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kernel/auditsc.c
64.4 KB
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/* auditsc.c -- System-call auditing support |
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* Handles all system-call specific auditing features. * * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina. |
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* Copyright 2005 Hewlett-Packard Development Company, L.P. |
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* Copyright (C) 2005, 2006 IBM Corporation |
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* 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 <faith@redhat.com> * * Many of the ideas implemented here are from Stephen C. Tweedie, * especially the idea of avoiding a copy by using getname. * * The method for actual interception of syscall entry and exit (not in * this file -- see entry.S) is based on a GPL'd patch written by * okir@suse.de and Copyright 2003 SuSE Linux AG. * |
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* POSIX message queue support added by George Wilson <ltcgcw@us.ibm.com>, * 2006. * |
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* The support of additional filter rules compares (>, <, >=, <=) was * added by Dustin Kirkland <dustin.kirkland@us.ibm.com>, 2005. * |
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* Modified by Amy Griffis <amy.griffis@hp.com> to collect additional * filesystem information. |
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* * Subject and object context labeling support added by <danjones@us.ibm.com> * and <dustin.kirkland@us.ibm.com> for LSPP certification compliance. |
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*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/init.h> |
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#include <asm/types.h> |
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#include <linux/atomic.h> |
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#include <linux/fs.h> #include <linux/namei.h> |
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#include <linux/mm.h> |
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#include <linux/export.h> |
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#include <linux/slab.h> |
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#include <linux/mount.h> |
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#include <linux/socket.h> |
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#include <linux/mqueue.h> |
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#include <linux/audit.h> #include <linux/personality.h> #include <linux/time.h> |
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#include <linux/netlink.h> |
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#include <linux/compiler.h> |
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#include <asm/unistd.h> |
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#include <linux/security.h> |
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#include <linux/list.h> |
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#include <linux/binfmts.h> |
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#include <linux/highmem.h> |
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#include <linux/syscalls.h> |
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#include <asm/syscall.h> |
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#include <linux/capability.h> |
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#include <linux/fs_struct.h> |
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#include <linux/compat.h> |
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#include <linux/ctype.h> |
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#include <linux/string.h> |
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#include <linux/uaccess.h> |
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#include <uapi/linux/limits.h> |
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|
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#include "audit.h" |
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|
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/* flags stating the success for a syscall */ #define AUDITSC_INVALID 0 #define AUDITSC_SUCCESS 1 #define AUDITSC_FAILURE 2 |
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/* no execve audit message should be longer than this (userspace limits), * see the note near the top of audit_log_execve_info() about this value */ |
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#define MAX_EXECVE_AUDIT_LEN 7500 |
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/* max length to print of cmdline/proctitle value during audit */ #define MAX_PROCTITLE_AUDIT_LEN 128 |
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/* number of audit rules */ int audit_n_rules; |
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/* determines whether we collect data for signals sent */ int audit_signals; |
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struct audit_aux_data { struct audit_aux_data *next; int type; }; #define AUDIT_AUX_IPCPERM 0 |
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/* Number of target pids per aux struct. */ #define AUDIT_AUX_PIDS 16 |
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struct audit_aux_data_pids { struct audit_aux_data d; pid_t target_pid[AUDIT_AUX_PIDS]; |
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kuid_t target_auid[AUDIT_AUX_PIDS]; |
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kuid_t target_uid[AUDIT_AUX_PIDS]; |
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unsigned int target_sessionid[AUDIT_AUX_PIDS]; |
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u32 target_sid[AUDIT_AUX_PIDS]; |
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char target_comm[AUDIT_AUX_PIDS][TASK_COMM_LEN]; |
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int pid_count; }; |
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struct audit_aux_data_bprm_fcaps { struct audit_aux_data d; struct audit_cap_data fcap; unsigned int fcap_ver; struct audit_cap_data old_pcap; struct audit_cap_data new_pcap; }; |
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struct audit_tree_refs { struct audit_tree_refs *next; struct audit_chunk *c[31]; }; |
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static int audit_match_perm(struct audit_context *ctx, int mask) { |
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unsigned n; |
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if (unlikely(!ctx)) return 0; |
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n = ctx->major; |
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|
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switch (audit_classify_syscall(ctx->arch, n)) { case 0: /* native */ if ((mask & AUDIT_PERM_WRITE) && audit_match_class(AUDIT_CLASS_WRITE, n)) return 1; if ((mask & AUDIT_PERM_READ) && audit_match_class(AUDIT_CLASS_READ, n)) return 1; if ((mask & AUDIT_PERM_ATTR) && audit_match_class(AUDIT_CLASS_CHATTR, n)) return 1; return 0; case 1: /* 32bit on biarch */ if ((mask & AUDIT_PERM_WRITE) && audit_match_class(AUDIT_CLASS_WRITE_32, n)) return 1; if ((mask & AUDIT_PERM_READ) && audit_match_class(AUDIT_CLASS_READ_32, n)) return 1; if ((mask & AUDIT_PERM_ATTR) && audit_match_class(AUDIT_CLASS_CHATTR_32, n)) return 1; return 0; case 2: /* open */ return mask & ACC_MODE(ctx->argv[1]); case 3: /* openat */ return mask & ACC_MODE(ctx->argv[2]); case 4: /* socketcall */ return ((mask & AUDIT_PERM_WRITE) && ctx->argv[0] == SYS_BIND); case 5: /* execve */ return mask & AUDIT_PERM_EXEC; default: return 0; } } |
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static int audit_match_filetype(struct audit_context *ctx, int val) |
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{ |
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struct audit_names *n; |
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umode_t mode = (umode_t)val; |
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if (unlikely(!ctx)) return 0; |
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list_for_each_entry(n, &ctx->names_list, list) { |
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if ((n->ino != AUDIT_INO_UNSET) && |
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((n->mode & S_IFMT) == mode)) |
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return 1; } |
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|
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return 0; |
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} |
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/* * We keep a linked list of fixed-sized (31 pointer) arrays of audit_chunk *; * ->first_trees points to its beginning, ->trees - to the current end of data. * ->tree_count is the number of free entries in array pointed to by ->trees. * Original condition is (NULL, NULL, 0); as soon as it grows we never revert to NULL, * "empty" becomes (p, p, 31) afterwards. We don't shrink the list (and seriously, * it's going to remain 1-element for almost any setup) until we free context itself. * References in it _are_ dropped - at the same time we free/drop aux stuff. */ #ifdef CONFIG_AUDIT_TREE |
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static void audit_set_auditable(struct audit_context *ctx) { if (!ctx->prio) { ctx->prio = 1; ctx->current_state = AUDIT_RECORD_CONTEXT; } } |
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static int put_tree_ref(struct audit_context *ctx, struct audit_chunk *chunk) { struct audit_tree_refs *p = ctx->trees; int left = ctx->tree_count; if (likely(left)) { p->c[--left] = chunk; ctx->tree_count = left; return 1; } if (!p) return 0; p = p->next; if (p) { p->c[30] = chunk; ctx->trees = p; ctx->tree_count = 30; return 1; } return 0; } static int grow_tree_refs(struct audit_context *ctx) { struct audit_tree_refs *p = ctx->trees; ctx->trees = kzalloc(sizeof(struct audit_tree_refs), GFP_KERNEL); if (!ctx->trees) { ctx->trees = p; return 0; } if (p) p->next = ctx->trees; else ctx->first_trees = ctx->trees; ctx->tree_count = 31; return 1; } #endif static void unroll_tree_refs(struct audit_context *ctx, struct audit_tree_refs *p, int count) { #ifdef CONFIG_AUDIT_TREE struct audit_tree_refs *q; int n; if (!p) { /* we started with empty chain */ p = ctx->first_trees; count = 31; /* if the very first allocation has failed, nothing to do */ if (!p) return; } n = count; for (q = p; q != ctx->trees; q = q->next, n = 31) { while (n--) { audit_put_chunk(q->c[n]); q->c[n] = NULL; } } while (n-- > ctx->tree_count) { audit_put_chunk(q->c[n]); q->c[n] = NULL; } ctx->trees = p; ctx->tree_count = count; #endif } static void free_tree_refs(struct audit_context *ctx) { struct audit_tree_refs *p, *q; for (p = ctx->first_trees; p; p = q) { q = p->next; kfree(p); } } static int match_tree_refs(struct audit_context *ctx, struct audit_tree *tree) { #ifdef CONFIG_AUDIT_TREE struct audit_tree_refs *p; int n; if (!tree) return 0; /* full ones */ for (p = ctx->first_trees; p != ctx->trees; p = p->next) { for (n = 0; n < 31; n++) if (audit_tree_match(p->c[n], tree)) return 1; } /* partial */ if (p) { for (n = ctx->tree_count; n < 31; n++) if (audit_tree_match(p->c[n], tree)) return 1; } #endif return 0; } |
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static int audit_compare_uid(kuid_t uid, struct audit_names *name, struct audit_field *f, struct audit_context *ctx) |
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{ struct audit_names *n; |
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int rc; |
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|
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if (name) { |
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rc = audit_uid_comparator(uid, f->op, name->uid); |
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if (rc) return rc; } |
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|
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if (ctx) { list_for_each_entry(n, &ctx->names_list, list) { |
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rc = audit_uid_comparator(uid, f->op, n->uid); if (rc) return rc; } } return 0; } |
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|
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static int audit_compare_gid(kgid_t gid, struct audit_names *name, struct audit_field *f, struct audit_context *ctx) { struct audit_names *n; int rc; if (name) { rc = audit_gid_comparator(gid, f->op, name->gid); if (rc) return rc; } if (ctx) { list_for_each_entry(n, &ctx->names_list, list) { rc = audit_gid_comparator(gid, f->op, n->gid); |
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if (rc) return rc; } } return 0; } |
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static int audit_field_compare(struct task_struct *tsk, const struct cred *cred, struct audit_field *f, struct audit_context *ctx, struct audit_names *name) { |
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switch (f->val) { |
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/* process to file object comparisons */ |
