skb_checksum_complete() and friends.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Annotate ip_vs_checksum_complete() and callers.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Annotate callers of the reset of checksum.h stuff.Al Viro2006-12-03
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Annotate callers of csum_partial_copy_...() and csum_and_copy...() in ↵Al Viro2006-12-03
| | | | | | | net/* Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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