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2015-02-09tipc: move and rename the legacy nl api to "nl compat"Richard Alpe1-63/+4
The new netlink API is no longer "v2" but rather the standard API and the legacy API is now "nl compat". We split them into separate start/stop and put them in different files in order to further distinguish them. Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-12tipc: make netlink support net namespaceYing Xue1-2/+5
Currently tipc module only allows users sitting on "init_net" namespace to configure it through netlink interface. But now almost each tipc component is able to be aware of net namespace, so it's time to open the permission for users residing in other namespaces, allowing them to configure their own tipc stack instance through netlink interface. Signed-off-by: Ying Xue <ying.xue@windriver.com> Tested-by: Tero Aho <Tero.Aho@coriant.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-12tipc: involve namespace infrastructureYing Xue1-4/+6
Involve namespace infrastructure, make the "tipc_net_id" global variable aware of per namespace, and rename it to "net_id". In order that the conversion can be successfully done, an instance of networking namespace must be passed to relevant functions, allowing them to access the "net_id" variable of per namespace. Signed-off-by: Ying Xue <ying.xue@windriver.com> Tested-by: Tero Aho <Tero.Aho@coriant.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add name table dump to new netlink apiRichard Alpe1-1/+8
Add TIPC_NL_NAME_TABLE_GET command to the new tipc netlink API. This command supports dumping the name table of all nodes. Netlink logical layout of name table response message: -> name table -> publication -> type -> lower -> upper -> scope -> node -> ref -> key Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add net set to new netlink apiRichard Alpe1-0/+5
Add TIPC_NL_NET_SET command to the new tipc netlink API. This command can set the network id and network (tipc) address. Netlink logical layout of network set message: -> net [ -> id ] [ -> address ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add net dump to new netlink apiRichard Alpe1-1/+8
Add TIPC_NL_NET_GET command to the new tipc netlink API. This command dumps the network id of the node. Netlink logical layout of returned network data: -> net -> id Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add node get/dump to new netlink apiRichard Alpe1-0/+7
Add TIPC_NL_NODE_GET to the new tipc netlink API. This command can dump the address and node status of all nodes in the tipc cluster. Netlink logical layout of returned node/address data: -> node -> address -> up flag Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add media set to new netlink apiRichard Alpe1-0/+5
Add TIPC_NL_MEDIA_SET command to the new tipc netlink API. This command can set one or more link properties for a particular media. Netlink logical layout of bearer set message: -> media -> name -> link properties [ -> tolerance ] [ -> priority ] [ -> window ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add media get/dump to new netlink apiRichard Alpe1-0/+7
Add TIPC_NL_MEDIA_GET command to the new tipc netlink API. This command supports dumping all information about all defined media as well as getting all information about a specific media. The information about a media includes name and link properties. Netlink logical layout of media get response message: -> media -> name -> link properties -> tolerance -> priority -> window Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add link stat reset to new netlink apiRichard Alpe1-0/+5
Add TIPC_NL_LINK_RESET_STATS command to the new netlink API. This command resets the link statistics for a particular link. Netlink logical layout of link reset message: -> link -> name Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add link set to new netlink apiRichard Alpe1-0/+5
Add TIPC_NL_LINK_SET to the new tipc netlink API. This command can set one or more link properties for a particular link. Netlink logical layout of link set message: -> link -> name -> properties [ -> tolerance ] [ -> priority ] [ -> window ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add link get/dump to new netlink apiRichard Alpe1-1/+9
Add TIPC_NL_LINK_GET command to the new tipc netlink API. This command supports dumping all information about all links (including the broadcast link) or getting all information about a specific link (not the broadcast link). The information about a link includes name, transmission info, properties and link statistics. As the tipc broadcast link is special we unfortunately have to treat it specially. It is a deliberate decision not to abstract the broadcast link on this (API) level. Netlink logical layout of link response message: -> port -> name -> MTU -> RX -> TX -> up flag -> active flag -> properties -> priority -> tolerance -> window -> statistics -> rx_info -> rx_fragments -> rx_fragmented -> rx_bundles -> rx_bundled -> tx_info -> tx_fragments -> tx_fragmented -> tx_bundles -> tx_bundled -> msg_prof_tot -> msg_len_cnt -> msg_len_tot -> msg_len_p0 -> msg_len_p1 -> msg_len_p2 -> msg_len_p3 -> msg_len_p4 -> msg_len_p5 -> msg_len_p6 -> rx_states -> rx_probes -> rx_nacks -> rx_deferred -> tx_states -> tx_probes -> tx_nacks -> tx_acks -> retransmitted -> duplicates -> link_congs -> max_queue -> avg_queue Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add publication dump to new netlink apiRichard Alpe1-0/+17
