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* [NET]: Make code static.Adrian Bunk2006-09-22
| | | | | | | This patch makes needlessly global code static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SUNRPC]: Update to use in-kernel sockets API.Sridhar Samudrala2006-09-22
| | | | | | Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Round out in-kernel sockets APISridhar Samudrala2006-09-22
| | | | | | | | | | This patch implements wrapper functions that provide a convenient way to access the sockets API for in-kernel users like sunrpc, cifs & ocfs2 etc and any future users. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Move netlink neighbour table bits to linux/neighbour.hThomas Graf2006-09-22
| | | | | | | | | rtnetlink_rcv_msg() is not longer required to parse attributes for the neighbour tables layer, remove dependency on obsolete and buggy rta_buf. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Convert neighbour table dumping to new netlink apiThomas Graf2006-09-22
| | | | | | | Also fixes skipping of already dumped neighbours. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Convert neighbour table modification to new netlink apiThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Move netlink neighbour bits to linux/neighbour.hThomas Graf2006-09-22
| | | | | | | | | | | | | | Moves netlink neighbour bits to linux/neighbour.h. Also moves bits to be exported to userspace from net/neighbour.h to linux/neighbour.h and removes __KERNEL__ guards, userspace is not supposed to be using it. rtnetlink_rcv_msg() is not longer required to parse attributes for the neighbour layer, remove dependency on obsolete and buggy rta_buf. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Convert neighbour dumping to new netlink apiThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Convert neighbour addition to new netlink apiThomas Graf2006-09-22
| | | | | | | | | Fixes: Return EAFNOSUPPORT if no table matches the specified address family. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NEIGH]: Convert neighbour deletion to new netlink apiThomas Graf2006-09-22
| | | | | | | | | | Fixes: Return ENOENT if the neighbour is not found (was EINVAL) Return EAFNOSUPPORT if no table matches the specified address family. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix policy routing lookupPatrick McHardy2006-09-22
| | | | | | | | | When the lookup in a table returns ip6_null_entry the policy routing lookup returns it instead of continuing in the next table, which effectively means it only searches the local table. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix crash in ip6_del_rtPatrick McHardy2006-09-22
| | | | | | | | ip6_null_entry doesn't have rt6i_table set, when trying to delete it the kernel crashes dereferencing table->tb6_lock. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Fix thinko in rt6_fill_nodePatrick McHardy2006-09-22
| | | | | | | This looks like a mistake, the table ID is overwritten again. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: nf_queue: handle GSO packetsPatrick McHardy2006-09-22
| | | | | | | | Handle GSO packets in nf_queue by segmenting them before queueing to avoid breaking GSO in case they get mangled. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: Get rid of HW checksum invalidationPatrick McHardy2006-09-22
| | | | | | | Update hardware checksums incrementally to avoid breaking GSO. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETEPatrick McHardy2006-09-22
| | | | | | | | | | | Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: netbios conntrack: fix compilePatrick McHardy2006-09-22
| | | | | | | | Fix compile breakage caused by move of IFA_F_SECONDARY to new header file. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Move netlink interface bits to linux/if.hThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Convert link dumping to new netlink apiThomas Graf2006-09-22
| | | | | | | | | | | | | Transforms netlink code to dump link tables to use the new netlink api. Makes rtnl_getlink() available regardless of the availability of the wireless extensions. Adding copy_rtnl_link_stats() avoids the structural dependency of struct rtnl_link_stats on struct net_device_stats and thus avoids troubles later on. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Convert link modification to new netlink apiThomas Graf2006-09-22
| | | | | | | | | | | | | Transforms do_setlink() into rtnl_setlink() using the new netlink api. A warning message printed to the console is added in the event that a change request fails while part of the change request has been comitted already. The ioctl() based nature of net devices makes it almost impossible to move on to atomic netlink operations without obsoleting some of the functionality. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPv4]: Move interface address bits to linux/if_addr.hThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Convert address dumping to new netlink apiThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Convert address deletion to new netlink apiThomas Graf2006-09-22
