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path: root/net/caif/caif_socket.c
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2011-05-22caif: Fixes freeze on Link layer removal.sjur.brandeland@stericsson.com
CAIF Socket layer - caif_socket.c: - Plug mem-leak at reconnect. - Always call disconnect to cleanup CAIF stack. - Disconnect will always report success. CAIF configuration layer - cfcnfg.c - Disconnect must dismantle the caif stack correctly - Protect against faulty removals (check on id zero) CAIF mux layer - cfmuxl.c - When inserting new service layer in the MUX remove any old entries with the same ID. - When removing CAIF Link layer, remove the associated service layers before notifying service layers. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15caif: remove unesesarry exportssjur.brandeland@stericsson.com
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15caif: Bugfix debugfs directory name must be unique.sjur.brandeland@stericsson.com
Race condition caused debugfs_create_dir() to fail due to duplicate name. Use atomic counter to create unique directory name. net_ratelimit() is introduced to limit debug printouts. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15caif: Handle dev_queue_xmit errors.sjur.brandeland@stericsson.com
Do proper handling of dev_queue_xmit errors in order to avoid double free of skb and leaks in error conditions. In cfctrl pending requests are removed when CAIF Link layer goes down. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15caif: prepare support for namespacessjur.brandeland@stericsson.com
Use struct net to reference CAIF configuration object instead of static variables. Refactor functions caif_connect_client, caif_disconnect_client and squach files cfcnfg.c and caif_config_utils. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15caif: Protected in-flight packets using dev or sock refcont.sjur.brandeland@stericsson.com
CAIF Socket Layer and ip-interface registers reference counters in CAIF service layer. The functions sock_hold, sock_put and dev_hold, dev_put are used by CAIF Stack to protect from freeing memory while packets are in-flight. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-11caif: Don't resend if dev_queue_xmit fails.Sjur Brændeland
If CAIF Link Layer returns an error, we no longer try to re-build the CAIF packet and resend it. Instead, we simply return any transmission errors to the socket client. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-01-10caif: don't set connection request param size before copying dataDan Rosenberg
The size field should not be set until after the data is successfully copied in. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-03caif: Bugfix for socket priority, bindtodev and dbg channel.André Carvalho de Matos
Changes: o Bugfix: SO_PRIORITY for SOL_SOCKET could not be handled in caif's setsockopt, using the struct sock attribute priority instead. o Bugfix: SO_BINDTODEVICE for SOL_SOCKET could not be handled in caif's setsockopt, using the struct sock attribute ifindex instead. o Wrong assert statement for RFM layer segmentation. o CAIF Debug channels was not working over SPI, caif_payload_info containing padding info must be initialized. o Check on pointer before dereferencing when unregister dev in caif_dev.c Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-06Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/pcmcia/pcnet_cs.c net/caif/caif_socket.c
2010-10-05caif: fix two caif_connect() bugsEric Dumazet
caif_connect() might dereference a netdevice after dev_put() it. It also doesnt check dev_get_by_index() return value and could dereference a NULL pointer. Fix it, using RCU to avoid taking a reference. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-05caif: remove duplicated includeNicolas Kaiser
Remove duplicated include. Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21caif: Use default send and receive buffer size in caif_socket.Sjur Braendeland
CAIF sockets should use socket's default send and receive buffers sizes. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21caif: Minor fixes in log prints.Sjur Braendeland
Use pr_debug for flow control printouts, and refine an error printout. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-06net/caif: Use pr_fmtJoe Perches
This patch standardizes caif message logging prefixes. Add #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__ Add missing "\n"s to some logging messages Convert pr_warning to pr_warn This changes the logging message prefix from CAIF: to caif: for all uses but caif_socket.c and chnl_net.c. Those now use their filename without extension. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-20caif: Use link layer MTU instead of fixed MTUSjur Braendeland
Previously CAIF supported maximum transfer size of ~4050. The transfer size is now calculated dynamically based on the link layers mtu size. Signed-off-by: Sjur Braendeland@stericsson.com Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-20caif: Bugfix - RFM must support segmentation.Sjur Braendeland
CAIF Remote File Manager may send or receive more than 4050 bytes. Due to this The CAIF RFM service have to support segmentation. Signed-off-by: Sjur Braendeland@stericsson.com Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-31caif: remove unneeded null check in caif_connect()Dan Carpenter
We already dereferenced uaddr towards the start of the function when we checked that "uaddr->sa_family != AF_CAIF". Both the check here and the earlier check were added in bece7b2398d0: "caif: Rewritten socket implementation". Before that patch, we assumed that we recieved a valid pointer for uaddr, and based on that, I have removed this check. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23caif: Bugfix - use MSG_TRUNC in receiveSjur Braendeland
Fixed handling when skb don't fit in user buffer, instead of returning -EMSGSIZE, the buffer is truncated (just as unix seqpakcet does). Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23caif: Bugfix - missing spin_unlockSjur Braendeland
Splint found missing spin_unlock. Corrected this an some other trivial split warnings. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23caif: Bugfix - Poll can't return POLLHUP while connecting.Sjur Braendeland
Discovered bug when testing async connect. While connecting poll should not return POLLHUP, but POLLOUT when connected. Also fixed the sysfs flow-control-counters. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-23caif: Bugfix - wait_ev*_timeout returns long.Sjur Braendeland
Discovered bug when testing on 64bit architecture. Fixed by using long to store result from wait_event_interruptible_timeout. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-28caif: Rewritten socket implementationSjur Braendeland
Changes: This is a complete re-write of the socket layer. Making the socket implementation more aligned with the other socket layers and using more of the support functions available in sock.c. Lots of code is copied from af_unix (and some from af_irda). Non-blocking mode should be working as well. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-26net: use sk_sleep()Eric Dumazet
Commit aa395145 (net: sk_sleep() helper) missed three files in the conversion. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-20net: sk_sleep() helperEric Dumazet
Define a new function to return the waitqueue of a "struct sock". static inline wait_queue_head_t *sk_sleep(struct sock *sk) { return sk->sk_sleep; } Change all read occurrences of sk_sleep by a call to this function. Needed for a future RCU conversion. sk_sleep wont be a field directly available. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30net-caif: add CAIF socket implementationSjur Braendeland
Implementation of CAIF sockets for protocol and address family PF_CAIF and AF_CAIF. CAIF socket is connection oriented implementing SOCK_SEQPACKET and SOCK_STREAM interface with supporting blocking and non-blocking mode. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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