From 7f13da40e36c84d0d046b7adbd060af7d3717250 Mon Sep 17 00:00:00 2001 From: Amy Griffis Date: Thu, 29 Mar 2007 18:00:37 -0400 Subject: [PATCH] add SIGNAL syscall class (v3) Add a syscall class for sending signals. Signed-off-by: Amy Griffis Signed-off-by: Al Viro --- arch/x86_64/kernel/audit.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/x86_64/kernel') diff --git a/arch/x86_64/kernel/audit.c b/arch/x86_64/kernel/audit.c index 21f33387bef3..b970de66ee59 100644 --- a/arch/x86_64/kernel/audit.c +++ b/arch/x86_64/kernel/audit.c @@ -23,6 +23,11 @@ static unsigned chattr_class[] = { ~0U }; +static unsigned signal_class[] = { +#include +~0U +}; + int audit_classify_syscall(int abi, unsigned syscall) { #ifdef CONFIG_IA32_EMULATION @@ -49,15 +54,18 @@ static int __init audit_classes_init(void) extern __u32 ia32_write_class[]; extern __u32 ia32_read_class[]; extern __u32 ia32_chattr_class[]; + extern __u32 ia32_signal_class[]; audit_register_class(AUDIT_CLASS_WRITE_32, ia32_write_class); audit_register_class(AUDIT_CLASS_READ_32, ia32_read_class); audit_register_class(AUDIT_CLASS_DIR_WRITE_32, ia32_dir_class); audit_register_class(AUDIT_CLASS_CHATTR_32, ia32_chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL_32, ia32_signal_class); #endif audit_register_class(AUDIT_CLASS_WRITE, write_class); audit_register_class(AUDIT_CLASS_READ, read_class); audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); return 0; } -- cgit v1.2.2 From e54dc2431d740a79a6bd013babade99d71b1714f Mon Sep 17 00:00:00 2001 From: Amy Griffis Date: Thu, 29 Mar 2007 18:01:04 -0400 Subject: [PATCH] audit signal recipients When auditing syscalls that send signals, log the pid and security context for each target process. Optimize the data collection by adding a counter for signal-related rules, and avoiding allocating an aux struct unless we have more than one target process. For process groups, collect pid/context data in blocks of 16. Move the audit_signal_info() hook up in check_kill_permission() so we audit attempts where permission is denied. Signed-off-by: Amy Griffis Signed-off-by: Al Viro --- arch/x86_64/kernel/audit.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/x86_64/kernel') diff --git a/arch/x86_64/kernel/audit.c b/arch/x86_64/kernel/audit.c index b970de66ee59..06d3e5a14d9d 100644 --- a/arch/x86_64/kernel/audit.c +++ b/arch/x86_64/kernel/audit.c @@ -28,6 +28,15 @@ static unsigned signal_class[] = { ~0U }; +int audit_classify_arch(int arch) +{ +#ifdef CONFIG_IA32_EMULATION + if (arch == AUDIT_ARCH_I386) + return 1; +#endif + return 0; +} + int audit_classify_syscall(int abi, unsigned syscall) { #ifdef CONFIG_IA32_EMULATION -- cgit v1.2.2