| | | | | | | | Fixes various unvalidated netlink attributes causing memory corruptions when left empty by userspace. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Convert address addition to new netlink apiThomas Graf2006-09-22
| | | | | | | | | | Adds rtm_to_ifaddr() transforming a netlink message to a struct in_ifaddr. Fixes various unvalidated netlink attributes causing memory corruptions when left empty by userspace applications. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Convert core netlink handling to new netlink apiThomas Graf2006-09-22
| | | | | | | | Fixes a theoretical memory and locking leak when the size of the netlink header would exceed the skb tailroom. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Extend netlink messaging interfaceThomas Graf2006-09-22
| | | | | | | | | | | | | | Adds: nlmsg_get_pos() return current position in message nlmsg_trim() trim part of message nla_reserve_nohdr(skb, len) reserve room for an attribute w/o hdr nla_put_nohdr(skb, len, data) add attribute w/o hdr nla_find_nested() find attribute in nested attributes Fixes nlmsg_new() to take allocation flags and consider size. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4]: Use Protocol Independant Policy Routing Rules FrameworkThomas Graf2006-09-22
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Policy Routing RulesThomas Graf2006-09-22
| | | | | | | | Adds support for policy routing rules including a new local table for routes with a local destination. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Protocol Independant Policy Routing Rules FrameworkThomas Graf2006-09-22
| | | | | | | Derived from net/ipv/fib_rules.c Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Multiple Routing TablesThomas Graf2006-09-22
| | | | | | | | | | Adds the framework to support multiple IPv6 routing tables. Currently all automatically generated routes are put into the same table. This could be changed at a later point after considering the produced locking overhead. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV6]: Remove ndiscs rt6_lock dependencyThomas Graf2006-09-22
| | | | | | | | (Ab)using rt6_lock wouldn't work anymore if rt6_lock is converted into a per table lock. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: tie NetLabel into the Kconfig systemPaul Moore2006-09-22
| | | | | | | | Modify the net/Kconfig file to enable selecting the NetLabel Kconfig options. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: SELinux supportVenkat Yekkirala2006-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add NetLabel support to the SELinux LSM and modify the socket_post_create() LSM hook to return an error code. The most significant part of this patch is the addition of NetLabel hooks into the following SELinux LSM hooks: * selinux_file_permission() * selinux_socket_sendmsg() * selinux_socket_post_create() * selinux_socket_sock_rcv_skb() * selinux_socket_getpeersec_stream() * selinux_socket_getpeersec_dgram() * selinux_sock_graft() * selinux_inet_conn_request() The basic reasoning behind this patch is that outgoing packets are "NetLabel'd" by labeling their socket and the NetLabel security attributes are checked via the additional hook in selinux_socket_sock_rcv_skb(). NetLabel itself is only a labeling mechanism, similar to filesystem extended attributes, it is up to the SELinux enforcement mechanism to perform the actual access checks. In addition to the changes outlined above this patch also includes some changes to the extended bitmap (ebitmap) and multi-level security (mls) code to import and export SELinux TE/MLS attributes into and out of NetLabel. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: CIPSOv4 and Unlabeled packet integrationPaul Moore2006-09-22
| | | | | | | | | | | Add CIPSO/IPv4 and unlabeled packet management to the NetLabel subsystem. The CIPSO/IPv4 changes allow the configuration of CIPSO/IPv4 within the overall NetLabel framework. The unlabeled packet changes allows NetLabel to pass unlabeled packets without error. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: core NetLabel subsystemPaul Moore2006-09-22
| | | | | | | | | | | | | | Add a new kernel subsystem, NetLabel, to provide explicit packet labeling services (CIPSO, RIPSO, etc.) to LSM developers. NetLabel is designed to work in conjunction with a LSM to intercept and decode security labels on incoming network packets as well as ensure that outgoing network packets are labeled according to the security mechanism employed by the LSM. The NetLabel subsystem is configured through a Generic NETLINK interface described in the header files included in this patch. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: CIPSOv4 enginePaul Moore2006-09-22