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case AUDIT_COMPARE_UID_TO_OBJ_UID: |
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return audit_compare_uid(cred->uid, name, f, ctx); |
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case AUDIT_COMPARE_GID_TO_OBJ_GID: |
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return audit_compare_gid(cred->gid, name, f, ctx); |
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case AUDIT_COMPARE_EUID_TO_OBJ_UID: |
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return audit_compare_uid(cred->euid, name, f, ctx); |
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case AUDIT_COMPARE_EGID_TO_OBJ_GID: |
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return audit_compare_gid(cred->egid, name, f, ctx); |
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case AUDIT_COMPARE_AUID_TO_OBJ_UID: |
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return audit_compare_uid(tsk->loginuid, name, f, ctx); |
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case AUDIT_COMPARE_SUID_TO_OBJ_UID: |
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return audit_compare_uid(cred->suid, name, f, ctx); |
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case AUDIT_COMPARE_SGID_TO_OBJ_GID: |
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return audit_compare_gid(cred->sgid, name, f, ctx); |
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case AUDIT_COMPARE_FSUID_TO_OBJ_UID: |
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return audit_compare_uid(cred->fsuid, name, f, ctx); |
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case AUDIT_COMPARE_FSGID_TO_OBJ_GID: |
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return audit_compare_gid(cred->fsgid, name, f, ctx); |
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/* uid comparisons */ case AUDIT_COMPARE_UID_TO_AUID: |
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return audit_uid_comparator(cred->uid, f->op, tsk->loginuid); |
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case AUDIT_COMPARE_UID_TO_EUID: |
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return audit_uid_comparator(cred->uid, f->op, cred->euid); |
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case AUDIT_COMPARE_UID_TO_SUID: |
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return audit_uid_comparator(cred->uid, f->op, cred->suid); |
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case AUDIT_COMPARE_UID_TO_FSUID: |
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return audit_uid_comparator(cred->uid, f->op, cred->fsuid); |
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/* auid comparisons */ case AUDIT_COMPARE_AUID_TO_EUID: |
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return audit_uid_comparator(tsk->loginuid, f->op, cred->euid); |
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case AUDIT_COMPARE_AUID_TO_SUID: |
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return audit_uid_comparator(tsk->loginuid, f->op, cred->suid); |
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case AUDIT_COMPARE_AUID_TO_FSUID: |
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return audit_uid_comparator(tsk->loginuid, f->op, cred->fsuid); |
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/* euid comparisons */ case AUDIT_COMPARE_EUID_TO_SUID: |
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return audit_uid_comparator(cred->euid, f->op, cred->suid); |
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case AUDIT_COMPARE_EUID_TO_FSUID: |
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return audit_uid_comparator(cred->euid, f->op, cred->fsuid); |
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/* suid comparisons */ case AUDIT_COMPARE_SUID_TO_FSUID: |
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return audit_uid_comparator(cred->suid, f->op, cred->fsuid); |
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/* gid comparisons */ case AUDIT_COMPARE_GID_TO_EGID: |
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return audit_gid_comparator(cred->gid, f->op, cred->egid); |
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case AUDIT_COMPARE_GID_TO_SGID: |
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return audit_gid_comparator(cred->gid, f->op, cred->sgid); |
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case AUDIT_COMPARE_GID_TO_FSGID: |
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return audit_gid_comparator(cred->gid, f->op, cred->fsgid); |
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/* egid comparisons */ case AUDIT_COMPARE_EGID_TO_SGID: |
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return audit_gid_comparator(cred->egid, f->op, cred->sgid); |
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case AUDIT_COMPARE_EGID_TO_FSGID: |
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return audit_gid_comparator(cred->egid, f->op, cred->fsgid); |
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/* sgid comparison */ case AUDIT_COMPARE_SGID_TO_FSGID: |
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return audit_gid_comparator(cred->sgid, f->op, cred->fsgid); |
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default: WARN(1, "Missing AUDIT_COMPARE define. Report as a bug "); return 0; } return 0; } |
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/* Determine if any context name data matches a rule's watch data */ |
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/* Compare a task_struct with an audit_rule. Return 1 on match, 0 |
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* otherwise. * * If task_creation is true, this is an explicit indication that we are * filtering a task rule at task creation time. This and tsk == current are * the only situations where tsk->cred may be accessed without an rcu read lock. */ |
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static int audit_filter_rules(struct task_struct *tsk, |
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struct audit_krule *rule, |
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struct audit_context *ctx, |
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struct audit_names *name, |
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enum audit_state *state, bool task_creation) |
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{ |
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const struct cred *cred; |
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int i, need_sid = 1; |
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u32 sid; |
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cred = rcu_dereference_check(tsk->cred, tsk == current || task_creation); |
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for (i = 0; i < rule->field_count; i++) { |
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struct audit_field *f = &rule->fields[i]; |
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struct audit_names *n; |
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int result = 0; |
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pid_t pid; |
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|
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switch (f->type) { |
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case AUDIT_PID: |
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pid = task_tgid_nr(tsk); |
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result = audit_comparator(pid, f->op, f->val); |
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442 |
break; |
3c66251e5 [PATCH] add filte... |
443 |
case AUDIT_PPID: |
419c58f11 [PATCH] PPID filt... |
444 445 |
if (ctx) { if (!ctx->ppid) |
c92cdeb45 audit: convert PP... |
446 |
ctx->ppid = task_ppid_nr(tsk); |
3c66251e5 [PATCH] add filte... |
447 |
result = audit_comparator(ctx->ppid, f->op, f->val); |
419c58f11 [PATCH] PPID filt... |
448 |
} |
3c66251e5 [PATCH] add filte... |
449 |
break; |
34d99af52 audit: implement ... |
450 451 452 |
case AUDIT_EXE: result = audit_exe_compare(tsk, rule->exe); break; |
1da177e4c Linux-2.6.12-rc2 |
453 |
case AUDIT_UID: |
ca57ec0f0 audit: Add typesp... |
454 |
result = audit_uid_comparator(cred->uid, f->op, f->uid); |
1da177e4c Linux-2.6.12-rc2 |
455 456 |
break; case AUDIT_EUID: |
ca57ec0f0 audit: Add typesp... |
457 |
result = audit_uid_comparator(cred->euid, f->op, f->uid); |
1da177e4c Linux-2.6.12-rc2 |
458 459 |
break; case AUDIT_SUID: |
ca57ec0f0 audit: Add typesp... |
460 |
result = audit_uid_comparator(cred->suid, f->op, f->uid); |
1da177e4c Linux-2.6.12-rc2 |
461 462 |
break; case AUDIT_FSUID: |
ca57ec0f0 audit: Add typesp... |
463 |
result = audit_uid_comparator(cred->fsuid, f->op, f->uid); |
1da177e4c Linux-2.6.12-rc2 |
464 465 |
break; case AUDIT_GID: |
ca57ec0f0 audit: Add typesp... |
466 |
result = audit_gid_comparator(cred->gid, f->op, f->gid); |
37eebe39c audit: improve GI... |
467 468 469 470 471 472 473 |
if (f->op == Audit_equal) { if (!result) result = in_group_p(f->gid); } else if (f->op == Audit_not_equal) { if (result) result = !in_group_p(f->gid); } |
1da177e4c Linux-2.6.12-rc2 |
474 475 |
break; case AUDIT_EGID: |
ca57ec0f0 audit: Add typesp... |
476 |
result = audit_gid_comparator(cred->egid, f->op, f->gid); |
37eebe39c audit: improve GI... |
477 478 479 480 481 482 483 |
if (f->op == Audit_equal) { if (!result) result = in_egroup_p(f->gid); } else if (f->op == Audit_not_equal) { if (result) result = !in_egroup_p(f->gid); } |
1da177e4c Linux-2.6.12-rc2 |
484 485 |
break; case AUDIT_SGID: |
ca57ec0f0 audit: Add typesp... |
486 |
result = audit_gid_comparator(cred->sgid, f->op, f->gid); |
1da177e4c Linux-2.6.12-rc2 |
487 488 |
break; case AUDIT_FSGID: |
ca57ec0f0 audit: Add typesp... |
489 |
result = audit_gid_comparator(cred->fsgid, f->op, f->gid); |
1da177e4c Linux-2.6.12-rc2 |
490 491 |
break; case AUDIT_PERS: |
93315ed6d [PATCH] audit str... |
492 |
result = audit_comparator(tsk->personality, f->op, f->val); |
1da177e4c Linux-2.6.12-rc2 |
493 |
break; |
2fd6f58ba [AUDIT] Don't all... |
494 |
case AUDIT_ARCH: |
9f8dbe9c9 whitespace fixes:... |
495 |
if (ctx) |
93315ed6d [PATCH] audit str... |
496 |
result = audit_comparator(ctx->arch, f->op, f->val); |
2fd6f58ba [AUDIT] Don't all... |
497 |
break; |
1da177e4c Linux-2.6.12-rc2 |
498 499 500 |
case AUDIT_EXIT: if (ctx && ctx->return_valid) |
93315ed6d [PATCH] audit str... |
501 |
result = audit_comparator(ctx->return_code, f->op, f->val); |
1da177e4c Linux-2.6.12-rc2 |
502 503 |
break; case AUDIT_SUCCESS: |
b01f2cc1c [AUDIT] Allow fil... |
504 |
if (ctx && ctx->return_valid) { |
93315ed6d [PATCH] audit str... |
505 506 |
if (f->val) result = audit_comparator(ctx->return_valid, f->op, AUDITSC_SUCCESS); |
b01f2cc1c [AUDIT] Allow fil... |
507 |
else |
93315ed6d [PATCH] audit str... |
508 |
result = audit_comparator(ctx->return_valid, f->op, AUDITSC_FAILURE); |
b01f2cc1c [AUDIT] Allow fil... |
509 |
} |
1da177e4c Linux-2.6.12-rc2 |
510 511 |
break; case AUDIT_DEVMAJOR: |
16c174bd9 audit: check curr... |
512 513 514 515 516 |
if (name) { if (audit_comparator(MAJOR(name->dev), f->op, f->val) || audit_comparator(MAJOR(name->rdev), f->op, f->val)) ++result; } else if (ctx) { |
5195d8e21 audit: dynamicall... |
517 |
list_for_each_entry(n, &ctx->names_list, list) { |
16c174bd9 audit: check curr... |
518 519 |
if (audit_comparator(MAJOR(n->dev), f->op, f->val) || audit_comparator(MAJOR(n->rdev), f->op, f->val)) { |
1da177e4c Linux-2.6.12-rc2 |
520 521 522 523 524 525 526 |
++result; break; } } } break; case AUDIT_DEVMINOR: |
16c174bd9 audit: check curr... |
527 528 529 530 531 |
if (name) { if (audit_comparator(MINOR(name->dev), f->op, f->val) || audit_comparator(MINOR(name->rdev), f->op, f->val)) ++result; } else if (ctx) { |
5195d8e21 audit: dynamicall... |
532 |
list_for_each_entry(n, &ctx->names_list, list) { |
16c174bd9 audit: check curr... |
533 534 |
if (audit_comparator(MINOR(n->dev), f->op, f->val) || audit_comparator(MINOR(n->rdev), f->op, f->val)) { |
1da177e4c Linux-2.6.12-rc2 |
535 536 537 538 539 540 541 |
++result; break; } } } break; case AUDIT_INODE: |
f368c07d7 [PATCH] audit: pa... |
542 |
if (name) |
db510fc5c audit: update AUD... |
543 |
result = audit_comparator(name->ino, f->op, f->val); |
f368c07d7 [PATCH] audit: pa... |
544 |
else if (ctx) { |
5195d8e21 audit: dynamicall... |
545 546 |
list_for_each_entry(n, &ctx->names_list, list) { if (audit_comparator(n->ino, f->op, f->val)) { |
1da177e4c Linux-2.6.12-rc2 |
547 548 549 550 551 552 |
++result; break; } } } break; |
efaffd6e4 audit: allow matc... |
553 554 |
case AUDIT_OBJ_UID: if (name) { |
ca57ec0f0 audit: Add typesp... |
555 |
result = audit_uid_comparator(name->uid, f->op, f->uid); |
efaffd6e4 audit: allow matc... |
556 557 |
} else if (ctx) { list_for_each_entry(n, &ctx->names_list, list) { |
ca57ec0f0 audit: Add typesp... |
558 |
if (audit_uid_comparator(n->uid, f->op, f->uid)) { |
efaffd6e4 audit: allow matc... |
559 560 561 562 563 564 |
++result; break; } } } break; |
54d3218b3 audit: allow audi... |
565 566 |
case AUDIT_OBJ_GID: if (name) { |
ca57ec0f0 audit: Add typesp... |
567 |
result = audit_gid_comparator(name->gid, f->op, f->gid); |
54d3218b3 audit: allow audi... |
568 569 |
} else if (ctx) { list_for_each_entry(n, &ctx->names_list, list) { |