Add TIPC_NL_PUBL_GET command to the new tipc netlink API. This command supports dumping of all publications for a specific socket. Netlink logical layout of request message: -> socket -> reference Netlink logical layout of response message: -> publication -> type -> lower -> upper Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add sock dump to new netlink apiRichard Alpe1-0/+7
Add TIPC_NL_SOCK_GET command to the new tipc netlink API. This command supports dumping of all available sockets with their associated connection or publication(s). It could be extended to reply with a single socket if the NLM_F_DUMP isn't set. The information about a socket includes reference, address, connection information / publication information. Netlink logical layout of response message: -> socket -> reference -> address [ -> connection -> node -> socket [ -> connected flag -> type -> instance ] ] [ -> publication flag ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add bearer set to new netlink apiRichard Alpe1-0/+5
Add TIPC_NL_BEARER_SET command to the new tipc netlink API. This command can set one or more link properties for a particular bearer. Netlink logical layout of bearer set message: -> bearer -> name -> link properties [ -> tolerance ] [ -> priority ] [ -> window ] Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add bearer get/dump to new netlink apiRichard Alpe1-0/+6
Add TIPC_NL_BEARER_GET command to the new tipc netlink API. This command supports dumping all data about all bearers or getting all information about a specific bearer. The information about a bearer includes name, link priorities and domain. Netlink logical layout of bearer get message: -> bearer -> name Netlink logical layout of returned bearer information: -> bearer -> name -> link properties -> priority -> tolerance -> window -> domain Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-21tipc: add bearer disable/enable to new netlink apiRichard Alpe1-1/+41
A new netlink API for tipc that can disable or enable a tipc bearer. The new API is separated from the old API because of a bug in the user space client (tipc-config). The problem is that older versions of tipc-config has a very low receive limit and adding commands to the legacy genl_opts struct causes the ctrl_getfamily() response message to grow, subsequently breaking the tool. The new API utilizes netlink policies for input validation. Where the top-level netlink attributes are tipc-logical entities, like bearer. The top level entities then contain nested attributes. In this case a name, nested link properties and a domain. Netlink commands implemented in this patch: TIPC_NL_BEARER_ENABLE TIPC_NL_BEARER_DISABLE Netlink logical layout of bearer enable message: -> bearer -> name [ -> domain ] [ -> properties -> priority ] Netlink logical layout of bearer disable message: -> bearer -> name Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-24net: Use netlink_ns_capable to verify the permisions of netlink messagesEric W. Biederman1-1/+1
It is possible by passing a netlink socket to a more privileged executable and then to fool that executable into writing to the socket data that happens to be valid netlink message to do something that privileged executable did not intend to do. To keep this from happening replace bare capable and ns_capable calls with netlink_capable, netlink_net_calls and netlink_ns_capable calls. Which act the same as the previous calls except they verify that the opener of the socket had the desired permissions as well. Reported-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-22tipc: remove all enabled flags from all tipc componentsYing Xue1-8/+0
When tipc module is inserted, many tipc components are initialized one by one. During the initialization period, if one of them is failed, tipc_core_stop() will be called to stop all components whatever corresponding components are created or not. To avoid to release uncreated ones, relevant components have to add necessary enabled flags indicating whether they are created or not. But in the initialization stage, if one component is unsuccessfully created, we will just destroy successfully created components before the failed component instead of all components. All enabled flags defined in components, in turn, become redundant. Additionally it's also unnecessary to identify whether table.types is NULL in tipc_nametbl_stop() because name stable has been definitely created successfully when tipc_nametbl_stop() is called. Cc: Jon Maloy <jon.maloy@ericsson.com> Cc: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-11-19genetlink: only pass array to genl_register_family_with_ops()Johannes Berg1-5/+6
As suggested by David Miller, make genl_register_family_with_ops() a macro and pass only the array, evaluating ARRAY_SIZE() in the macro, this is a little safer. The openvswitch has some indirection, assing ops/n_ops directly in that code. This might ultimately just assign the pointers in the family initializations, saving the struct genl_family_and_ops and code (once mcast groups are handled differently.) Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-28net-next: replace obsolete NLMSG_* with type safe nlmsg_*Hong zhi guo1-3/+3
Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-10netlink: Rename pid to portid to avoid confusionEric W. Biederman1-1/+1
It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-13tipc: use standard printk shortcut macros (pr_err etc.)Erik Hugne1-1/+1
