Linux kernel source tree https://git.amat.us/linux/atom/include/uapi/asm-generic?h=v3.10.17 2013-03-31T23:44:20Z 2013-03-31T23:44:20Z Keller, Jacob E jacob.e.keller@intel.com 2013-03-28T11:19:25Z urn:sha1:7d4c04fc170087119727119074e72445f2bb192b Currently, when a socket receives something on the error queue it only wakes up the socket on select if it is in the "read" list, that is the socket has something to read. It is useful also to wake the socket if it is in the error list, which would enable software to wait on error queue packets without waking up for regular data on the socket. The main use case is for receiving timestamped transmit packets which return the timestamp to the socket via the error queue. This enables an application to select on the socket for the error queue only instead of for the regular traffic. -v2- * Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file * Modified every socket poll function that checks error queue Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Cc: Jeffrey Kirsher <jeffrey.t.kirsher@intel.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Matthew Vick <matthew.vick@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2013-02-24T02:50:11Z Linus Torvalds torvalds@linux-foundation.org 2013-02-24T02:50:11Z urn:sha1:9e2d59ad580d590134285f361a0e80f0e98c0207 Pull signal handling cleanups from Al Viro: "This is the first pile; another one will come a bit later and will contain SYSCALL_DEFINE-related patches. - a bunch of signal-related syscalls (both native and compat) unified. - a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE (fixing several potential problems with missing argument validation, while we are at it) - a lot of now-pointless wrappers killed - a couple of architectures (cris and hexagon) forgot to save altstack settings into sigframe, even though they used the (uninitialized) values in sigreturn; fixed. - microblaze fixes for delivery of multiple signals arriving at once - saner set of helpers for signal delivery introduced, several architectures switched to using those." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits) x86: convert to ksignal sparc: convert to ksignal arm: switch to struct ksignal * passing alpha: pass k_sigaction and siginfo_t using ksignal pointer burying unused conditionals make do_sigaltstack() static arm64: switch to generic old sigaction() (compat-only) arm64: switch to generic compat rt_sigaction() arm64: switch compat to generic old sigsuspend arm64: switch to generic compat rt_sigqueueinfo() arm64: switch to generic compat rt_sigpending() arm64: switch to generic compat rt_sigprocmask() arm64: switch to generic sigaltstack sparc: switch to generic old sigsuspend sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE sparc: kill sign-extending wrappers for native syscalls kill sparc32_open() sparc: switch to use of generic old sigaction sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE mips: switch to generic sys_fork() and sys_clone() ... 2013-02-03T23:16:21Z Al Viro viro@zeniv.linux.org.uk 2012-12-25T18:58:56Z urn:sha1:03e275959850f51754d3952489c36f4b1410856d note that the only systems that are going to care are big-endian 64bit ones with 32bit compat enabled - little-endian bitmaps are not sensitive to granularity. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 2013-02-03T20:09:22Z Al Viro viro@zeniv.linux.org.uk 2012-11-26T03:24:19Z urn:sha1:574c4866e33d648520a8bd5bf6f573ea6e554e88 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 2013-02-03T20:09:22Z Al Viro viro@zeniv.linux.org.uk 2012-11-26T02:20:05Z urn:sha1:92a3ce4a1e0047215aa0a0b30cc333bd32b866a8 Only alpha and sparc are unusual - they have ka_restorer in it. And nobody needs that exposed to userland. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 2013-01-23T18:44:00Z Tom Herbert therbert@google.com 2013-01-22T09:49:50Z urn:sha1:055dc21a1d1d219608cd4baac7d0683fb2cbbe8a Definitions and macros for implementing soreusport. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2013-01-17T08:21:25Z Vincent Bernat bernat@luffy.cx 2013-01-16T21:55:49Z urn:sha1:d59577b6ffd313d0ab3be39cb1ab47e29bdc9182 While a privileged program can open a raw socket, attach some restrictive filter and drop its privileges (or send the socket to an unprivileged program through some Unix socket), the filter can still be removed or modified by the unprivileged program. This commit adds a socket option to lock the filter (SO_LOCK_FILTER) preventing any modification of a socket filter program. This is similar to OpenBSD BIOCLOCK ioctl on bpf sockets, except even root is not allowed change/drop the filter. The state of the lock can be read with getsockopt(). No error is triggered if the state is not changed. -EPERM is returned when a user tries to remove the lock or to change/remove the filter while the lock is active. The check is done directly in sk_attach_filter() and sk_detach_filter() and does not affect only setsockopt() syscall. Signed-off-by: Vincent Bernat <bernat@luffy.cx> Signed-off-by: David S. Miller <davem@davemloft.net> 2012-12-21T02:05:28Z Linus Torvalds torvalds@linux-foundation.org 2012-12-21T02:05:28Z urn:sha1:54d46ea993744c5408e39ce0cb4851e13cbea716 Pull signal handling cleanups from Al Viro: "sigaltstack infrastructure + conversion for x86, alpha and um, COMPAT_SYSCALL_DEFINE infrastructure. Note that there are several conflicts between "unify SS_ONSTACK/SS_DISABLE definitions" and UAPI patches in mainline; resolution is trivial - just remove definitions of SS_ONSTACK and SS_DISABLED from arch/*/uapi/asm/signal.h; they are all identical and include/uapi/linux/signal.h contains the unified variant." Fixed up conflicts as per Al. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: alpha: switch to generic sigaltstack new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those generic compat_sys_sigaltstack() introduce generic sys_sigaltstack(), switch x86 and um to it new helper: compat_user_stack_pointer() new helper: restore_altstack() unify SS_ONSTACK/SS_DISABLE definitions new helper: current_user_stack_pointer() missing user_stack_pointer() instances Bury the conditionals from kernel_thread/kernel_execve series COMPAT_SYSCALL_DEFINE: infrastructure 2012-12-19T23:07:39Z Al Viro viro@zeniv.linux.org.uk 2012-11-18T20:13:17Z urn:sha1:031b6566983ad9c0247087f039af22b3f87596a3 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 2012-12-19T15:55:08Z Linus Torvalds torvalds@linux-foundation.org 2012-12-19T15:55:08Z urn:sha1:7a684c452e2589f3ddd7e2d466b4f747d3715ad9 Pull module update from Rusty Russell: "Nothing all that exciting; a new module-from-fd syscall for those who want to verify the source of the module (ChromeOS) and/or use standard IMA on it or other security hooks." * tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: MODSIGN: Fix kbuild output when using default extra_certificates MODSIGN: Avoid using .incbin in C source modules: don't hand 0 to vmalloc. module: Remove a extra null character at the top of module->strtab. ASN.1: Use the ASN1_LONG_TAG and ASN1_INDEFINITE_LENGTH constants ASN.1: Define indefinite length marker constant moduleparam: use __UNIQUE_ID() __UNIQUE_ID() MODSIGN: Add modules_sign make target powerpc: add finit_module syscall. ima: support new kernel module syscall add finit_module syscall to asm-generic ARM: add finit_module syscall to ARM security: introduce kernel_module_from_file hook module: add flags arg to sys_finit_module() module: add syscall to load module from fd