ca57ec0f0 audit: Add typesp... |
570 |
if (audit_gid_comparator(n->gid, f->op, f->gid)) { |
54d3218b3 audit: allow audi... |
571 572 573 574 575 576 |
++result; break; } } } break; |
f368c07d7 [PATCH] audit: pa... |
577 |
case AUDIT_WATCH: |
ae7b8f410 Audit: clean up t... |
578 579 |
if (name) result = audit_watch_compare(rule->watch, name->ino, name->dev); |
f368c07d7 [PATCH] audit: pa... |
580 |
break; |
74c3cbe33 [PATCH] audit: wa... |
581 582 583 584 |
case AUDIT_DIR: if (ctx) result = match_tree_refs(ctx, rule->tree); break; |
1da177e4c Linux-2.6.12-rc2 |
585 |
case AUDIT_LOGINUID: |
5c1390c9f audit: obsolete a... |
586 |
result = audit_uid_comparator(tsk->loginuid, f->op, f->uid); |
1da177e4c Linux-2.6.12-rc2 |
587 |
break; |
780a7654c audit: Make testi... |
588 589 590 |
case AUDIT_LOGINUID_SET: result = audit_comparator(audit_loginuid_set(tsk), f->op, f->val); break; |
3a6b9f85c [PATCH] audit: re... |
591 592 593 594 595 |
case AUDIT_SUBJ_USER: case AUDIT_SUBJ_ROLE: case AUDIT_SUBJ_TYPE: case AUDIT_SUBJ_SEN: case AUDIT_SUBJ_CLR: |
3dc7e3153 [PATCH] support f... |
596 597 598 599 600 |
/* NOTE: this may return negative values indicating a temporary error. We simply treat this as a match for now to avoid losing information that may be wanted. An error message will also be logged upon error */ |
04305e4af Audit: Final rena... |
601 |
if (f->lsm_rule) { |
2ad312d20 [PATCH] Audit Fil... |
602 |
if (need_sid) { |
2a862b32f Audit: use new LS... |
603 |
security_task_getsecid(tsk, &sid); |
2ad312d20 [PATCH] Audit Fil... |
604 605 |
need_sid = 0; } |
d7a96f3a1 Audit: internally... |
606 |
result = security_audit_rule_match(sid, f->type, |
3dc7e3153 [PATCH] support f... |
607 |
f->op, |
04305e4af Audit: Final rena... |
608 |
f->lsm_rule, |
3dc7e3153 [PATCH] support f... |
609 |
ctx); |
2ad312d20 [PATCH] Audit Fil... |
610 |
} |
3dc7e3153 [PATCH] support f... |
611 |
break; |
6e5a2d1d3 [PATCH] audit: su... |
612 613 614 615 616 617 618 |
case AUDIT_OBJ_USER: case AUDIT_OBJ_ROLE: case AUDIT_OBJ_TYPE: case AUDIT_OBJ_LEV_LOW: case AUDIT_OBJ_LEV_HIGH: /* The above note for AUDIT_SUBJ_USER...AUDIT_SUBJ_CLR also applies here */ |
04305e4af Audit: Final rena... |
619 |
if (f->lsm_rule) { |
6e5a2d1d3 [PATCH] audit: su... |
620 621 |
/* Find files that match */ if (name) { |
d7a96f3a1 Audit: internally... |
622 |
result = security_audit_rule_match( |
6e5a2d1d3 [PATCH] audit: su... |
623 |
name->osid, f->type, f->op, |
04305e4af Audit: Final rena... |
624 |
f->lsm_rule, ctx); |
6e5a2d1d3 [PATCH] audit: su... |
625 |
} else if (ctx) { |
5195d8e21 audit: dynamicall... |
626 627 628 629 |
list_for_each_entry(n, &ctx->names_list, list) { if (security_audit_rule_match(n->osid, f->type, f->op, f->lsm_rule, ctx)) { |
6e5a2d1d3 [PATCH] audit: su... |
630 631 632 633 634 635 |
++result; break; } } } /* Find ipc objects that match */ |
a33e67510 sanitize audit_ip... |
636 637 638 639 640 641 |
if (!ctx || ctx->type != AUDIT_IPC) break; if (security_audit_rule_match(ctx->ipc.osid, f->type, f->op, f->lsm_rule, ctx)) ++result; |
6e5a2d1d3 [PATCH] audit: su... |
642 643 |
} break; |
1da177e4c Linux-2.6.12-rc2 |
644 645 646 647 648 |
case AUDIT_ARG0: case AUDIT_ARG1: case AUDIT_ARG2: case AUDIT_ARG3: if (ctx) |
93315ed6d [PATCH] audit str... |
649 |
result = audit_comparator(ctx->argv[f->type-AUDIT_ARG0], f->op, f->val); |
1da177e4c Linux-2.6.12-rc2 |
650 |
break; |
5adc8a6ad [PATCH] add rule ... |
651 652 653 654 |
case AUDIT_FILTERKEY: /* ignore this field for filtering */ result = 1; break; |
55669bfa1 [PATCH] audit: AU... |
655 656 657 |
case AUDIT_PERM: result = audit_match_perm(ctx, f->val); break; |
8b67dca94 [PATCH] new predi... |
658 659 660 |
case AUDIT_FILETYPE: result = audit_match_filetype(ctx, f->val); break; |
02d86a568 audit: allow inte... |
661 662 663 |
case AUDIT_FIELD_COMPARE: result = audit_field_compare(tsk, cred, f, ctx, name); break; |
1da177e4c Linux-2.6.12-rc2 |
664 |
} |
f56298835 audit: acquire cr... |
665 |
if (!result) |
1da177e4c Linux-2.6.12-rc2 |
666 667 |
return 0; } |
0590b9335 fixing audit rule... |
668 669 670 671 672 673 674 675 676 677 |
if (ctx) { if (rule->prio <= ctx->prio) return 0; if (rule->filterkey) { kfree(ctx->filterkey); ctx->filterkey = kstrdup(rule->filterkey, GFP_ATOMIC); } ctx->prio = rule->prio; } |
1da177e4c Linux-2.6.12-rc2 |
678 |
switch (rule->action) { |
66b12abc8 audit: fix some h... |
679 680 681 682 683 684 |
case AUDIT_NEVER: *state = AUDIT_DISABLED; break; case AUDIT_ALWAYS: *state = AUDIT_RECORD_CONTEXT; break; |
1da177e4c Linux-2.6.12-rc2 |
685 686 687 688 689 690 691 692 |
} return 1; } /* At process creation time, we can determine if system-call auditing is * completely disabled for this task. Since we only have the task * structure at this point, we can only check uid and gid. */ |
e048e02c8 make sure that fi... |
693 |
static enum audit_state audit_filter_task(struct task_struct *tsk, char **key) |
1da177e4c Linux-2.6.12-rc2 |
694 695 696 697 698 |
{ struct audit_entry *e; enum audit_state state; rcu_read_lock(); |
0f45aa18e AUDIT: Allow filt... |
699 |
list_for_each_entry_rcu(e, &audit_filter_list[AUDIT_FILTER_TASK], list) { |
f56298835 audit: acquire cr... |
700 701 |
if (audit_filter_rules(tsk, &e->rule, NULL, NULL, &state, true)) { |
e048e02c8 make sure that fi... |
702 703 |
if (state == AUDIT_RECORD_CONTEXT) *key = kstrdup(e->rule.filterkey, GFP_ATOMIC); |
1da177e4c Linux-2.6.12-rc2 |
704 705 706 707 708 709 710 |
rcu_read_unlock(); return state; } } rcu_read_unlock(); return AUDIT_BUILD_CONTEXT; } |
a3c549311 auditsc: audit_kr... |
711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 |
static int audit_in_mask(const struct audit_krule *rule, unsigned long val) { int word, bit; if (val > 0xffffffff) return false; word = AUDIT_WORD(val); if (word >= AUDIT_BITMASK_SIZE) return false; bit = AUDIT_BIT(val); return rule->mask[word] & bit; } |
1da177e4c Linux-2.6.12-rc2 |
726 727 |
/* At syscall entry and exit time, this filter is called if the * audit_state is not low enough that auditing cannot take place, but is |
23f32d18a AUDIT: Fix some s... |
728 |
* also not high enough that we already know we have to write an audit |
b0dd25a82 [PATCH] AUDIT: ke... |
729 |
* record (i.e., the state is AUDIT_SETUP_CONTEXT or AUDIT_BUILD_CONTEXT). |
1da177e4c Linux-2.6.12-rc2 |
730 731 732 733 734 735 |
*/ static enum audit_state audit_filter_syscall(struct task_struct *tsk, struct audit_context *ctx, struct list_head *list) { struct audit_entry *e; |
c38964959 AUDIT: Speed up a... |
736 |
enum audit_state state; |
1da177e4c Linux-2.6.12-rc2 |
737 |
|
351bb7225 AUDIT: Fix compil... |
738 |
if (audit_pid && tsk->tgid == audit_pid) |
f7056d64a AUDIT: Really exe... |
739 |
return AUDIT_DISABLED; |
1da177e4c Linux-2.6.12-rc2 |
740 |
rcu_read_lock(); |
c38964959 AUDIT: Speed up a... |
741 |
if (!list_empty(list)) { |
b63862f46 [PATCH] Filter ru... |
742 |
list_for_each_entry_rcu(e, list, list) { |
a3c549311 auditsc: audit_kr... |
743 |
if (audit_in_mask(&e->rule, ctx->major) && |
f368c07d7 [PATCH] audit: pa... |
744 |
audit_filter_rules(tsk, &e->rule, ctx, NULL, |
f56298835 audit: acquire cr... |
745 |
&state, false)) { |
f368c07d7 [PATCH] audit: pa... |
746 |
rcu_read_unlock(); |
0590b9335 fixing audit rule... |
747 |
ctx->current_state = state; |
f368c07d7 [PATCH] audit: pa... |
748 749 750 751 752 753 754 |
return state; } } } rcu_read_unlock(); return AUDIT_BUILD_CONTEXT; } |
5195d8e21 audit: dynamicall... |
755 756 757 758 759 760 761 |
/* * Given an audit_name check the inode hash table to see if they match. * Called holding the rcu read lock to protect the use of audit_inode_hash */ static int audit_filter_inode_name(struct task_struct *tsk, struct audit_names *n, struct audit_context *ctx) { |
5195d8e21 audit: dynamicall... |
762 763 764 765 |
int h = audit_hash_ino((u32)n->ino); struct list_head *list = &audit_inode_hash[h]; struct audit_entry *e; enum audit_state state; |
5195d8e21 audit: dynamicall... |
766 767 768 769 |
if (list_empty(list)) return 0; list_for_each_entry_rcu(e, list, list) { |
a3c549311 auditsc: audit_kr... |
770 |
if (audit_in_mask(&e->rule, ctx->major) && |
5195d8e21 audit: dynamicall... |
771 772 773 774 775 776 777 778 779 780 |
audit_filter_rules(tsk, &e->rule, ctx, n, &state, false)) { ctx->current_state = state; return 1; } } return 0; } /* At syscall exit time, this filter is called if any audit_names have been |
f368c07d7 [PATCH] audit: pa... |
781 |
* collected during syscall processing. We only check rules in sublists at hash |
5195d8e21 audit: dynamicall... |
782 |
* buckets applicable to the inode numbers in audit_names. |
f368c07d7 [PATCH] audit: pa... |
783 784 |
* Regarding audit_state, same rules apply as for audit_filter_syscall(). */ |
0590b9335 fixing audit rule... |
785 |
void audit_filter_inodes(struct task_struct *tsk, struct audit_context *ctx) |
f368c07d7 [PATCH] audit: pa... |
786 |
{ |
5195d8e21 audit: dynamicall... |
787 |
struct audit_names *n; |
f368c07d7 [PATCH] audit: pa... |
788 789 |
if (audit_pid && tsk->tgid == audit_pid) |
0590b9335 fixing audit rule... |
790 |
return; |
f368c07d7 [PATCH] audit: pa... |
791 792 |
rcu_read_lock(); |
f368c07d7 [PATCH] audit: pa... |
793 |
|
5195d8e21 audit: dynamicall... |
794 795 796 |
list_for_each_entry(n, &ctx->names_list, list) { if (audit_filter_inode_name(tsk, n, ctx)) break; |
0f45aa18e AUDIT: Allow filt... |
797 798 |
} rcu_read_unlock(); |
0f45aa18e AUDIT: Allow filt... |
799 |
} |
4a3eb726d audit: rename the... |
800 801 |
/* Transfer the audit context pointer to the caller, clearing it in the tsk's struct */ static inline struct audit_context *audit_take_context(struct task_struct *tsk, |
1da177e4c Linux-2.6.12-rc2 |
802 |
int return_valid, |
6d208da89 audit: Fix possib... |
803 |
long return_code) |
1da177e4c Linux-2.6.12-rc2 |
804 805 |
{ struct audit_context *context = tsk->audit_context; |
56179a6ec audit: drop some ... |
806 |
if (!context) |
1da177e4c Linux-2.6.12-rc2 |
807 808 |
return NULL; context->return_valid = return_valid; |
f701b75ed [AUDIT] return EI... |
809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 |
/* * we need to fix up the return code in the audit logs if the actual * return codes are later going to be fixed up by the arch specific * signal handlers * * This is actually a test for: * (rc == ERESTARTSYS ) || (rc == ERESTARTNOINTR) || * (rc == ERESTARTNOHAND) || (rc == ERESTART_RESTARTBLOCK) * * but is faster than a bunch of || */ if (unlikely(return_code <= -ERESTARTSYS) && (return_code >= -ERESTART_RESTARTBLOCK) && (return_code != -ENOIOCTLCMD)) context->return_code = -EINTR; else context->return_code = return_code; |
1da177e4c Linux-2.6.12-rc2 |
827 |
|
0590b9335 fixing audit rule... |
828 829 830 |
if (context->in_syscall && !context->dummy) { audit_filter_syscall(tsk, context, &audit_filter_list[AUDIT_FILTER_EXIT]); audit_filter_inodes(tsk, context); |
1da177e4c Linux-2.6.12-rc2 |
831 |
} |
1da177e4c Linux-2.6.12-rc2 |
832 833 834 |
tsk->audit_context = NULL; return context; } |
3f1c82502 audit: Audit proc... |
835 836 837 838 839 840 |
static inline void audit_proctitle_free(struct audit_context *context) { kfree(context->proctitle.value); context->proctitle.value = NULL; context->proctitle.len = 0; } |
1da177e4c Linux-2.6.12-rc2 |
841 842 |
static inline void audit_free_names(struct audit_context *context) { |
5195d8e21 audit: dynamicall... |
843 |
struct audit_names *n, *next; |
1da177e4c Linux-2.6.12-rc2 |
844 |
|
5195d8e21 audit: dynamicall... |
845 846 |
list_for_each_entry_safe(n, next, &context->names_list, list) { list_del(&n->list); |
55422d0bd audit: replace ge... |
847 848 |
if (n->name) putname(n->name); |
5195d8e21 audit: dynamicall... |
849 850 |
if (n->should_free) kfree(n); |
8c8570fb8 [PATCH] Capture s... |
851 |
} |
1da177e4c Linux-2.6.12-rc2 |
852 |
context->name_count = 0; |
44707fdf5 d_path: Use struc... |
853 854 855 |
path_put(&context->pwd); context->pwd.dentry = NULL; context->pwd.mnt = NULL; |
1da177e4c Linux-2.6.12-rc2 |
856 857 858 859 860 861 862 863 864 865 |
} static inline void audit_free_aux(struct audit_context *context) { struct audit_aux_data *aux; while ((aux = context->aux)) { context->aux = aux->next; kfree(aux); } |
e54dc2431 [PATCH] audit sig... |
866 867 868 869 |
while ((aux = context->aux_pids)) { context->aux_pids = aux->next; kfree(aux); } |
1da177e4c Linux-2.6.12-rc2 |
870 |
} |
1da177e4c Linux-2.6.12-rc2 |
871 872 873 |
static inline struct audit_context *audit_alloc_context(enum audit_state state) { struct audit_context *context; |
17c6ee707 auditsc: Use kzal... |
874 875 |
context = kzalloc(sizeof(*context), GFP_KERNEL); if (!context) |
1da177e4c Linux-2.6.12-rc2 |
876 |
return NULL; |
e2c5adc88 auditsc: remove a... |
877 878 |
context->state = state; context->prio = state == AUDIT_RECORD_CONTEXT ? ~0ULL : 0; |
916d75761 Fix rule eviction... |
879 |
INIT_LIST_HEAD(&context->killed_trees); |
5195d8e21 audit: dynamicall... |
880 |
INIT_LIST_HEAD(&context->names_list); |
1da177e4c Linux-2.6.12-rc2 |
881 882 |
return context; } |
b0dd25a82 [PATCH] AUDIT: ke... |
883 884 885 886 887 |
/** * audit_alloc - allocate an audit context block for a task * @tsk: task * * Filter on the task information and allocate a per-task audit context |