| | | | | | | | | | | | | | | | | | | | | Add support for the Commercial IP Security Option (CIPSO) to the IPv4 network stack. CIPSO has become a de-facto standard for trusted/labeled networking amongst existing Trusted Operating Systems such as Trusted Solaris, HP-UX CMW, etc. This implementation is designed to be used with the NetLabel subsystem to provide explicit packet labeling to LSM developers. The CIPSO/IPv4 packet labeling works by the LSM calling a NetLabel API function which attaches a CIPSO label (IPv4 option) to a given socket; this in turn attaches the CIPSO label to every packet leaving the socket without any extra processing on the outbound side. On the inbound side the individual packet's sk_buff is examined through a call to a NetLabel API function to determine if a CIPSO/IPv4 label is present and if so the security attributes of the CIPSO label are returned to the caller of the NetLabel API function. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: core network changesPaul Moore2006-09-22
| | | | | | | | Changes to the core network stack to support the NetLabel subsystem. This includes changes to the IPv4 option handling to support CIPSO labels. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NetLabel]: documentationPaul Moore2006-09-22
| | | | | | | | | | | | Documentation for the NetLabel system, this includes a basic overview of how NetLabel works, how LSM developers can integrate it into their favorite LSM, as well as documentation on the CIPSO related sysctl variables. Also, due to the difficulty of finding expired IETF drafts, I am including the IETF CIPSO draft that is the basis of the NetLabel CIPSO implementation. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Fix build with SECURITY_NETWORK_XFRM disabled.Venkat Yekkirala2006-09-22
| | | | | | | | | | | | | | The following patch will fix the build problem (encountered by Andrew Morton) when SECURITY_NETWORK_XFRM is not enabled. As compared to git-net-selinux_xfrm_decode_session-build-fix.patch in -mm, this patch sets the return parameter sid to SECSID_NULL in selinux_xfrm_decode_session() and handles this value in the caller selinux_inet_conn_request() appropriately. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Auto-labeling of child socketsVenkat Yekkirala2006-09-22
| | | | | | | | | | | | | This automatically labels the TCP, Unix stream, and dccp child sockets as well as openreqs to be at the same MLS level as the peer. This will result in the selection of appropriately labeled IPSec Security Associations. This also uses the sock's sid (as opposed to the isec sid) in SELinux enforcement of secmark in rcv_skb and postroute_last hooks. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Default labeling of socket specific IPSec policiesVenkat Yekkirala2006-09-22
| | | | | | | | This defaults the label of socket-specific IPSec policies to be the same as the socket they are set on. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add flow labelingVenkat Yekkirala2006-09-22
| | | | | | | | | | | | | | | | | | | | | | This labels the flows that could utilize IPSec xfrms at the points the flows are defined so that IPSec policy and SAs at the right label can be used. The following protos are currently not handled, but they should continue to be able to use single-labeled IPSec like they currently do. ipmr ip_gre ipip igmp sit sctp ip6_tunnel (IPv6 over IPv6 tunnel device) decnet Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add security context to acquire messages using PF_KEYVenkat Yekkirala2006-09-22
| | | | | | | | | | | This includes the security context of a security association created for use by IKE in the acquire messages sent to IKE daemons using PF_KEY. This would allow the daemons to include the security context in the negotiation, so that the resultant association is unique to that security context. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add security context to acquire messages using netlinkSerge Hallyn2006-09-22
| | | | | | | | | | | This includes the security context of a security association created for use by IKE in the acquire messages sent to IKE daemons using netlink/xfrm_user. This would allow the daemons to include the security context in the negotiation, so that the resultant association is unique to that security context. Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Flow based matching of xfrm policy and stateVenkat Yekkirala2006-09-22
| | | | | | | | | This implements a seemless mechanism for xfrm policy selection and state matching based on the flow sid. This also includes the necessary SELinux enforcement pieces. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add security sid to flowiVenkat Yekkirala2006-09-22
| | | | | | | | This adds security to flow key for labeling of flows as also to allow for making flow cache lookups based on the security label seemless. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Add security sid to sockVenkat Yekkirala2006-09-22
