/* audit.h -- Auditing support * * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. * All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Written by Rickard E. (Rik) Faith * */ #ifndef _LINUX_AUDIT_H_ #define _LINUX_AUDIT_H_ #include #include #include #include /* Request and reply types */ #define AUDIT_GET 1000 /* Get status */ #define AUDIT_SET 1001 /* Set status (enable/disable/auditd) */ #define AUDIT_LIST 1002 /* List filtering rules */ #define AUDIT_ADD 1003 /* Add filtering rule */ #define AUDIT_DEL 1004 /* Delete filtering rule */ #define AUDIT_USER 1005 /* Send a message from user-space */ #define AUDIT_LOGIN 1006 /* Define the login id and informaiton */ #define AUDIT_KERNEL 2000 /* Asynchronous audit record. NOT A REQUEST. */ /* Rule flags */ #define AUDIT_PER_TASK 0x01 /* Apply rule at task creation (not syscall) */ #define AUDIT_AT_ENTRY 0x02 /* Apply rule at syscall entry */ #define AUDIT_AT_EXIT 0x04 /* Apply rule at syscall exit */ #define AUDIT_PREPEND 0x10 /* Prepend to front of list */ /* Rule actions */ #define AUDIT_NEVER 0 /* Do not build context if rule matches */ #define AUDIT_POSSIBLE 1 /* Build context if rule matches */ #define AUDIT_ALWAYS 2 /* Generate audit record if rule matches */ /* Rule structure sizes -- if these change, different AUDIT_ADD and * AUDIT_LIST commands must be implemented. */ #define AUDIT_MAX_FIELDS 64 #define AUDIT_BITMASK_SIZE 64 #define AUDIT_WORD(nr) ((__u32)((nr)/32)) #define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32)) /* Rule fields */ /* These are useful when checking the * task structure at task creation time * (AUDIT_PER_TASK). */ #define AUDIT_PID 0 #define AUDIT_UID 1 #define AUDIT_EUID 2 #define AUDIT_SUID 3 #define AUDIT_FSUID 4 #define AUDIT_GID 5 #define AUDIT_EGID 6 #define AUDIT_SGID 7 #define AUDIT_FSGID 8 #define AUDIT_LOGINUID 9 #define AUDIT_PERS 10 #define AUDIT_ARCH 11 /* These are ONLY useful when checking * at syscall exit time (AUDIT_AT_EXIT). */ #define AUDIT_DEVMAJOR 100 #define AUDIT_DEVMINOR 101 #define AUDIT_INODE 102 #define AUDIT_EXIT 103 #define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */ #define AUDIT_ARG0 200 #define AUDIT_ARG1 (AUDIT_ARG0+1) #define AUDIT_ARG2 (AUDIT_ARG0+2) #define AUDIT_ARG3 (AUDIT_ARG0+3) #define AUDIT_NEGATE 0x80000000 /* Status symbols */ /* Mask values */ #define AUDIT_STATUS_ENABLED 0x0001 #define AUDIT_STATUS_FAILURE 0x0002 #define AUDIT_STATUS_PID 0x0004 #define AUDIT_STATUS_RATE_LIMIT 0x0008 #define AUDIT_STATUS_BACKLOG_LIMIT 0x0010 /* Failure-to-log actions */ #define AUDIT_FAIL_SILENT 0 #define AUDIT_FAIL_PRINTK 1 #define AUDIT_FAIL_PANIC 2 /* distinguish syscall tables */ #define __AUDIT_ARCH_64BIT 0x80000000 #define __AUDIT_ARCH_LE 0x40000000 #define AUDIT_ARCH_ALPHA (EM_ALPHA|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE) #define AUDIT_ARCH_ARMEB (EM_ARM) #define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE) #define AUDIT_ARCH_FRV (EM_FRV) #define AUDIT_ARCH_H8300 (EM_H8_300) #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) #define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_M32R (EM_M32R) #define AUDIT_ARCH_M68K (EM_68K) #define AUDIT_ARCH_MIPS (EM_MIPS) #define AUDIT_ARCH_MIPSEL (EM_MIPS|__AUDIT_ARCH_LE) #define AUDIT_ARCH_MIPS64 (EM_MIPS|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_MIPSEL64 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_PARISC (EM_PARISC) #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_PPC (EM_PPC) #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_S390 (EM_S390) #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_SH (EM_SH) #define AUDIT_ARCH_SHEL (EM_SH|__AUDIT_ARCH_LE) #define AUDIT_ARCH_SH64 (EM_SH|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_SHEL64 (EM_SH|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_SPARC (EM_SPARC) #define AUDIT_ARCH_SPARC64 (EM_SPARC64|__AUDIT_ARCH_64BIT) #define AUDIT_ARCH_V850 (EM_V850|__AUDIT_ARCH_LE) #define AUDIT_ARCH_X86_64 (EM_X86_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) struct audit_message { struct nlmsghdr nlh; char data[1200]; }; struct audit_status { __u32 mask; /* Bit mask for valid entries */ __u32 enabled; /* 1 = enabled, 0 = disbaled */ __u32 failure; /* Failure-to-log action */ __u32 pid; /* pid of auditd process */ __u32 rate_limit; /* messages rate limit (per second) */ __u32 backlog_limit; /* waiting messages limit */ __u32 lost; /* messages lost */ __u32 backlog; /* messages waiting in queue */ }; struct audit_rule { /* for AUDIT_LIST, AUDIT_ADD, and AUDIT_DEL */ __u32 flags; /* AUDIT_PER_{TASK,CALL}, AUDIT_PREPEND */ __u32 action; /* AUDIT_NEVER, AUDIT_POSSIBLE, AUDIT_ALWAYS */ __u32 field_count; __u32 mask[AUDIT_BITMASK_SIZE]; __u32 fields[AUDIT_MAX_FIELDS]; __u32 values[AUDIT_MAX_FIELDS]; }; #endif