1da177e4c Linux-2.6.12-rc2 |
888 889 |
* if necessary. Doing so turns on system call auditing for the * specified task. This is called from copy_process, so no lock is |
b0dd25a82 [PATCH] AUDIT: ke... |
890 891 |
* needed. */ |
1da177e4c Linux-2.6.12-rc2 |
892 893 894 895 |
int audit_alloc(struct task_struct *tsk) { struct audit_context *context; enum audit_state state; |
e048e02c8 make sure that fi... |
896 |
char *key = NULL; |
1da177e4c Linux-2.6.12-rc2 |
897 |
|
b593d384e [AUDIT] create co... |
898 |
if (likely(!audit_ever_enabled)) |
1da177e4c Linux-2.6.12-rc2 |
899 |
return 0; /* Return if not auditing. */ |
e048e02c8 make sure that fi... |
900 |
state = audit_filter_task(tsk, &key); |
d48d80512 audit_alloc: clea... |
901 902 |
if (state == AUDIT_DISABLED) { clear_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT); |
1da177e4c Linux-2.6.12-rc2 |
903 |
return 0; |
d48d80512 audit_alloc: clea... |
904 |
} |
1da177e4c Linux-2.6.12-rc2 |
905 906 |
if (!(context = audit_alloc_context(state))) { |
e048e02c8 make sure that fi... |
907 |
kfree(key); |
1da177e4c Linux-2.6.12-rc2 |
908 909 910 |
audit_log_lost("out of memory in audit_alloc"); return -ENOMEM; } |
e048e02c8 make sure that fi... |
911 |
context->filterkey = key; |
1da177e4c Linux-2.6.12-rc2 |
912 |
|
1da177e4c Linux-2.6.12-rc2 |
913 914 915 916 917 918 919 |
tsk->audit_context = context; set_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT); return 0; } static inline void audit_free_context(struct audit_context *context) { |
c62d773a3 audit: no nested ... |
920 921 922 923 924 925 |
audit_free_names(context); unroll_tree_refs(context, NULL, 0); free_tree_refs(context); audit_free_aux(context); kfree(context->filterkey); kfree(context->sockaddr); |
3f1c82502 audit: Audit proc... |
926 |
audit_proctitle_free(context); |
c62d773a3 audit: no nested ... |
927 |
kfree(context); |
1da177e4c Linux-2.6.12-rc2 |
928 |
} |
e54dc2431 [PATCH] audit sig... |
929 |
static int audit_log_pid_context(struct audit_context *context, pid_t pid, |
cca080d9b userns: Convert a... |
930 |
kuid_t auid, kuid_t uid, unsigned int sessionid, |
4746ec5b0 [AUDIT] add sessi... |
931 |
u32 sid, char *comm) |
e54dc2431 [PATCH] audit sig... |
932 933 |
{ struct audit_buffer *ab; |
2a862b32f Audit: use new LS... |
934 |
char *ctx = NULL; |
e54dc2431 [PATCH] audit sig... |
935 936 937 938 939 |
u32 len; int rc = 0; ab = audit_log_start(context, GFP_KERNEL, AUDIT_OBJ_PID); if (!ab) |
6246ccab9 [AUDIT] do not pa... |
940 |
return rc; |
e54dc2431 [PATCH] audit sig... |
941 |
|
e1760bd5f userns: Convert t... |
942 943 |
audit_log_format(ab, "opid=%d oauid=%d ouid=%d oses=%d", pid, from_kuid(&init_user_ns, auid), |
cca080d9b userns: Convert a... |
944 |
from_kuid(&init_user_ns, uid), sessionid); |
ad395abec Audit: do not pri... |
945 946 947 948 949 950 951 952 |
if (sid) { if (security_secid_to_secctx(sid, &ctx, &len)) { audit_log_format(ab, " obj=(none)"); rc = 1; } else { audit_log_format(ab, " obj=%s", ctx); security_release_secctx(ctx, len); } |
2a862b32f Audit: use new LS... |
953 |
} |
c2a7780ef [AUDIT] collect u... |
954 955 |
audit_log_format(ab, " ocomm="); audit_log_untrustedstring(ab, comm); |
e54dc2431 [PATCH] audit sig... |
956 |
audit_log_end(ab); |
e54dc2431 [PATCH] audit sig... |
957 958 959 |
return rc; } |
43761473c audit: fix a doub... |
960 961 |
static void audit_log_execve_info(struct audit_context *context, struct audit_buffer **ab) |
bdf4c48af audit: rework exe... |
962 |
{ |
43761473c audit: fix a doub... |
963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 |
long len_max; long len_rem; long len_full; long len_buf; long len_abuf; long len_tmp; bool require_data; bool encode; unsigned int iter; unsigned int arg; char *buf_head; char *buf; const char __user *p = (const char __user *)current->mm->arg_start; /* NOTE: this buffer needs to be large enough to hold all the non-arg * data we put in the audit record for this argument (see the * code below) ... at this point in time 96 is plenty */ char abuf[96]; /* NOTE: we set MAX_EXECVE_AUDIT_LEN to a rather arbitrary limit, the * current value of 7500 is not as important as the fact that it * is less than 8k, a setting of 7500 gives us plenty of wiggle * room if we go over a little bit in the logging below */ WARN_ON_ONCE(MAX_EXECVE_AUDIT_LEN > 7500); len_max = MAX_EXECVE_AUDIT_LEN; /* scratch buffer to hold the userspace args */ buf_head = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL); if (!buf_head) { audit_panic("out of memory for argv string"); return; |
de6bbd1d3 [AUDIT] break lar... |
994 |
} |
43761473c audit: fix a doub... |
995 |
buf = buf_head; |
040b3a2df audit: fix two bu... |
996 |
|
43761473c audit: fix a doub... |
997 |
audit_log_format(*ab, "argc=%d", context->execve.argc); |
040b3a2df audit: fix two bu... |
998 |
|
43761473c audit: fix a doub... |
999 1000 1001 1002 1003 1004 1005 |
len_rem = len_max; len_buf = 0; len_full = 0; require_data = true; encode = false; iter = 0; arg = 0; |
de6bbd1d3 [AUDIT] break lar... |
1006 |
do { |
43761473c audit: fix a doub... |
1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 |
/* NOTE: we don't ever want to trust this value for anything * serious, but the audit record format insists we * provide an argument length for really long arguments, * e.g. > MAX_EXECVE_AUDIT_LEN, so we have no choice but * to use strncpy_from_user() to obtain this value for * recording in the log, although we don't use it * anywhere here to avoid a double-fetch problem */ if (len_full == 0) len_full = strnlen_user(p, MAX_ARG_STRLEN) - 1; /* read more data from userspace */ if (require_data) { /* can we make more room in the buffer? */ if (buf != buf_head) { memmove(buf_head, buf, len_buf); buf = buf_head; } /* fetch as much as we can of the argument */ len_tmp = strncpy_from_user(&buf_head[len_buf], p, len_max - len_buf); if (len_tmp == -EFAULT) { /* unable to copy from userspace */ send_sig(SIGKILL, current, 0); goto out; } else if (len_tmp == (len_max - len_buf)) { /* buffer is not large enough */ require_data = true; /* NOTE: if we are going to span multiple * buffers force the encoding so we stand * a chance at a sane len_full value and * consistent record encoding */ encode = true; len_full = len_full * 2; p += len_tmp; } else { require_data = false; if (!encode) encode = audit_string_contains_control( buf, len_tmp); /* try to use a trusted value for len_full */ if (len_full < len_max) len_full = (encode ? len_tmp * 2 : len_tmp); p += len_tmp + 1; } len_buf += len_tmp; buf_head[len_buf] = '\0'; |
bdf4c48af audit: rework exe... |
1055 |
|
43761473c audit: fix a doub... |
1056 1057 |
/* length of the buffer in the audit record? */ len_abuf = (encode ? len_buf * 2 : len_buf + 2); |
bdf4c48af audit: rework exe... |
1058 |
} |
de6bbd1d3 [AUDIT] break lar... |
1059 |
|
43761473c audit: fix a doub... |
1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 |
/* write as much as we can to the audit log */ if (len_buf > 0) { /* NOTE: some magic numbers here - basically if we * can't fit a reasonable amount of data into the * existing audit buffer, flush it and start with * a new buffer */ if ((sizeof(abuf) + 8) > len_rem) { len_rem = len_max; audit_log_end(*ab); *ab = audit_log_start(context, GFP_KERNEL, AUDIT_EXECVE); if (!*ab) goto out; } |
bdf4c48af audit: rework exe... |
1074 |
|
43761473c audit: fix a doub... |
1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 |
/* create the non-arg portion of the arg record */ len_tmp = 0; if (require_data || (iter > 0) || ((len_abuf + sizeof(abuf)) > len_rem)) { if (iter == 0) { len_tmp += snprintf(&abuf[len_tmp], sizeof(abuf) - len_tmp, " a%d_len=%lu", arg, len_full); } len_tmp += snprintf(&abuf[len_tmp], sizeof(abuf) - len_tmp, " a%d[%d]=", arg, iter++); } else len_tmp += snprintf(&abuf[len_tmp], sizeof(abuf) - len_tmp, " a%d=", arg); WARN_ON(len_tmp >= sizeof(abuf)); abuf[sizeof(abuf) - 1] = '\0'; /* log the arg in the audit record */ audit_log_format(*ab, "%s", abuf); len_rem -= len_tmp; len_tmp = len_buf; if (encode) { if (len_abuf > len_rem) len_tmp = len_rem / 2; /* encoding */ audit_log_n_hex(*ab, buf, len_tmp); len_rem -= len_tmp * 2; len_abuf -= len_tmp * 2; } else { if (len_abuf > len_rem) len_tmp = len_rem - 2; /* quotes */ audit_log_n_string(*ab, buf, len_tmp); len_rem -= len_tmp + 2; /* don't subtract the "2" because we still need * to add quotes to the remaining string */ len_abuf -= len_tmp; } len_buf -= len_tmp; buf += len_tmp; } |
bdf4c48af audit: rework exe... |
1117 |
|
43761473c audit: fix a doub... |
1118 1119 1120 1121 1122 1123 1124 1125 1126 |
/* ready to move to the next argument? */ if ((len_buf == 0) && !require_data) { arg++; iter = 0; len_full = 0; require_data = true; encode = false; } } while (arg < context->execve.argc); |
de6bbd1d3 [AUDIT] break lar... |
1127 |
|
43761473c audit: fix a doub... |
1128 |
/* NOTE: the caller handles the final audit_log_end() call */ |
de6bbd1d3 [AUDIT] break lar... |
1129 |
|
43761473c audit: fix a doub... |
1130 1131 |
out: kfree(buf_head); |
bdf4c48af audit: rework exe... |
1132 |
} |
a33e67510 sanitize audit_ip... |
1133 |
static void show_special(struct audit_context *context, int *call_panic) |
f3298dc4f sanitize audit_so... |
1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 |
{ struct audit_buffer *ab; int i; ab = audit_log_start(context, GFP_KERNEL, context->type); if (!ab) return; switch (context->type) { case AUDIT_SOCKETCALL: { int nargs = context->socketcall.nargs; audit_log_format(ab, "nargs=%d", nargs); for (i = 0; i < nargs; i++) audit_log_format(ab, " a%d=%lx", i, context->socketcall.args[i]); break; } |
a33e67510 sanitize audit_ip... |
1150 1151 |
case AUDIT_IPC: { u32 osid = context->ipc.osid; |
2570ebbd1 switch kern_ipc_p... |
1152 |
audit_log_format(ab, "ouid=%u ogid=%u mode=%#ho", |
cca080d9b userns: Convert a... |
1153 1154 1155 |
from_kuid(&init_user_ns, context->ipc.uid), from_kgid(&init_user_ns, context->ipc.gid), context->ipc.mode); |
a33e67510 sanitize audit_ip... |
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 |
if (osid) { char *ctx = NULL; u32 len; if (security_secid_to_secctx(osid, &ctx, &len)) { audit_log_format(ab, " osid=%u", osid); *call_panic = 1; } else { audit_log_format(ab, " obj=%s", ctx); security_release_secctx(ctx, len); } } |
e816f370c sanitize audit_ip... |
1167 1168 1169 1170 |
if (context->ipc.has_perm) { audit_log_end(ab); ab = audit_log_start(context, GFP_KERNEL, AUDIT_IPC_SET_PERM); |
0644ec0cc audit: catch poss... |
1171 1172 |
if (unlikely(!ab)) return; |
e816f370c sanitize audit_ip... |
1173 |
audit_log_format(ab, |
2570ebbd1 switch kern_ipc_p... |
1174 |
"qbytes=%lx ouid=%u ogid=%u mode=%#ho", |
e816f370c sanitize audit_ip... |
1175 1176 1177 1178 |
context->ipc.qbytes, context->ipc.perm_uid, context->ipc.perm_gid, context->ipc.perm_mode); |
e816f370c sanitize audit_ip... |
1179 |
} |
a33e67510 sanitize audit_ip... |
1180 |
break; } |
564f6993f sanitize audit_mq... |
1181 1182 |
case AUDIT_MQ_OPEN: { audit_log_format(ab, |
df0a42837 switch mq_open() ... |
1183 |
"oflag=0x%x mode=%#ho mq_flags=0x%lx mq_maxmsg=%ld " |
564f6993f sanitize audit_mq... |
1184 1185 1186 1187 1188 1189 1190 |
"mq_msgsize=%ld mq_curmsgs=%ld", context->mq_open.oflag, context->mq_open.mode, context->mq_open.attr.mq_flags, context->mq_open.attr.mq_maxmsg, context->mq_open.attr.mq_msgsize, context->mq_open.attr.mq_curmsgs); break; } |
c32c8af43 sanitize AUDIT_MQ... |
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 |
case AUDIT_MQ_SENDRECV: { audit_log_format(ab, "mqdes=%d msg_len=%zd msg_prio=%u " "abs_timeout_sec=%ld abs_timeout_nsec=%ld", context->mq_sendrecv.mqdes, context->mq_sendrecv.msg_len, context->mq_sendrecv.msg_prio, context->mq_sendrecv.abs_timeout.tv_sec, context->mq_sendrecv.abs_timeout.tv_nsec); break; } |
20114f71b sanitize audit_mq... |
1201 1202 1203 1204 1205 |
case AUDIT_MQ_NOTIFY: { audit_log_format(ab, "mqdes=%d sigev_signo=%d", context->mq_notify.mqdes, context->mq_notify.sigev_signo); break; } |
7392906ea sanitize audit_mq... |
1206 1207 1208 1209 1210 1211 1212 1213 1214 |
case AUDIT_MQ_GETSETATTR: { struct mq_attr *attr = &context->mq_getsetattr.mqstat; audit_log_format(ab, "mqdes=%d mq_flags=0x%lx mq_maxmsg=%ld mq_msgsize=%ld " "mq_curmsgs=%ld ", context->mq_getsetattr.mqdes, attr->mq_flags, attr->mq_maxmsg, attr->mq_msgsize, attr->mq_curmsgs); break; } |
57f71a0af sanitize audit_lo... |
1215 1216 1217 1218 1219 1220 |
case AUDIT_CAPSET: { audit_log_format(ab, "pid=%d", context->capset.pid); audit_log_cap(ab, "cap_pi", &context->capset.cap.inheritable); audit_log_cap(ab, "cap_pp", &context->capset.cap.permitted); audit_log_cap(ab, "cap_pe", &context->capset.cap.effective); break; } |
120a795da audit mmap |
1221 1222 1223 1224 |
case AUDIT_MMAP: { audit_log_format(ab, "fd=%d flags=0x%x", context->mmap.fd, context->mmap.flags); break; } |
d9cfea91e audit: move audit... |
1225 1226 1227 |
case AUDIT_EXECVE: { audit_log_execve_info(context, &ab); break; } |
f3298dc4f sanitize audit_so... |
1228 1229 1230 |
} audit_log_end(ab); } |
3f1c82502 audit: Audit proc... |
1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 |