| | | | | | | | | | | | | This adds security for IP sockets at the sock level. Security at the sock level is needed to enforce the SELinux security policy for security associations even when a sock is orphaned (such as in the TCP LAST_ACK state). This will also be used to enforce SELinux controls over data arriving at or leaving a child socket while it's still waiting to be accepted. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Define new SELinux service routineVenkat Yekkirala2006-09-22
| | | | | | | | | | | This defines a routine that combines the Type Enforcement portion of one sid with the MLS portion from the other sid to arrive at a new sid. This would be used to define a sid for a security association that is to be negotiated by IKE as well as for determing the sid for open requests and connection-oriented child sockets. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [MLSXFRM]: Granular IPSec associations for use in MLS environmentsVenkat Yekkirala2006-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current approach to labeling Security Associations for SELinux purposes uses a one-to-one mapping between xfrm policy rules and security associations. This doesn't address the needs of real world MLS (Multi-level System, traditional Bell-LaPadula) environments where a single xfrm policy rule (pertaining to a range, classified to secret for example) might need to map to multiple Security Associations (one each for classified, secret, top secret and all the compartments applicable to these security levels). This patch set addresses the above problem by allowing for the mapping of a single xfrm policy rule to multiple security associations, with each association used in the security context it is defined for. It also includes the security context to be used in IKE negotiation in the acquire messages sent to the IKE daemon so that a unique SA can be negotiated for each unique security context. A couple of bug fixes are also included; checks to make sure the SAs used by a packet match policy (security context-wise) on the inbound and also that the bundle used for the outbound matches the security context of the flow. This patch set also makes the use of the SELinux sid in flow cache lookups seemless by including the sid in the flow key itself. Also, open requests as well as connection-oriented child sockets are labeled automatically to be at the same level as the peer to allow for use of appropriately labeled IPSec associations. Description of changes: A "sid" member has been added to the flow cache key resulting in the sid being available at all needed locations and the flow cache lookups automatically using the sid. The flow sid is derived from the socket on the outbound and the SAs (unlabeled where an SA was not used) on the inbound. Outbound case: 1. Find policy for the socket. 2. OLD: Find an SA that matches the policy. NEW: Find an SA that matches BOTH the policy and the flow/socket. This is necessary since not every SA that matches the policy can be used for the flow/socket. Consider policy range Secret-TS, and SAs each for Secret and TS. We don't want a TS socket to use the Secret SA. Hence the additional check for the SA Vs. flow/socket. 3. NEW: When looking thru bundles for a policy, make sure the flow/socket can use the bundle. If a bundle is not found, create one, calling for IKE if necessary. If using IKE, include the security context in the acquire message to the IKE daemon. Inbound case: 1. OLD: Find policy for the socket. NEW: Find policy for the incoming packet based on the sid of the SA(s) it used or the unlabeled sid if no SAs were used. (Consider a case where a socket is "authorized" for two policies (unclassified-confidential, secret-top_secret). If the packet has come in using a secret SA, we really ought to be using the latter policy (secret-top_secret).) 2. OLD: BUG: No check to see if the SAs used by the packet agree with the policy sec_ctx-wise. (It was indicated in selinux_xfrm_sock_rcv_skb() that this was being accomplished by (x->id.spi == tmpl->id.spi || !tmpl->id.spi) in xfrm_state_ok, but it turns out tmpl->id.spi would normally be zero (unless xfrm policy rules specify one at the template level, which they usually don't). NEW: The socket is checked for access to the SAs used (based on the sid of the SAs) in selinux_xfrm_sock_rcv_skb(). Forward case: This would be Step 1 from the Inbound case, followed by Steps 2 and 3 from the Outbound case. Outstanding items/issues: - Timewait acknowledgements and such are generated in the current/upstream implementation using a NULL socket resulting in the any_socket sid (SYSTEM_HIGH) to be used. This problem is not addressed by this patch set. This patch: Add new flask definitions to SELinux Adds a new avperm "polmatch" to arbitrate flow/state access to a xfrm policy rule. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.infradead.org/~dwmw2/hdronelineLinus Torvalds2006-09-22
|\ | | | | | | | | | | | | * git://git.infradead.org/~dwmw2/hdroneline: [HEADERS] One line per header in Kbuild files to reduce conflicts Manual (trivial) conflict resolution in include/asm-s390/Kbuild
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 02:14:53 -0500