All messages should go directly to the kernel log. The TIPC specific error, warning, info and debug trace macro's are removed and all references replaced with pr_err, pr_warn, pr_info and pr_debug. Commonly used sub-strings are explicitly declared as a const char to reduce .text size. Note that this means the debug messages (changed to pr_debug), are now enabled through dynamic debugging, instead of a TIPC specific Kconfig option (TIPC_DEBUG). The latter will be phased out completely Signed-off-by: Erik Hugne <erik.hugne@ericsson.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> [PG: use pr_fmt as suggested by Joe Perches <joe@perches.com>] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2009-07-12genetlink: make netns awareJohannes Berg1-1/+1
This makes generic netlink network namespace aware. No generic netlink families except for the controller family are made namespace aware, they need to be checked one by one and then set the family->netnsok member to true. A new function genlmsg_multicast_netns() is introduced to allow sending a multicast message in a given namespace, for example when it applies to an object that lives in that namespace, a new function genlmsg_multicast_allns() to send a message to all network namespaces (for objects that do not have an associated netns). The function genlmsg_multicast() is changed to multicast the message in just init_net, which is currently correct for all generic netlink families since they only work in init_net right now. Some will later want to work in all net namespaces because they do not care about the netns at all -- those will have to be converted to use one of the new functions genlmsg_multicast_allns() or genlmsg_multicast_netns() whenever they are made netns aware in some way. After this patch families can easily decide whether or not they should be available in all net namespaces. Many genl families us it for objects not related to networking and should therefore be available in all namespaces, but that will have to be done on a per family basis. Note that this doesn't touch on the checkpoint/restart problem where network namespaces could be used, genl families and multicast groups are numbered globally and I see no easy way of changing that, especially since it must be possible to multicast to all network namespaces for those families that do not care about netns. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21tipc: Use genl_register_family_with_ops()Michał Mirosław1-22/+16
Use genl_register_family_with_ops() instead of a copy. This also changes netlink related variable names to be kernel-wide unique for consistency with other users. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-21tipc: Fix skb_under_panic when configuring TIPC without privilegesAllan Stephens1-7/+9
This patch prevents a TIPC configuration command requiring network administrator privileges from triggering an skbuff underrun if it is issued by a process lacking those privileges. The revised error handling code avoids the use of a potentially uninitialized global variable by transforming the unauthorized command into a new command, then following the standard command processing path to generate the required error message. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-23[TIPC]: Fix infinite loop in netlink handlerFlorian Westphal1-1/+1
The tipc netlink config handler uses the nlmsg_pid from the request header as destination for its reply. If the application initialized nlmsg_pid to 0, the reply is looped back to the kernel, causing hangup. Fix: use nlmsg_pid of the skb that triggered the request. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETLINK]: Introduce nlmsg_hdr() helperArnaldo Carvalho de Melo1-1/+1
For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the number of direct accesses to skb->data and for consistency with all the other cast skb member helpers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] TIPC: Fix whitespace errors.YOSHIFUJI Hideaki1-8/+8
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-18[TIPC] Avoid polluting the global namespacePer Liden1-8/+8
This patch adds a tipc_ prefix to all externally visible symbols. Signed-off-by: Per Liden <per.liden@ericsson.com>
2006-01-13[PATCH] genetlink: don't touch module ref countPer Liden1-1/+0
Increasing the module ref count at registration will block the module from ever being unloaded. In fact, genetlink should not care about the owner at all. This patch removes the owner field from the struct registered with genetlink. Signed-off-by: Per Liden <per.liden@ericsson.com> Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-12[TIPC] More updates of file headersPer Liden1-0/+1
Updated copyright notice to include the year the file was actually created. Information about file creation dates was extracted from the files in the old CVS repository at tipc.sourceforge.net. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] Update of file headersPer Liden1-1/+0
The copyright statements from different parts of Ericsson have been merged into one. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] Cleaned up info/warn/err macrosPer Liden1-1/+1
Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] License header updatePer Liden1-19/+23
The license header in each file now more clearly state that this code is licensed under a dual BSD/GPL. Before this was only evident if you looked at the MODULE_LICENSE line in core.c. Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC} Fixed bug in disc_timeout()Jon Maloy1-1/+3
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
2006-01-12[TIPC] Use dynamically allocated family id with NETLINK_GENERICPer Liden1-2/+2
Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
2006-01-12[TIPC] Initial mergePer Liden1-0/+107
TIPC (Transparent Inter Process Communication) is a protocol designed for intra cluster communication. For more information see http://tipc.sourceforge.net Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.