static inline int audit_proctitle_rtrim(char *proctitle, int len) { char *end = proctitle + len - 1; while (end > proctitle && !isprint(*end)) end--; /* catch the case where proctitle is only 1 non-print character */ len = end - proctitle + 1; len -= isprint(proctitle[len-1]) == 0; return len; } static void audit_log_proctitle(struct task_struct *tsk, struct audit_context *context) { int res; char *buf; char *msg = "(null)"; int len = strlen(msg); struct audit_buffer *ab; ab = audit_log_start(context, GFP_KERNEL, AUDIT_PROCTITLE); if (!ab) return; /* audit_panic or being filtered */ audit_log_format(ab, "proctitle="); /* Not cached */ if (!context->proctitle.value) { buf = kmalloc(MAX_PROCTITLE_AUDIT_LEN, GFP_KERNEL); if (!buf) goto out; /* Historically called this from procfs naming */ res = get_cmdline(tsk, buf, MAX_PROCTITLE_AUDIT_LEN); if (res == 0) { kfree(buf); goto out; } res = audit_proctitle_rtrim(buf, res); if (res == 0) { kfree(buf); goto out; } context->proctitle.value = buf; context->proctitle.len = res; } msg = context->proctitle.value; len = context->proctitle.len; out: audit_log_n_untrustedstring(ab, msg, len); audit_log_end(ab); } |
e495149b1 [PATCH] drop gfp_... |
1283 |
static void audit_log_exit(struct audit_context *context, struct task_struct *tsk) |
1da177e4c Linux-2.6.12-rc2 |
1284 |
{ |
9c7aa6aa7 [PATCH] change ls... |
1285 |
int i, call_panic = 0; |
1da177e4c Linux-2.6.12-rc2 |
1286 |
struct audit_buffer *ab; |
7551ced33 AUDIT: Defer free... |
1287 |
struct audit_aux_data *aux; |
5195d8e21 audit: dynamicall... |
1288 |
struct audit_names *n; |
1da177e4c Linux-2.6.12-rc2 |
1289 |
|
e495149b1 [PATCH] drop gfp_... |
1290 |
/* tsk == current */ |
3f2792ffb [PATCH] take fill... |
1291 |
context->personality = tsk->personality; |
e495149b1 [PATCH] drop gfp_... |
1292 1293 |
ab = audit_log_start(context, GFP_KERNEL, AUDIT_SYSCALL); |
1da177e4c Linux-2.6.12-rc2 |
1294 1295 |
if (!ab) return; /* audit_panic has been called */ |
bccf6ae08 AUDIT: Unify auid... |
1296 1297 |
audit_log_format(ab, "arch=%x syscall=%d", context->arch, context->major); |
1da177e4c Linux-2.6.12-rc2 |
1298 1299 1300 |
if (context->personality != PER_LINUX) audit_log_format(ab, " per=%lx", context->personality); if (context->return_valid) |
9f8dbe9c9 whitespace fixes:... |
1301 |
audit_log_format(ab, " success=%s exit=%ld", |
2fd6f58ba [AUDIT] Don't all... |
1302 1303 |
(context->return_valid==AUDITSC_SUCCESS)?"yes":"no", context->return_code); |
eb84a20e9 [PATCH] audit/acc... |
1304 |
|
1da177e4c Linux-2.6.12-rc2 |
1305 |
audit_log_format(ab, |
e23eb920b audit: export aud... |
1306 1307 1308 1309 1310 1311 |
" a0=%lx a1=%lx a2=%lx a3=%lx items=%d", context->argv[0], context->argv[1], context->argv[2], context->argv[3], context->name_count); |
eb84a20e9 [PATCH] audit/acc... |
1312 |
|
e495149b1 [PATCH] drop gfp_... |
1313 |
audit_log_task_info(ab, tsk); |
9d9609851 Audit: clean up a... |
1314 |
audit_log_key(ab, context->filterkey); |
1da177e4c Linux-2.6.12-rc2 |
1315 |
audit_log_end(ab); |
1da177e4c Linux-2.6.12-rc2 |
1316 |
|
7551ced33 AUDIT: Defer free... |
1317 |
for (aux = context->aux; aux; aux = aux->next) { |
c04049939 AUDIT: Add messag... |
1318 |
|
e495149b1 [PATCH] drop gfp_... |
1319 |
ab = audit_log_start(context, GFP_KERNEL, aux->type); |
1da177e4c Linux-2.6.12-rc2 |
1320 1321 |
if (!ab) continue; /* audit_panic has been called */ |
1da177e4c Linux-2.6.12-rc2 |
1322 |
switch (aux->type) { |
20ca73bc7 [PATCH] Audit of ... |
1323 |
|
3fc689e96 Any time fcaps or... |
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 |
case AUDIT_BPRM_FCAPS: { struct audit_aux_data_bprm_fcaps *axs = (void *)aux; audit_log_format(ab, "fver=%x", axs->fcap_ver); audit_log_cap(ab, "fp", &axs->fcap.permitted); audit_log_cap(ab, "fi", &axs->fcap.inheritable); audit_log_format(ab, " fe=%d", axs->fcap.fE); audit_log_cap(ab, "old_pp", &axs->old_pcap.permitted); audit_log_cap(ab, "old_pi", &axs->old_pcap.inheritable); audit_log_cap(ab, "old_pe", &axs->old_pcap.effective); audit_log_cap(ab, "new_pp", &axs->new_pcap.permitted); audit_log_cap(ab, "new_pi", &axs->new_pcap.inheritable); audit_log_cap(ab, "new_pe", &axs->new_pcap.effective); break; } |
1da177e4c Linux-2.6.12-rc2 |
1337 1338 |
} audit_log_end(ab); |
1da177e4c Linux-2.6.12-rc2 |
1339 |
} |
f3298dc4f sanitize audit_so... |
1340 |
if (context->type) |
a33e67510 sanitize audit_ip... |
1341 |
show_special(context, &call_panic); |
f3298dc4f sanitize audit_so... |
1342 |
|
157cf649a sanitize audit_fd... |
1343 1344 1345 1346 1347 1348 1349 1350 |
if (context->fds[0] >= 0) { ab = audit_log_start(context, GFP_KERNEL, AUDIT_FD_PAIR); if (ab) { audit_log_format(ab, "fd0=%d fd1=%d", context->fds[0], context->fds[1]); audit_log_end(ab); } } |
4f6b434fe don't reallocate ... |
1351 1352 1353 1354 1355 1356 1357 1358 1359 |
if (context->sockaddr_len) { ab = audit_log_start(context, GFP_KERNEL, AUDIT_SOCKADDR); if (ab) { audit_log_format(ab, "saddr="); audit_log_n_hex(ab, (void *)context->sockaddr, context->sockaddr_len); audit_log_end(ab); } } |
e54dc2431 [PATCH] audit sig... |
1360 1361 |
for (aux = context->aux_pids; aux; aux = aux->next) { struct audit_aux_data_pids *axs = (void *)aux; |
e54dc2431 [PATCH] audit sig... |
1362 1363 1364 |
for (i = 0; i < axs->pid_count; i++) if (audit_log_pid_context(context, axs->target_pid[i], |
c2a7780ef [AUDIT] collect u... |
1365 1366 |
axs->target_auid[i], axs->target_uid[i], |
4746ec5b0 [AUDIT] add sessi... |
1367 |
axs->target_sessionid[i], |
c2a7780ef [AUDIT] collect u... |
1368 1369 |
axs->target_sid[i], axs->target_comm[i])) |
e54dc2431 [PATCH] audit sig... |
1370 |
call_panic = 1; |
a5cb013da [PATCH] auditing ... |
1371 |
} |
e54dc2431 [PATCH] audit sig... |
1372 1373 |
if (context->target_pid && audit_log_pid_context(context, context->target_pid, |
c2a7780ef [AUDIT] collect u... |
1374 |
context->target_auid, context->target_uid, |
4746ec5b0 [AUDIT] add sessi... |
1375 |
context->target_sessionid, |
c2a7780ef [AUDIT] collect u... |
1376 |
context->target_sid, context->target_comm)) |
e54dc2431 [PATCH] audit sig... |
1377 |
call_panic = 1; |
44707fdf5 d_path: Use struc... |
1378 |
if (context->pwd.dentry && context->pwd.mnt) { |
e495149b1 [PATCH] drop gfp_... |
1379 |
ab = audit_log_start(context, GFP_KERNEL, AUDIT_CWD); |
8f37d47c9 AUDIT: Record wor... |
1380 |
if (ab) { |
0b7a0fdb2 audit: fix whites... |
1381 |
audit_log_d_path(ab, "cwd=", &context->pwd); |
8f37d47c9 AUDIT: Record wor... |
1382 1383 1384 |
audit_log_end(ab); } } |
73241ccca [PATCH] Collect m... |
1385 |
|
5195d8e21 audit: dynamicall... |
1386 |
i = 0; |
79f6530cb audit: fix mq_ope... |
1387 1388 1389 |
list_for_each_entry(n, &context->names_list, list) { if (n->hidden) continue; |
b24a30a73 audit: fix event ... |
1390 |
audit_log_name(context, n, NULL, i++, &call_panic); |
79f6530cb audit: fix mq_ope... |
1391 |
} |
c0641f28d [AUDIT] Add End o... |
1392 |
|
3f1c82502 audit: Audit proc... |
1393 |
audit_log_proctitle(tsk, context); |
c0641f28d [AUDIT] Add End o... |
1394 1395 1396 1397 |
/* Send end of event record to help user space know we are finished */ ab = audit_log_start(context, GFP_KERNEL, AUDIT_EOE); if (ab) audit_log_end(ab); |
9c7aa6aa7 [PATCH] change ls... |
1398 1399 |
if (call_panic) audit_panic("error converting sid to string"); |
1da177e4c Linux-2.6.12-rc2 |
1400 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
1401 1402 1403 1404 |
/** * audit_free - free a per-task audit context * @tsk: task whose audit context block to free * |
fa84cb935 [PATCH] move call... |
1405 |
* Called from copy_process and do_exit |
b0dd25a82 [PATCH] AUDIT: ke... |
1406 |
*/ |
a4ff8dba7 audit: inline aud... |
1407 |
void __audit_free(struct task_struct *tsk) |
1da177e4c Linux-2.6.12-rc2 |
1408 1409 |
{ struct audit_context *context; |
4a3eb726d audit: rename the... |
1410 |
context = audit_take_context(tsk, 0, 0); |
56179a6ec audit: drop some ... |
1411 |
if (!context) |
1da177e4c Linux-2.6.12-rc2 |
1412 1413 1414 |
return; /* Check for system calls that do not go through the exit |
9f8dbe9c9 whitespace fixes:... |
1415 1416 |
* function (e.g., exit_group), then free context block. * We use GFP_ATOMIC here because we might be doing this |
f55619642 AUDIT: Avoid sche... |
1417 |
* in the context of the idle thread */ |
e495149b1 [PATCH] drop gfp_... |
1418 |
/* that can happen only if we are called from do_exit() */ |
0590b9335 fixing audit rule... |
1419 |
if (context->in_syscall && context->current_state == AUDIT_RECORD_CONTEXT) |
e495149b1 [PATCH] drop gfp_... |
1420 |
audit_log_exit(context, tsk); |
916d75761 Fix rule eviction... |
1421 1422 |
if (!list_empty(&context->killed_trees)) audit_kill_trees(&context->killed_trees); |
1da177e4c Linux-2.6.12-rc2 |
1423 1424 1425 |
audit_free_context(context); } |
b0dd25a82 [PATCH] AUDIT: ke... |
1426 1427 |
/** * audit_syscall_entry - fill in an audit record at syscall entry |
b0dd25a82 [PATCH] AUDIT: ke... |
1428 1429 1430 1431 1432 1433 1434 |
* @major: major syscall type (function) * @a1: additional syscall register 1 * @a2: additional syscall register 2 * @a3: additional syscall register 3 * @a4: additional syscall register 4 * * Fill in audit context at syscall entry. This only happens if the |
1da177e4c Linux-2.6.12-rc2 |
1435 1436 1437 1438 1439 |
* audit context was created when the task was created and the state or * filters demand the audit context be built. If the state from the * per-task filter or from the per-syscall filter is AUDIT_RECORD_CONTEXT, * then the record will be written at syscall exit time (otherwise, it * will only be written if another part of the kernel requests that it |
b0dd25a82 [PATCH] AUDIT: ke... |
1440 1441 |
* be written). */ |
b4f0d3755 audit: x86: drop ... |
1442 1443 |
void __audit_syscall_entry(int major, unsigned long a1, unsigned long a2, unsigned long a3, unsigned long a4) |
1da177e4c Linux-2.6.12-rc2 |
1444 |
{ |
5411be59d [PATCH] drop task... |
1445 |
struct task_struct *tsk = current; |
1da177e4c Linux-2.6.12-rc2 |
1446 1447 |
struct audit_context *context = tsk->audit_context; enum audit_state state; |
56179a6ec audit: drop some ... |
1448 |
if (!context) |
86a1c34a9 x86_64 syscall au... |
1449 |
return; |
1da177e4c Linux-2.6.12-rc2 |
1450 |
|
1da177e4c Linux-2.6.12-rc2 |
1451 1452 1453 1454 |
BUG_ON(context->in_syscall || context->name_count); if (!audit_enabled) return; |
4a99854c5 audit: __audit_sy... |
1455 |
context->arch = syscall_get_arch(); |
1da177e4c Linux-2.6.12-rc2 |
1456 1457 1458 1459 1460 1461 1462 |
context->major = major; context->argv[0] = a1; context->argv[1] = a2; context->argv[2] = a3; context->argv[3] = a4; state = context->state; |
d51374adf [PATCH] mark cont... |
1463 |
context->dummy = !audit_n_rules; |
0590b9335 fixing audit rule... |
1464 1465 |
if (!context->dummy && state == AUDIT_BUILD_CONTEXT) { context->prio = 0; |
0f45aa18e AUDIT: Allow filt... |
1466 |
state = audit_filter_syscall(tsk, context, &audit_filter_list[AUDIT_FILTER_ENTRY]); |
0590b9335 fixing audit rule... |
1467 |
} |
56179a6ec audit: drop some ... |
1468 |
if (state == AUDIT_DISABLED) |
1da177e4c Linux-2.6.12-rc2 |
1469 |
return; |
ce625a801 AUDIT: Reduce con... |
1470 |
context->serial = 0; |
1da177e4c Linux-2.6.12-rc2 |
1471 1472 |
context->ctime = CURRENT_TIME; context->in_syscall = 1; |
0590b9335 fixing audit rule... |
1473 |
context->current_state = state; |
419c58f11 [PATCH] PPID filt... |
1474 |
context->ppid = 0; |
1da177e4c Linux-2.6.12-rc2 |
1475 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
1476 1477 |
/** * audit_syscall_exit - deallocate audit context after a system call |
42ae610c1 kernel-doc: fix n... |
1478 1479 |
* @success: success value of the syscall * @return_code: return value of the syscall |
b0dd25a82 [PATCH] AUDIT: ke... |
1480 1481 |
* * Tear down after system call. If the audit context has been marked as |
1da177e4c Linux-2.6.12-rc2 |
1482 |
* auditable (either because of the AUDIT_RECORD_CONTEXT state from |
42ae610c1 kernel-doc: fix n... |
1483 |
* filtering, or because some other part of the kernel wrote an audit |
1da177e4c Linux-2.6.12-rc2 |
1484 |
* message), then write out the syscall information. In call cases, |
b0dd25a82 [PATCH] AUDIT: ke... |
1485 1486 |
* free the names stored from getname(). */ |
d7e7528bc Audit: push audit... |
1487 |
void __audit_syscall_exit(int success, long return_code) |
1da177e4c Linux-2.6.12-rc2 |
1488 |
{ |
5411be59d [PATCH] drop task... |
1489 |
struct task_struct *tsk = current; |
1da177e4c Linux-2.6.12-rc2 |
1490 |
struct audit_context *context; |
d7e7528bc Audit: push audit... |
1491 1492 1493 1494 |
if (success) success = AUDITSC_SUCCESS; else success = AUDITSC_FAILURE; |
1da177e4c Linux-2.6.12-rc2 |
1495 |
|
4a3eb726d audit: rename the... |
1496 |
context = audit_take_context(tsk, success, return_code); |
56179a6ec audit: drop some ... |
1497 |
if (!context) |
97e94c453 [PATCH] no need t... |
1498 |
return; |
1da177e4c Linux-2.6.12-rc2 |
1499 |
|
0590b9335 fixing audit rule... |
1500 |
if (context->in_syscall && context->current_state == AUDIT_RECORD_CONTEXT) |
e495149b1 [PATCH] drop gfp_... |
1501 |
audit_log_exit(context, tsk); |
1da177e4c Linux-2.6.12-rc2 |
1502 1503 |
context->in_syscall = 0; |
0590b9335 fixing audit rule... |
1504 |
context->prio = context->state == AUDIT_RECORD_CONTEXT ? ~0ULL : 0; |
