aboutsummaryrefslogtreecommitdiff
path: root/net/unix/diag.c
AgeCommit message (Collapse)AuthorFilesLines
2012-07-16net: make sock diag per-namespaceAndrey Vagin1-2/+7
Before this patch sock_diag works for init_net only and dumps information about sockets from all namespaces. This patch expands sock_diag for all name-spaces. It creates a netlink kernel socket for each netns and filters data during dumping. v2: filter accoding with netns in all places remove an unused variable. Cc: "David S. Miller" <[email protected]> Cc: Alexey Kuznetsov <[email protected]> Cc: James Morris <[email protected]> Cc: Hideaki YOSHIFUJI <[email protected]> Cc: Patrick McHardy <[email protected]> Cc: Pavel Emelyanov <[email protected]> CC: Eric Dumazet <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Andrew Vagin <[email protected]> Acked-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-06-27unix_diag: Do not use RTA_PUT() macrosThomas Graf1-47/+33
Also, no need to trim on nlmsg_put() failure, nothing has been added yet. We also want to use nlmsg_end(), nlmsg_new() and nlmsg_free(). Signed-off-by: Thomas Graf <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-06-26unix_diag: Move away from NLMSG_PUT().David S. Miller1-11/+13
And use nlmsg_data() while we're here too and remove useless casts. Signed-off-by: David S. Miller <[email protected]>
2012-06-08af_unix: speedup /proc/net/unixEric Dumazet1-2/+4
/proc/net/unix has quadratic behavior, and can hold unix_table_lock for a while if high number of unix sockets are alive. (90 ms for 200k sockets...) We already have a hash table, so its quite easy to use it. Problem is unbound sockets are still hashed in a single hash slot (unix_socket_table[UNIX_HASH_TABLE]) This patch also spreads unbound sockets to 256 hash slots, to speedup both /proc/net/unix and unix_diag. Time to read /proc/net/unix with 200k unix sockets : (time dd if=/proc/net/unix of=/dev/null bs=4k) before : 520 secs after : 2 secs Signed-off-by: Eric Dumazet <[email protected]> Cc: Steven Whitehouse <[email protected]> Cc: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-04-25net: sock_diag_handler structs can be constShan Wei1-1/+1
read only, so change it to const. Signed-off-by: Shan Wei <[email protected]> Acked-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-21Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile 1 from Al Viro: "This is _not_ all; in particular, Miklos' and Jan's stuff is not there yet." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits) ext4: initialization of ext4_li_mtx needs to be done earlier debugfs-related mode_t whack-a-mole hfsplus: add an ioctl to bless files hfsplus: change finder_info to u32 hfsplus: initialise userflags qnx4: new helper - try_extent() qnx4: get rid of qnx4_bread/qnx4_getblk take removal of PF_FORKNOEXEC to flush_old_exec() trim includes in inode.c um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it um: embed ->stub_pages[] into mmu_context gadgetfs: list_for_each_safe() misuse ocfs2: fix leaks on failure exits in module_init ecryptfs: make register_filesystem() the last potential failure exit ntfs: forgets to unregister sysctls on register_filesystem() failure logfs: missing cleanup on register_filesystem() failure jfs: mising cleanup on register_filesystem() failure make configfs_pin_fs() return root dentry on success configfs: configfs_create_dir() has parent dentry in dentry->d_parent configfs: sanitize configfs_create() ...
2012-03-20switch unix_sock to struct pathAl Viro1-1/+1
Signed-off-by: Al Viro <[email protected]>
2012-02-26netlink: add netlink_dump_control structure for netlink_dump_start()Pablo Neira Ayuso1-4/+6
Davem considers that the argument list of this interface is getting out of control. This patch tries to address this issue following his proposal: struct netlink_dump_control c = { .dump = dump, .done = done, ... }; netlink_dump_start(..., &c); Suggested by David S. Miller. Signed-off-by: Pablo Neira Ayuso <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-30unix_diag: Fixup RQLEN extension reportPavel Emelyanov1-1/+12
While it's not too late fix the recently added RQLEN diag extension to report rqlen and wqlen in the same way as TCP does. I.e. for listening sockets the ack backlog length (which is the input queue length for socket) in rqlen and the max ack backlog length in wqlen, and what the CINQ/OUTQ ioctls do for established. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-30unix_diag: Add the MEMINFO extensionPavel Emelyanov1-8/+12
[ Fix indentation of sock_diag*() calls. -DaveM ] Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-26unix: If we happen to find peer NULL when diag dumping, write zero.David S. Miller1-2/+1
Otherwise we leave uninitialized kernel memory in there. Reported-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-26unix_diag: Fix incoming connections nla lengthPavel Emelyanov1-1/+2
The NLA_PUT macro should accept the actual attribute length, not the amount of elements in array :( Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-20net: unix -- Add missing module.h inclusionCyrill Gorcunov1-0/+1
Otherwise getting | net/unix/diag.c:312:16: error: expected declaration specifiers or ‘...’ before string constant | net/unix/diag.c:313:1: error: expected declaration specifiers or ‘...’ before string constant Signed-off-by: Cyrill Gorcunov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Receive queue lenght NLAPavel Emelyanov1-0/+13
Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Pending connections IDs NLAPavel Emelyanov1-0/+39
When establishing a unix connection on stream sockets the server end receives an skb with socket in its receive queue. Report who is waiting for these ends to be accepted for listening sockets via NLA. There's a lokcing issue with this -- the unix sk state lock is required to access the peer, and it is taken under the listening sk's queue lock. Strictly speaking the queue lock should be taken inside the state lock, but since in this case these two sockets are different it shouldn't lead to deadlock. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Unix peer inode NLAPavel Emelyanov1-0/+24
Report the peer socket inode ID as NLA. With this it's finally possible to find out the other end of an interesting unix connection. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Unix inode info NLAPavel Emelyanov1-0/+21
Actually, the socket path if it's not anonymous doesn't give a clue to which file the socket is bound to. Even if the path is absolute, it can be unlinked and then new socket can be bound to it. With this NLA it's possible to check which file a particular socket is really bound to. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Unix socket name NLAPavel Emelyanov1-0/+20
Report the sun_path when requested as NLA. With leading '\0' if present but without the leading AF_UNIX bits. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Dumping exact socket corePavel Emelyanov1-1/+66
The socket inode is used as a key for lookup. This is effectively the only really unique ID of a unix socket, but using this for search currently has one problem -- it is O(number of sockets) :( Does it worth fixing this lookup or inventing some other ID for unix sockets? Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Dumping all sockets corePavel Emelyanov1-1/+75
Walk the unix sockets table and fill the core response structure, which includes type, state and inode. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-12-16unix_diag: Basic module skeletonPavel Emelyanov1-0/+57
Includes basic module_init/_exit functionality, dump/get_exact stubs and declares the basic API structures for request and response. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Powered by cgit, Gruvboxed by Blaster4385.