2fd6f58ba [AUDIT] Don't all... |
1505 |
|
916d75761 Fix rule eviction... |
1506 1507 |
if (!list_empty(&context->killed_trees)) audit_kill_trees(&context->killed_trees); |
c62d773a3 audit: no nested ... |
1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 |
audit_free_names(context); unroll_tree_refs(context, NULL, 0); audit_free_aux(context); context->aux = NULL; context->aux_pids = NULL; context->target_pid = 0; context->target_sid = 0; context->sockaddr_len = 0; context->type = 0; context->fds[0] = -1; if (context->state != AUDIT_RECORD_CONTEXT) { kfree(context->filterkey); context->filterkey = NULL; |
1da177e4c Linux-2.6.12-rc2 |
1521 |
} |
c62d773a3 audit: no nested ... |
1522 |
tsk->audit_context = context; |
1da177e4c Linux-2.6.12-rc2 |
1523 |
} |
74c3cbe33 [PATCH] audit: wa... |
1524 1525 1526 1527 1528 1529 1530 |
static inline void handle_one(const struct inode *inode) { #ifdef CONFIG_AUDIT_TREE struct audit_context *context; struct audit_tree_refs *p; struct audit_chunk *chunk; int count; |
e61ce8673 fsnotify: rename ... |
1531 |
if (likely(hlist_empty(&inode->i_fsnotify_marks))) |
74c3cbe33 [PATCH] audit: wa... |
1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 |
return; context = current->audit_context; p = context->trees; count = context->tree_count; rcu_read_lock(); chunk = audit_tree_lookup(inode); rcu_read_unlock(); if (!chunk) return; if (likely(put_tree_ref(context, chunk))) return; if (unlikely(!grow_tree_refs(context))) { |
f952d10ff audit: Use more c... |
1544 1545 |
pr_warn("out of memory, audit has lost a tree reference "); |
74c3cbe33 [PATCH] audit: wa... |
1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 |
audit_set_auditable(context); audit_put_chunk(chunk); unroll_tree_refs(context, p, count); return; } put_tree_ref(context, chunk); #endif } static void handle_path(const struct dentry *dentry) { #ifdef CONFIG_AUDIT_TREE struct audit_context *context; struct audit_tree_refs *p; const struct dentry *d, *parent; struct audit_chunk *drop; unsigned long seq; int count; context = current->audit_context; p = context->trees; count = context->tree_count; retry: drop = NULL; d = dentry; rcu_read_lock(); seq = read_seqbegin(&rename_lock); for(;;) { |
3b362157b VFS: audit: d_bac... |
1574 |
struct inode *inode = d_backing_inode(d); |
e61ce8673 fsnotify: rename ... |
1575 |
if (inode && unlikely(!hlist_empty(&inode->i_fsnotify_marks))) { |
74c3cbe33 [PATCH] audit: wa... |
1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 |
struct audit_chunk *chunk; chunk = audit_tree_lookup(inode); if (chunk) { if (unlikely(!put_tree_ref(context, chunk))) { drop = chunk; break; } } } parent = d->d_parent; if (parent == d) break; d = parent; } if (unlikely(read_seqretry(&rename_lock, seq) || drop)) { /* in this order */ rcu_read_unlock(); if (!drop) { /* just a race with rename */ unroll_tree_refs(context, p, count); goto retry; } audit_put_chunk(drop); if (grow_tree_refs(context)) { /* OK, got more space */ unroll_tree_refs(context, p, count); goto retry; } /* too bad */ |
f952d10ff audit: Use more c... |
1604 1605 |
pr_warn("out of memory, audit has lost a tree reference "); |
74c3cbe33 [PATCH] audit: wa... |
1606 1607 1608 1609 1610 1611 1612 |
unroll_tree_refs(context, p, count); audit_set_auditable(context); return; } rcu_read_unlock(); #endif } |
78e2e802a audit: add a new ... |
1613 1614 |
static struct audit_names *audit_alloc_name(struct audit_context *context, unsigned char type) |
5195d8e21 audit: dynamicall... |
1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 |
{ struct audit_names *aname; if (context->name_count < AUDIT_NAMES) { aname = &context->preallocated_names[context->name_count]; memset(aname, 0, sizeof(*aname)); } else { aname = kzalloc(sizeof(*aname), GFP_NOFS); if (!aname) return NULL; aname->should_free = true; } |
84cb777e6 audit: use macros... |
1627 |
aname->ino = AUDIT_INO_UNSET; |
78e2e802a audit: add a new ... |
1628 |
aname->type = type; |
5195d8e21 audit: dynamicall... |
1629 1630 1631 |
list_add_tail(&aname->list, &context->names_list); context->name_count++; |
5195d8e21 audit: dynamicall... |
1632 1633 |
return aname; } |
b0dd25a82 [PATCH] AUDIT: ke... |
1634 |
/** |
7ac86265d audit: allow audi... |
1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 |
* audit_reusename - fill out filename with info from existing entry * @uptr: userland ptr to pathname * * Search the audit_names list for the current audit context. If there is an * existing entry with a matching "uptr" then return the filename * associated with that audit_name. If not, return NULL. */ struct filename * __audit_reusename(const __user char *uptr) { struct audit_context *context = current->audit_context; struct audit_names *n; list_for_each_entry(n, &context->names_list, list) { if (!n->name) continue; |
55422d0bd audit: replace ge... |
1651 1652 |
if (n->name->uptr == uptr) { n->name->refcnt++; |
7ac86265d audit: allow audi... |
1653 |
return n->name; |
55422d0bd audit: replace ge... |
1654 |
} |
7ac86265d audit: allow audi... |
1655 1656 1657 1658 1659 |
} return NULL; } /** |
b0dd25a82 [PATCH] AUDIT: ke... |
1660 1661 1662 1663 1664 1665 |
* audit_getname - add a name to the list * @name: name to add * * Add a name to the list of audit names for this context. * Called from fs/namei.c:getname(). */ |
91a27b2a7 vfs: define struc... |
1666 |
void __audit_getname(struct filename *name) |
1da177e4c Linux-2.6.12-rc2 |
1667 1668 |
{ struct audit_context *context = current->audit_context; |
5195d8e21 audit: dynamicall... |
1669 |
struct audit_names *n; |
1da177e4c Linux-2.6.12-rc2 |
1670 |
|
55422d0bd audit: replace ge... |
1671 |
if (!context->in_syscall) |
1da177e4c Linux-2.6.12-rc2 |
1672 |
return; |
91a27b2a7 vfs: define struc... |
1673 |
|
78e2e802a audit: add a new ... |
1674 |
n = audit_alloc_name(context, AUDIT_TYPE_UNKNOWN); |
5195d8e21 audit: dynamicall... |
1675 1676 1677 1678 1679 |
if (!n) return; n->name = name; n->name_len = AUDIT_NAME_FULL; |
adb5c2473 audit: make audit... |
1680 |
name->aname = n; |
55422d0bd audit: replace ge... |
1681 |
name->refcnt++; |
5195d8e21 audit: dynamicall... |
1682 |
|
f7ad3c6be vfs: add helpers ... |
1683 1684 |
if (!context->pwd.dentry) get_fs_pwd(current->fs, &context->pwd); |
1da177e4c Linux-2.6.12-rc2 |
1685 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
1686 |
/** |
bfcec7087 audit: set the na... |
1687 |
* __audit_inode - store the inode and device from a lookup |
b0dd25a82 [PATCH] AUDIT: ke... |
1688 |
* @name: name being audited |
481968f44 auditsc: fix kern... |
1689 |
* @dentry: dentry being audited |
79f6530cb audit: fix mq_ope... |
1690 |
* @flags: attributes for this particular entry |
b0dd25a82 [PATCH] AUDIT: ke... |
1691 |
*/ |
adb5c2473 audit: make audit... |
1692 |
void __audit_inode(struct filename *name, const struct dentry *dentry, |
79f6530cb audit: fix mq_ope... |
1693 |
unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
1694 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1695 |
struct audit_context *context = current->audit_context; |
d6335d77a security: Make in... |
1696 |
struct inode *inode = d_backing_inode(dentry); |
5195d8e21 audit: dynamicall... |
1697 |
struct audit_names *n; |
79f6530cb audit: fix mq_ope... |
1698 |
bool parent = flags & AUDIT_INODE_PARENT; |
1da177e4c Linux-2.6.12-rc2 |
1699 1700 1701 |
if (!context->in_syscall) return; |
5195d8e21 audit: dynamicall... |
1702 |
|
9cec9d68a audit: no need to... |
1703 1704 |
if (!name) goto out_alloc; |
adb5c2473 audit: make audit... |
1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 |
/* * If we have a pointer to an audit_names entry already, then we can * just use it directly if the type is correct. */ n = name->aname; if (n) { if (parent) { if (n->type == AUDIT_TYPE_PARENT || n->type == AUDIT_TYPE_UNKNOWN) goto out; } else { if (n->type != AUDIT_TYPE_PARENT) goto out; } } |
5195d8e21 audit: dynamicall... |
1720 |
list_for_each_entry_reverse(n, &context->names_list, list) { |
57c59f583 audit: fix filena... |
1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 |
if (n->ino) { /* valid inode number, use that for the comparison */ if (n->ino != inode->i_ino || n->dev != inode->i_sb->s_dev) continue; } else if (n->name) { /* inode number has not been set, check the name */ if (strcmp(n->name->name, name->name)) continue; } else /* no inode and no name (?!) ... this is odd ... */ |
bfcec7087 audit: set the na... |
1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 |
continue; /* match the correct record type */ if (parent) { if (n->type == AUDIT_TYPE_PARENT || n->type == AUDIT_TYPE_UNKNOWN) goto out; } else { if (n->type != AUDIT_TYPE_PARENT) goto out; } |
1da177e4c Linux-2.6.12-rc2 |
1743 |
} |
5195d8e21 audit: dynamicall... |
1744 |
|
9cec9d68a audit: no need to... |
1745 |
out_alloc: |
4a9284360 audit: correctly ... |
1746 1747 |
/* unable to find an entry with both a matching name and type */ n = audit_alloc_name(context, AUDIT_TYPE_UNKNOWN); |
5195d8e21 audit: dynamicall... |
1748 1749 |
if (!n) return; |
fcf22d826 audit: create pri... |
1750 |
if (name) { |
fd3522fdc audit: enable fil... |
1751 |
n->name = name; |
55422d0bd audit: replace ge... |
1752 |
name->refcnt++; |
fcf22d826 audit: create pri... |
1753 |
} |
4a9284360 audit: correctly ... |
1754 |
|
5195d8e21 audit: dynamicall... |
1755 |
out: |
bfcec7087 audit: set the na... |
1756 |
if (parent) { |
91a27b2a7 vfs: define struc... |
1757 |
n->name_len = n->name ? parent_len(n->name->name) : AUDIT_NAME_FULL; |
bfcec7087 audit: set the na... |
1758 |
n->type = AUDIT_TYPE_PARENT; |
79f6530cb audit: fix mq_ope... |
1759 1760 |
if (flags & AUDIT_INODE_HIDDEN) n->hidden = true; |
bfcec7087 audit: set the na... |
1761 1762 1763 1764 |
} else { n->name_len = AUDIT_NAME_FULL; n->type = AUDIT_TYPE_NORMAL; } |
74c3cbe33 [PATCH] audit: wa... |
1765 |
handle_path(dentry); |
5195d8e21 audit: dynamicall... |
1766 |
audit_copy_inode(n, dentry, inode); |
73241ccca [PATCH] Collect m... |
1767 |
} |
9f45f5bf3 new helper: audit... |
1768 1769 1770 1771 |
void __audit_file(const struct file *file) { __audit_inode(NULL, file->f_path.dentry, 0); } |
73241ccca [PATCH] Collect m... |
1772 |
/** |
c43a25abb audit: reverse ar... |
1773 |
* __audit_inode_child - collect inode info for created/removed objects |
73d3ec5ab [PATCH] fix misse... |
1774 |
* @parent: inode of dentry parent |
c43a25abb audit: reverse ar... |
1775 |
* @dentry: dentry being audited |
4fa6b5ecb audit: overhaul _... |
1776 |
* @type: AUDIT_TYPE_* value that we're looking for |
73241ccca [PATCH] Collect m... |
1777 1778 1779 1780 1781 1782 1783 1784 1785 |
* * For syscalls that create or remove filesystem objects, audit_inode * can only collect information for the filesystem object's parent. * This call updates the audit context with the child's information. * Syscalls that create a new filesystem object must be hooked after * the object is created. Syscalls that remove a filesystem object * must be hooked prior, in order to capture the target inode during * unsuccessful attempts. */ |
d6335d77a security: Make in... |
1786 |
void __audit_inode_child(struct inode *parent, |
4fa6b5ecb audit: overhaul _... |
1787 1788 |
const struct dentry *dentry, const unsigned char type) |
73241ccca [PATCH] Collect m... |
1789 |
{ |
73241ccca [PATCH] Collect m... |
1790 |
struct audit_context *context = current->audit_context; |
d6335d77a security: Make in... |
1791 |
struct inode *inode = d_backing_inode(dentry); |
cccc6bba3 Lose the first ar... |
1792 |
const char *dname = dentry->d_name.name; |
4fa6b5ecb audit: overhaul _... |
1793 |
struct audit_names *n, *found_parent = NULL, *found_child = NULL; |
73241ccca [PATCH] Collect m... |
1794 1795 1796 |
if (!context->in_syscall) return; |
74c3cbe33 [PATCH] audit: wa... |
1797 1798 |
if (inode) handle_one(inode); |
73241ccca [PATCH] Collect m... |
1799 |
|
4fa6b5ecb audit: overhaul _... |
1800 |
/* look for a parent entry first */ |
5195d8e21 audit: dynamicall... |
1801 |
list_for_each_entry(n, &context->names_list, list) { |
57c59f583 audit: fix filena... |
1802 1803 1804 |
if (!n->name || (n->type != AUDIT_TYPE_PARENT && n->type != AUDIT_TYPE_UNKNOWN)) |
5712e88f2 [PATCH] match aud... |
1805 |
continue; |
57c59f583 audit: fix filena... |
1806 1807 1808 1809 1810 |
if (n->ino == parent->i_ino && n->dev == parent->i_sb->s_dev && !audit_compare_dname_path(dname, n->name->name, n->name_len)) { if (n->type == AUDIT_TYPE_UNKNOWN) n->type = AUDIT_TYPE_PARENT; |
4fa6b5ecb audit: overhaul _... |
1811 1812 |
found_parent = n; break; |
f368c07d7 [PATCH] audit: pa... |
1813 |
} |
5712e88f2 [PATCH] match aud... |
1814 |
} |
73241ccca [PATCH] Collect m... |
1815 |
|
4fa6b5ecb audit: overhaul _... |
1816 |
/* is there a matching child entry? */ |
5195d8e21 audit: dynamicall... |
1817 |
list_for_each_entry(n, &context->names_list, list) { |
4fa6b5ecb audit: overhaul _... |
1818 |
/* can only match entries that have a name */ |
57c59f583 audit: fix filena... |
1819 1820 |
if (!n->name || (n->type != type && n->type != AUDIT_TYPE_UNKNOWN)) |
5712e88f2 [PATCH] match aud... |
1821 |
continue; |
91a27b2a7 vfs: define struc... |
1822 1823 |
if (!strcmp(dname, n->name->name) || !audit_compare_dname_path(dname, n->name->name, |
4fa6b5ecb audit: overhaul _... |
1824 1825 |
found_parent ? found_parent->name_len : |
e3d6b07b8 audit: optimize a... |
1826 |
AUDIT_NAME_FULL)) { |
57c59f583 audit: fix filena... |
1827 1828 |
if (n->type == AUDIT_TYPE_UNKNOWN) n->type = type; |
4fa6b5ecb audit: overhaul _... |
1829 1830 |
found_child = n; break; |
5712e88f2 [PATCH] match aud... |
1831 |
} |
ac9910ce0 [PATCH] name_coun... |
1832 |
} |
5712e88f2 [PATCH] match aud... |
1833 |
|
5712e88f2 [PATCH] match aud... |
1834 |
if (!found_parent) { |
4fa6b5ecb audit: overhaul _... |
1835 1836 |
/* create a new, "anonymous" parent record */ n = audit_alloc_name(context, AUDIT_TYPE_PARENT); |
5195d8e21 audit: dynamicall... |
1837 |
if (!n) |
ac9910ce0 [PATCH] name_coun... |
1838 |
return; |
5195d8e21 audit: dynamicall... |
1839 |
audit_copy_inode(n, NULL, parent); |
73d3ec5ab [PATCH] fix misse... |
1840 |
} |
5712e88f2 [PATCH] match aud... |
1841 1842 |
if (!found_child) { |
4fa6b5ecb audit: overhaul _... |
1843 1844 |
found_child = audit_alloc_name(context, type); if (!found_child) |
5712e88f2 [PATCH] match aud... |
1845 |
return; |
5712e88f2 [PATCH] match aud... |
1846 1847 1848 1849 1850 |
/* Re-use the name belonging to the slot for a matching parent * directory. All names for this context are relinquished in * audit_free_names() */ if (found_parent) { |
4fa6b5ecb audit: overhaul _... |
1851 1852 |
found_child->name = found_parent->name; found_child->name_len = AUDIT_NAME_FULL; |
55422d0bd audit: replace ge... |
1853 |
found_child->name->refcnt++; |
5712e88f2 [PATCH] match aud... |
1854 |
} |
5712e88f2 [PATCH] match aud... |
1855 |
} |
57c59f583 audit: fix filena... |
1856 |
|
4fa6b5ecb audit: overhaul _... |
1857 1858 1859 |
if (inode) audit_copy_inode(found_child, dentry, inode); else |
84cb777e6 audit: use macros... |
1860 |
found_child->ino = AUDIT_INO_UNSET; |
3e2efce06 [PATCH] fix fault... |
1861 |
} |
50e437d52 SUNRPC: Convert r... |
1862 |
EXPORT_SYMBOL_GPL(__audit_inode_child); |
3e2efce06 [PATCH] fix fault... |
1863 1864 |
/** |
b0dd25a82 [PATCH] AUDIT: ke... |
1865 1866 1867 1868 1869 1870 1871 |
* auditsc_get_stamp - get local copies of audit_context values * @ctx: audit_context for the task * @t: timespec to store time recorded in the audit_context * @serial: serial value that is recorded in the audit_context * * Also sets the context as auditable. */ |
48887e63d [PATCH] fix broke... |
1872 |
int auditsc_get_stamp(struct audit_context *ctx, |
bfb4496e7 AUDIT: Assign ser... |
1873 |
struct timespec *t, unsigned int *serial) |
1da177e4c Linux-2.6.12-rc2 |
1874 |
{ |
48887e63d [PATCH] fix broke... |
1875 1876 |
if (!ctx->in_syscall) return 0; |
ce625a801 AUDIT: Reduce con... |
1877 1878 |
if (!ctx->serial) ctx->serial = audit_serial(); |
bfb4496e7 AUDIT: Assign ser... |
1879 1880 1881 |
t->tv_sec = ctx->ctime.tv_sec; t->tv_nsec = ctx->ctime.tv_nsec; *serial = ctx->serial; |
0590b9335 fixing audit rule... |
1882 1883 1884 1885 |
if (!ctx->prio) { ctx->prio = 1; ctx->current_state = AUDIT_RECORD_CONTEXT; } |
48887e63d [PATCH] fix broke... |
1886 |
return 1; |
1da177e4c Linux-2.6.12-rc2 |
1887 |
} |
4746ec5b0 [AUDIT] add sessi... |
1888 1889 |
/* global counter which is incremented every time something logs in */ static atomic_t session_id = ATOMIC_INIT(0); |
da0a61049 audit: loginuid f... |
1890 1891 |
static int audit_set_loginuid_perm(kuid_t loginuid) { |
da0a61049 audit: loginuid f... |
1892 1893 1894 |
/* if we are unset, we don't need privs */ if (!audit_loginuid_set(current)) return 0; |
21b85c31d audit: audit feat... |
1895 1896 1897 |
/* if AUDIT_FEATURE_LOGINUID_IMMUTABLE means never ever allow a change*/ if (is_audit_feature_set(AUDIT_FEATURE_LOGINUID_IMMUTABLE)) return -EPERM; |
83fa6bbe4 audit: remove CON... |
1898 1899 1900 |
/* it is set, you need permission */ if (!capable(CAP_AUDIT_CONTROL)) return -EPERM; |
d040e5af3 audit: audit feat... |
1901 1902 1903 |
/* reject if this is not an unset and we don't allow that */ if (is_audit_feature_set(AUDIT_FEATURE_ONLY_UNSET_LOGINUID) && uid_valid(loginuid)) return -EPERM; |
83fa6bbe4 audit: remove CON... |
1904 |
return 0; |
da0a61049 audit: loginuid f... |
1905 1906 1907 1908 1909 1910 1911 |
} static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid, unsigned int oldsessionid, unsigned int sessionid, int rc) { struct audit_buffer *ab; |
5ee9a75c9 audit: fix dangli... |
1912 |
uid_t uid, oldloginuid, loginuid; |
db0a6fb5d audit: add tty fi... |
1913 |
struct tty_struct *tty; |
da0a61049 audit: loginuid f... |
1914 |
|
c2412d91c audit: don't gene... |
1915 1916 |
if (!audit_enabled) return; |
76a658c20 audit: move calcs... |
1917 1918 1919 |
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_LOGIN); if (!ab) return; |
da0a61049 audit: loginuid f... |
1920 |
uid = from_kuid(&init_user_ns, task_uid(current)); |
5ee9a75c9 audit: fix dangli... |
1921 1922 |
oldloginuid = from_kuid(&init_user_ns, koldloginuid); loginuid = from_kuid(&init_user_ns, kloginuid), |
db0a6fb5d audit: add tty fi... |
1923 |
tty = audit_get_tty(current); |
da0a61049 audit: loginuid f... |
1924 |
|
fa2bea2f5 audit: consistent... |
1925 |
audit_log_format(ab, "pid=%d uid=%u", task_tgid_nr(current), uid); |
ddfad8aff audit: include su... |
1926 |
audit_log_task_context(ab); |
db0a6fb5d audit: add tty fi... |
1927 1928 1929 1930 |
audit_log_format(ab, " old-auid=%u auid=%u tty=%s old-ses=%u ses=%u res=%d", oldloginuid, loginuid, tty ? tty_name(tty) : "(none)", oldsessionid, sessionid, !rc); audit_put_tty(tty); |
da0a61049 audit: loginuid f... |
1931 1932 |
audit_log_end(ab); } |
b0dd25a82 [PATCH] AUDIT: ke... |
1933 |
/** |
0a300be6d audit: remove tas... |
1934 |
* audit_set_loginuid - set current task's audit_context loginuid |
b0dd25a82 [PATCH] AUDIT: ke... |
1935 1936 1937 1938 1939 1940 |
* @loginuid: loginuid value * * Returns 0. * * Called (set) from fs/proc/base.c::proc_loginuid_write(). */ |
e1760bd5f userns: Convert t... |
1941 |
int audit_set_loginuid(kuid_t loginuid) |
1da177e4c Linux-2.6.12-rc2 |
1942 |
{ |
0a300be6d audit: remove tas... |
1943 |
struct task_struct *task = current; |
9175c9d2a audit: fix type o... |
1944 1945 |
unsigned int oldsessionid, sessionid = (unsigned int)-1; kuid_t oldloginuid; |
da0a61049 audit: loginuid f... |
1946 |
int rc; |
41757106b [PATCH] make set_... |
1947 |
|
da0a61049 audit: loginuid f... |
1948 1949 1950 1951 1952 1953 |
oldloginuid = audit_get_loginuid(current); oldsessionid = audit_get_sessionid(current); rc = audit_set_loginuid_perm(loginuid); if (rc) goto out; |
633b45454 audit: only allow... |
1954 |
|
81407c84a audit: allow unse... |
1955 1956 |
/* are we setting or clearing? */ if (uid_valid(loginuid)) |
4440e8548 audit: convert al... |
1957 |
sessionid = (unsigned int)atomic_inc_return(&session_id); |
bfef93a5d [PATCH] get rid o... |
1958 |
|
4746ec5b0 [AUDIT] add sessi... |
1959 |
task->sessionid = sessionid; |
bfef93a5d [PATCH] get rid o... |
1960 |
task->loginuid = loginuid; |
da0a61049 audit: loginuid f... |
1961 1962 1963 |
out: audit_log_set_loginuid(oldloginuid, loginuid, oldsessionid, sessionid, rc); return rc; |
1da177e4c Linux-2.6.12-rc2 |
1964 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
1965 |
/** |
20ca73bc7 [PATCH] Audit of ... |
1966 1967 1968 |
* __audit_mq_open - record audit data for a POSIX MQ open * @oflag: open flag * @mode: mode bits |
6b9625599 auditsc: fix kern... |
1969 |
* @attr: queue attributes |
20ca73bc7 [PATCH] Audit of ... |
1970 |
* |
20ca73bc7 [PATCH] Audit of ... |
1971 |
*/ |
df0a42837 switch mq_open() ... |
1972 |
void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr) |
20ca73bc7 [PATCH] Audit of ... |
1973 |
{ |
20ca73bc7 [PATCH] Audit of ... |
1974 |
struct audit_context *context = current->audit_context; |
564f6993f sanitize audit_mq... |
1975 1976 1977 1978 |
if (attr) memcpy(&context->mq_open.attr, attr, sizeof(struct mq_attr)); else memset(&context->mq_open.attr, 0, sizeof(struct mq_attr)); |
20ca73bc7 [PATCH] Audit of ... |
1979 |
|
564f6993f sanitize audit_mq... |
1980 1981 |
context->mq_open.oflag = oflag; context->mq_open.mode = mode; |
20ca73bc7 [PATCH] Audit of ... |
1982 |
|
564f6993f sanitize audit_mq... |
1983 |
context->type = AUDIT_MQ_OPEN; |
20ca73bc7 [PATCH] Audit of ... |
1984 1985 1986 |
} /** |
c32c8af43 sanitize AUDIT_MQ... |
1987 |
* __audit_mq_sendrecv - record audit data for a POSIX MQ timed send/receive |
20ca73bc7 [PATCH] Audit of ... |
1988 1989 1990 |
* @mqdes: MQ descriptor * @msg_len: Message length * @msg_prio: Message priority |
c32c8af43 sanitize AUDIT_MQ... |
1991 |
* @abs_timeout: Message timeout in absolute time |
20ca73bc7 [PATCH] Audit of ... |
1992 |
* |
20ca73bc7 [PATCH] Audit of ... |
1993 |
*/ |
c32c8af43 sanitize AUDIT_MQ... |
1994 1995 |
void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout) |
20ca73bc7 [PATCH] Audit of ... |
1996 |
{ |
20ca73bc7 [PATCH] Audit of ... |
1997 |
struct audit_context *context = current->audit_context; |
c32c8af43 sanitize AUDIT_MQ... |
1998 |
struct timespec *p = &context->mq_sendrecv.abs_timeout; |
20ca73bc7 [PATCH] Audit of ... |
1999 |
|
c32c8af43 sanitize AUDIT_MQ... |
2000 2001 2002 2003 |
if (abs_timeout) memcpy(p, abs_timeout, sizeof(struct timespec)); else memset(p, 0, sizeof(struct timespec)); |
20ca73bc7 [PATCH] Audit of ... |
2004 |
|
c32c8af43 sanitize AUDIT_MQ... |
2005 2006 2007 |
context->mq_sendrecv.mqdes = mqdes; context->mq_sendrecv.msg_len = msg_len; context->mq_sendrecv.msg_prio = msg_prio; |
20ca73bc7 [PATCH] Audit of ... |
2008 |
|
c32c8af43 sanitize AUDIT_MQ... |
2009 |
context->type = AUDIT_MQ_SENDRECV; |
20ca73bc7 [PATCH] Audit of ... |
2010 2011 2012 2013 2014 |
} /** * __audit_mq_notify - record audit data for a POSIX MQ notify * @mqdes: MQ descriptor |
6b9625599 auditsc: fix kern... |
2015 |
* @notification: Notification event |
20ca73bc7 [PATCH] Audit of ... |
2016 |
* |
20ca73bc7 [PATCH] Audit of ... |
2017 |
*/ |
20114f71b sanitize audit_mq... |
2018 |
void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification) |
20ca73bc7 [PATCH] Audit of ... |
2019 |
{ |
20ca73bc7 [PATCH] Audit of ... |
2020 |
struct audit_context *context = current->audit_context; |
20114f71b sanitize audit_mq... |
2021 2022 2023 2024 |
if (notification) context->mq_notify.sigev_signo = notification->sigev_signo; else context->mq_notify.sigev_signo = 0; |
20ca73bc7 [PATCH] Audit of ... |
2025 |
|
20114f71b sanitize audit_mq... |
2026 2027 |
context->mq_notify.mqdes = mqdes; context->type = AUDIT_MQ_NOTIFY; |
20ca73bc7 [PATCH] Audit of ... |
2028 2029 2030 2031 2032 2033 2034 |
} /** * __audit_mq_getsetattr - record audit data for a POSIX MQ get/set attribute * @mqdes: MQ descriptor * @mqstat: MQ flags * |
20ca73bc7 [PATCH] Audit of ... |
2035 |
*/ |
7392906ea sanitize audit_mq... |
2036 |
void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat) |
20ca73bc7 [PATCH] Audit of ... |
2037 |
{ |
20ca73bc7 [PATCH] Audit of ... |
2038 |
struct audit_context *context = current->audit_context; |
7392906ea sanitize audit_mq... |
2039 2040 2041 |
context->mq_getsetattr.mqdes = mqdes; context->mq_getsetattr.mqstat = *mqstat; context->type = AUDIT_MQ_GETSETATTR; |
20ca73bc7 [PATCH] Audit of ... |
2042 2043 2044 |
} /** |
073115d6b [PATCH] Rework of... |
2045 2046 2047 |
* audit_ipc_obj - record audit data for ipc object * @ipcp: ipc permissions * |
073115d6b [PATCH] Rework of... |
2048 |
*/ |
a33e67510 sanitize audit_ip... |
2049 |
void __audit_ipc_obj(struct kern_ipc_perm *ipcp) |
073115d6b [PATCH] Rework of... |
2050 |
{ |
073115d6b [PATCH] Rework of... |
2051 |
struct audit_context *context = current->audit_context; |
a33e67510 sanitize audit_ip... |
2052 2053 2054 |
context->ipc.uid = ipcp->uid; context->ipc.gid = ipcp->gid; context->ipc.mode = ipcp->mode; |
e816f370c sanitize audit_ip... |
2055 |
context->ipc.has_perm = 0; |
a33e67510 sanitize audit_ip... |
2056 2057 |
security_ipc_getsecid(ipcp, &context->ipc.osid); context->type = AUDIT_IPC; |
073115d6b [PATCH] Rework of... |
2058 2059 2060 2061 |
} /** * audit_ipc_set_perm - record audit data for new ipc permissions |
b0dd25a82 [PATCH] AUDIT: ke... |
2062 2063 2064 2065 2066 |
* @qbytes: msgq bytes * @uid: msgq user id * @gid: msgq group id * @mode: msgq mode (permissions) * |
e816f370c sanitize audit_ip... |
2067 |
* Called only after audit_ipc_obj(). |
b0dd25a82 [PATCH] AUDIT: ke... |
2068 |
*/ |
2570ebbd1 switch kern_ipc_p... |
2069 |
void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode) |
1da177e4c Linux-2.6.12-rc2 |
2070 |
{ |
1da177e4c Linux-2.6.12-rc2 |
2071 |
struct audit_context *context = current->audit_context; |
e816f370c sanitize audit_ip... |
2072 2073 2074 2075 2076 |
context->ipc.qbytes = qbytes; context->ipc.perm_uid = uid; context->ipc.perm_gid = gid; context->ipc.perm_mode = mode; context->ipc.has_perm = 1; |
1da177e4c Linux-2.6.12-rc2 |
2077 |
} |
c2f0c7c35 The attached patc... |
2078 |
|
d9cfea91e audit: move audit... |
2079 |
void __audit_bprm(struct linux_binprm *bprm) |
473ae30bc [PATCH] execve ar... |
2080 |
{ |
473ae30bc [PATCH] execve ar... |
2081 |
struct audit_context *context = current->audit_context; |
473ae30bc [PATCH] execve ar... |
2082 |
|
d9cfea91e audit: move audit... |
2083 2084 |
context->type = AUDIT_EXECVE; context->execve.argc = bprm->argc; |
473ae30bc [PATCH] execve ar... |
2085 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
2086 2087 |
/** * audit_socketcall - record audit data for sys_socketcall |
2950fa9d3 kernel: audit: be... |
2088 |
* @nargs: number of args, which should not be more than AUDITSC_ARGS. |
b0dd25a82 [PATCH] AUDIT: ke... |
2089 2090 |
* @args: args array * |
b0dd25a82 [PATCH] AUDIT: ke... |
2091 |
*/ |
2950fa9d3 kernel: audit: be... |
2092 |
int __audit_socketcall(int nargs, unsigned long *args) |
3ec3b2fba AUDIT: Capture sy... |
2093 |
{ |
3ec3b2fba AUDIT: Capture sy... |
2094 |
struct audit_context *context = current->audit_context; |
2950fa9d3 kernel: audit: be... |
2095 2096 |
if (nargs <= 0 || nargs > AUDITSC_ARGS || !args) return -EINVAL; |
f3298dc4f sanitize audit_so... |
2097 2098 2099 |
context->type = AUDIT_SOCKETCALL; context->socketcall.nargs = nargs; memcpy(context->socketcall.args, args, nargs * sizeof(unsigned long)); |
2950fa9d3 kernel: audit: be... |
2100 |
return 0; |
3ec3b2fba AUDIT: Capture sy... |
2101 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
2102 |
/** |
db3495099 [PATCH] AUDIT_FD_... |
2103 2104 2105 2106 |
* __audit_fd_pair - record audit data for pipe and socketpair * @fd1: the first file descriptor * @fd2: the second file descriptor * |
db3495099 [PATCH] AUDIT_FD_... |
2107 |
*/ |
157cf649a sanitize audit_fd... |
2108 |
void __audit_fd_pair(int fd1, int fd2) |
db3495099 [PATCH] AUDIT_FD_... |
2109 2110 |
{ struct audit_context *context = current->audit_context; |
157cf649a sanitize audit_fd... |
2111 2112 |
context->fds[0] = fd1; context->fds[1] = fd2; |
db3495099 [PATCH] AUDIT_FD_... |
2113 2114 2115 |
} /** |
b0dd25a82 [PATCH] AUDIT: ke... |
2116 2117 2118 2119 2120 2121 |
* audit_sockaddr - record audit data for sys_bind, sys_connect, sys_sendto * @len: data length in user space * @a: data address in kernel space * * Returns 0 for success or NULL context or < 0 on error. */ |
07c494178 audit: inline che... |
2122 |
int __audit_sockaddr(int len, void *a) |
3ec3b2fba AUDIT: Capture sy... |
2123 |
{ |
3ec3b2fba AUDIT: Capture sy... |
2124 |
struct audit_context *context = current->audit_context; |
4f6b434fe don't reallocate ... |
2125 2126 2127 2128 2129 2130 |
if (!context->sockaddr) { void *p = kmalloc(sizeof(struct sockaddr_storage), GFP_KERNEL); if (!p) return -ENOMEM; context->sockaddr = p; } |
3ec3b2fba AUDIT: Capture sy... |
2131 |
|
4f6b434fe don't reallocate ... |
2132 2133 |
context->sockaddr_len = len; memcpy(context->sockaddr, a, len); |
3ec3b2fba AUDIT: Capture sy... |
2134 2135 |
return 0; } |
a5cb013da [PATCH] auditing ... |
2136 2137 2138 |
void __audit_ptrace(struct task_struct *t) { struct audit_context *context = current->audit_context; |
fa2bea2f5 audit: consistent... |
2139 |
context->target_pid = task_tgid_nr(t); |
c2a7780ef [AUDIT] collect u... |
2140 |
context->target_auid = audit_get_loginuid(t); |
c69e8d9c0 CRED: Use RCU to ... |
2141 |
context->target_uid = task_uid(t); |
4746ec5b0 [AUDIT] add sessi... |
2142 |
context->target_sessionid = audit_get_sessionid(t); |
2a862b32f Audit: use new LS... |
2143 |
security_task_getsecid(t, &context->target_sid); |
c2a7780ef [AUDIT] collect u... |
2144 |
memcpy(context->target_comm, t->comm, TASK_COMM_LEN); |
a5cb013da [PATCH] auditing ... |
2145 |
} |
b0dd25a82 [PATCH] AUDIT: ke... |
2146 |
/** |
b0dd25a82 [PATCH] AUDIT: ke... |
2147 2148 2149 2150 2151 2152 2153 |
* audit_signal_info - record signal info for shutting down audit subsystem * @sig: signal value * @t: task being signaled * * If the audit subsystem is being terminated, record the task (pid) * and uid that is doing that. */ |
e54dc2431 [PATCH] audit sig... |
2154 |
int __audit_signal_info(int sig, struct task_struct *t) |
c2f0c7c35 The attached patc... |
2155 |
{ |
e54dc2431 [PATCH] audit sig... |
2156 2157 2158 |
struct audit_aux_data_pids *axp; struct task_struct *tsk = current; struct audit_context *ctx = tsk->audit_context; |
cca080d9b userns: Convert a... |
2159 |
kuid_t uid = current_uid(), t_uid = task_uid(t); |
e1396065e [PATCH] collect s... |
2160 |
|
175fc4842 fix oops in __aud... |
2161 |
if (audit_pid && t->tgid == audit_pid) { |
ee1d31566 [PATCH] Audit: Co... |
2162 |
if (sig == SIGTERM || sig == SIGHUP || sig == SIGUSR1 || sig == SIGUSR2) { |
fa2bea2f5 audit: consistent... |
2163 |
audit_sig_pid = task_tgid_nr(tsk); |
e1760bd5f userns: Convert t... |
2164 |
if (uid_valid(tsk->loginuid)) |
bfef93a5d [PATCH] get rid o... |
2165 |
audit_sig_uid = tsk->loginuid; |
175fc4842 fix oops in __aud... |
2166 |
else |
c69e8d9c0 CRED: Use RCU to ... |
2167 |
audit_sig_uid = uid; |
2a862b32f Audit: use new LS... |
2168 |
security_task_getsecid(tsk, &audit_sig_sid); |
175fc4842 fix oops in __aud... |
2169 2170 2171 |
} if (!audit_signals || audit_dummy_context()) return 0; |
c2f0c7c35 The attached patc... |
2172 |
} |
e54dc2431 [PATCH] audit sig... |
2173 |
|
e54dc2431 [PATCH] audit sig... |
2174 2175 2176 |
/* optimize the common case by putting first signal recipient directly * in audit_context */ if (!ctx->target_pid) { |
f1dc4867f audit: anchor all... |
2177 |
ctx->target_pid = task_tgid_nr(t); |
c2a7780ef [AUDIT] collect u... |
2178 |
ctx->target_auid = audit_get_loginuid(t); |
c69e8d9c0 CRED: Use RCU to ... |
2179 |
ctx->target_uid = t_uid; |
4746ec5b0 [AUDIT] add sessi... |
2180 |
ctx->target_sessionid = audit_get_sessionid(t); |
2a862b32f Audit: use new LS... |
2181 |
security_task_getsecid(t, &ctx->target_sid); |
c2a7780ef [AUDIT] collect u... |
2182 |
memcpy(ctx->target_comm, t->comm, TASK_COMM_LEN); |
e54dc2431 [PATCH] audit sig... |
2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 |
return 0; } axp = (void *)ctx->aux_pids; if (!axp || axp->pid_count == AUDIT_AUX_PIDS) { axp = kzalloc(sizeof(*axp), GFP_ATOMIC); if (!axp) return -ENOMEM; axp->d.type = AUDIT_OBJ_PID; axp->d.next = ctx->aux_pids; ctx->aux_pids = (void *)axp; } |
88ae704c2 kernel/auditsc.c:... |
2196 |
BUG_ON(axp->pid_count >= AUDIT_AUX_PIDS); |
e54dc2431 [PATCH] audit sig... |
2197 |
|
f1dc4867f audit: anchor all... |
2198 |
axp->target_pid[axp->pid_count] = task_tgid_nr(t); |
c2a7780ef [AUDIT] collect u... |
2199 |
axp->target_auid[axp->pid_count] = audit_get_loginuid(t); |
c69e8d9c0 CRED: Use RCU to ... |
2200 |
axp->target_uid[axp->pid_count] = t_uid; |
4746ec5b0 [AUDIT] add sessi... |
2201 |
axp->target_sessionid[axp->pid_count] = audit_get_sessionid(t); |
2a862b32f Audit: use new LS... |
2202 |
security_task_getsecid(t, &axp->target_sid[axp->pid_count]); |
c2a7780ef [AUDIT] collect u... |
2203 |
memcpy(axp->target_comm[axp->pid_count], t->comm, TASK_COMM_LEN); |
e54dc2431 [PATCH] audit sig... |
2204 2205 2206 |
axp->pid_count++; return 0; |
c2f0c7c35 The attached patc... |
2207 |
} |
0a4ff8c25 [PATCH] Abnormal ... |
2208 2209 |
/** |
3fc689e96 Any time fcaps or... |
2210 |
* __audit_log_bprm_fcaps - store information about a loading bprm and relevant fcaps |
d84f4f992 CRED: Inaugurate ... |
2211 2212 2213 |
* @bprm: pointer to the bprm being processed * @new: the proposed new credentials * @old: the old credentials |
3fc689e96 Any time fcaps or... |
2214 2215 2216 2217 |
* * Simply check if the proc already has the caps given by the file and if not * store the priv escalation info for later auditing at the end of the syscall * |
3fc689e96 Any time fcaps or... |
2218 2219 |
* -Eric */ |
d84f4f992 CRED: Inaugurate ... |
2220 2221 |
int __audit_log_bprm_fcaps(struct linux_binprm *bprm, const struct cred *new, const struct cred *old) |
3fc689e96 Any time fcaps or... |
2222 2223 2224 2225 |
{ struct audit_aux_data_bprm_fcaps *ax; struct audit_context *context = current->audit_context; struct cpu_vfs_cap_data vcaps; |
3fc689e96 Any time fcaps or... |
2226 2227 2228 |
ax = kmalloc(sizeof(*ax), GFP_KERNEL); if (!ax) |
d84f4f992 CRED: Inaugurate ... |
2229 |
return -ENOMEM; |
3fc689e96 Any time fcaps or... |
2230 2231 2232 2233 |
ax->d.type = AUDIT_BPRM_FCAPS; ax->d.next = context->aux; context->aux = (void *)ax; |
f4a4a8b12 file->f_path.dent... |
2234 |
get_vfs_caps_from_disk(bprm->file->f_path.dentry, &vcaps); |
3fc689e96 Any time fcaps or... |
2235 2236 2237 2238 2239 |
ax->fcap.permitted = vcaps.permitted; ax->fcap.inheritable = vcaps.inheritable; ax->fcap.fE = !!(vcaps.magic_etc & VFS_CAP_FLAGS_EFFECTIVE); ax->fcap_ver = (vcaps.magic_etc & VFS_CAP_REVISION_MASK) >> VFS_CAP_REVISION_SHIFT; |
d84f4f992 CRED: Inaugurate ... |
2240 2241 2242 |
ax->old_pcap.permitted = old->cap_permitted; ax->old_pcap.inheritable = old->cap_inheritable; ax->old_pcap.effective = old->cap_effective; |
3fc689e96 Any time fcaps or... |
2243 |
|
d84f4f992 CRED: Inaugurate ... |
2244 2245 2246 2247 |
ax->new_pcap.permitted = new->cap_permitted; ax->new_pcap.inheritable = new->cap_inheritable; ax->new_pcap.effective = new->cap_effective; return 0; |
3fc689e96 Any time fcaps or... |
2248 2249 2250 |
} /** |
e68b75a02 When the capset s... |
2251 |
* __audit_log_capset - store information about the arguments to the capset syscall |
d84f4f992 CRED: Inaugurate ... |
2252 2253 |
* @new: the new credentials * @old: the old (current) credentials |
e68b75a02 When the capset s... |
2254 |
* |
da3dae54e Documentation: Do... |
2255 |
* Record the arguments userspace sent to sys_capset for later printing by the |
e68b75a02 When the capset s... |
2256 2257 |
* audit system if applicable */ |
ca24a23eb audit: Simplify a... |
2258 |
void __audit_log_capset(const struct cred *new, const struct cred *old) |
e68b75a02 When the capset s... |
2259 |
{ |
e68b75a02 When the capset s... |
2260 |
struct audit_context *context = current->audit_context; |
fa2bea2f5 audit: consistent... |
2261 |
context->capset.pid = task_tgid_nr(current); |
57f71a0af sanitize audit_lo... |
2262 2263 2264 2265 |
context->capset.cap.effective = new->cap_effective; context->capset.cap.inheritable = new->cap_effective; context->capset.cap.permitted = new->cap_permitted; context->type = AUDIT_CAPSET; |
e68b75a02 When the capset s... |
2266 |
} |
120a795da audit mmap |
2267 2268 2269 2270 2271 2272 2273 |
void __audit_mmap_fd(int fd, int flags) { struct audit_context *context = current->audit_context; context->mmap.fd = fd; context->mmap.flags = flags; context->type = AUDIT_MMAP; } |
7b9205bd7 audit: create exp... |
2274 |
static void audit_log_task(struct audit_buffer *ab) |
85e7bac33 seccomp: audit ab... |
2275 |
{ |
cca080d9b userns: Convert a... |
2276 2277 |
kuid_t auid, uid; kgid_t gid; |
85e7bac33 seccomp: audit ab... |
2278 |
unsigned int sessionid; |
9eab339b1 audit: get comm u... |
2279 |
char comm[sizeof(current->comm)]; |
85e7bac33 seccomp: audit ab... |
2280 2281 2282 2283 2284 2285 |
auid = audit_get_loginuid(current); sessionid = audit_get_sessionid(current); current_uid_gid(&uid, &gid); audit_log_format(ab, "auid=%u uid=%u gid=%u ses=%u", |
cca080d9b userns: Convert a... |
2286 2287 2288 2289 |
from_kuid(&init_user_ns, auid), from_kuid(&init_user_ns, uid), from_kgid(&init_user_ns, gid), sessionid); |
85e7bac33 seccomp: audit ab... |
2290 |
audit_log_task_context(ab); |
fa2bea2f5 audit: consistent... |
2291 |
audit_log_format(ab, " pid=%d comm=", task_tgid_nr(current)); |
9eab339b1 audit: get comm u... |
2292 |
audit_log_untrustedstring(ab, get_task_comm(comm, current)); |
4766b199e audit: consolidat... |
2293 |
audit_log_d_path_exe(ab, current->mm); |
7b9205bd7 audit: create exp... |
2294 |
} |
e68b75a02 When the capset s... |
2295 |
/** |
0a4ff8c25 [PATCH] Abnormal ... |
2296 |
* audit_core_dumps - record information about processes that end abnormally |
6d9525b52 kerneldoc fix in ... |
2297 |
* @signr: signal value |
0a4ff8c25 [PATCH] Abnormal ... |
2298 2299 2300 2301 2302 2303 2304 |
* * If a process ends with a core dump, something fishy is going on and we * should record the event for investigation. */ void audit_core_dumps(long signr) { struct audit_buffer *ab; |
0a4ff8c25 [PATCH] Abnormal ... |
2305 2306 2307 2308 2309 2310 2311 2312 |
if (!audit_enabled) return; if (signr == SIGQUIT) /* don't care for those */ return; ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_ANOM_ABEND); |
0644ec0cc audit: catch poss... |
2313 2314 |
if (unlikely(!ab)) return; |
61c0ee879 audit: drop audit... |
2315 2316 |
audit_log_task(ab); audit_log_format(ab, " sig=%ld", signr); |
85e7bac33 seccomp: audit ab... |
2317 2318 |
audit_log_end(ab); } |
0a4ff8c25 [PATCH] Abnormal ... |
2319 |
|
3dc1c1b2d seccomp: remove d... |
2320 |
void __audit_seccomp(unsigned long syscall, long signr, int code) |
85e7bac33 seccomp: audit ab... |
2321 2322 |
{ struct audit_buffer *ab; |
7b9205bd7 audit: create exp... |
2323 2324 2325 2326 |
ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_SECCOMP); if (unlikely(!ab)) return; audit_log_task(ab); |
84db564aa audit: add arch f... |
2327 |
audit_log_format(ab, " sig=%ld arch=%x syscall=%ld compat=%d ip=0x%lx code=0x%x", |
efbc0fbf3 auditsc: for secc... |
2328 2329 |
signr, syscall_get_arch(), syscall, in_compat_syscall(), KSTK_EIP(current), code); |
0a4ff8c25 [PATCH] Abnormal ... |
2330 2331 |
audit_log_end(ab); } |
916d75761 Fix rule eviction... |
2332 2333 2334 2335 2336 2337 2338 2339 |
struct list_head *audit_killed_trees(void) { struct audit_context *ctx = current->audit_context; if (likely(!ctx || !ctx->in_syscall)) return NULL; return &ctx->killed_trees; } |