17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 581490fd2Sgww * Common Development and Distribution License (the "License"). 681490fd2Sgww * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 2281490fd2Sgww * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _BSM_AUDIT_KERNEL_H 277c478bd9Sstevel@tonic-gate #define _BSM_AUDIT_KERNEL_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate /* 327c478bd9Sstevel@tonic-gate * This file contains the basic auditing control structure definitions. 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #include <c2/audit_kevents.h> 367c478bd9Sstevel@tonic-gate #include <sys/priv_impl.h> 377c478bd9Sstevel@tonic-gate #include <sys/taskq.h> 387c478bd9Sstevel@tonic-gate #include <sys/zone.h> 397c478bd9Sstevel@tonic-gate 4081490fd2Sgww #include <sys/tsol/label.h> 4181490fd2Sgww 427c478bd9Sstevel@tonic-gate #ifdef __cplusplus 437c478bd9Sstevel@tonic-gate extern "C" { 447c478bd9Sstevel@tonic-gate #endif 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate /* 477c478bd9Sstevel@tonic-gate * This table contains the mapping from the system call ID to a corresponding 487c478bd9Sstevel@tonic-gate * audit event. 497c478bd9Sstevel@tonic-gate * 507c478bd9Sstevel@tonic-gate * au_init() is a function called at the beginning of the system call that 517c478bd9Sstevel@tonic-gate * performs any necessary setup/processing. It maps the call into the 527c478bd9Sstevel@tonic-gate * appropriate event, depending on the system call arguments. It is called 537c478bd9Sstevel@tonic-gate * by audit_start() from trap.c . 547c478bd9Sstevel@tonic-gate * 557c478bd9Sstevel@tonic-gate * au_event is the audit event associated with the system call. Most of the 567c478bd9Sstevel@tonic-gate * time it will map directly from the system call i.e. There is one system 577c478bd9Sstevel@tonic-gate * call associated with the event. In some cases, such as shmsys, or open, 587c478bd9Sstevel@tonic-gate * the au_start() function will map the system call to more than one event, 597c478bd9Sstevel@tonic-gate * depending on the system call arguments. 607c478bd9Sstevel@tonic-gate * 617c478bd9Sstevel@tonic-gate * au_start() is a function that provides per system call processing at the 627c478bd9Sstevel@tonic-gate * beginning of a system call. It is mainly concerned with preseving the 637c478bd9Sstevel@tonic-gate * audit record components that may be altered so that we can determine 647c478bd9Sstevel@tonic-gate * what the original paramater was before as well as after the system call. 657c478bd9Sstevel@tonic-gate * It is possible that au_start() may be taken away. It might be cleaner to 667c478bd9Sstevel@tonic-gate * define flags in au_ctrl to save a designated argument. For the moment we 677c478bd9Sstevel@tonic-gate * support both mechanisms, however the use of au_start() will be reviewed 687c478bd9Sstevel@tonic-gate * for 4.1.1 and CMW and ZEUS to see if such a general method is justified. 697c478bd9Sstevel@tonic-gate * 707c478bd9Sstevel@tonic-gate * au_finish() is a function that provides per system call processing at the 717c478bd9Sstevel@tonic-gate * completion of a system call. In certain circumstances, the type of audit 727c478bd9Sstevel@tonic-gate * event depends on intermidiate results during the processing of the system 737c478bd9Sstevel@tonic-gate * call. It is called in audit_finish() from trap.c . 747c478bd9Sstevel@tonic-gate * 757c478bd9Sstevel@tonic-gate * au_ctrl is a control vector that indicates what processing might have to 767c478bd9Sstevel@tonic-gate * be performed, even if there is no auditing for this system call. At 777c478bd9Sstevel@tonic-gate * present this is mostly for path processing for chmod, chroot. We need to 787c478bd9Sstevel@tonic-gate * process the path information in vfs_lookup, even when we are not auditing 797c478bd9Sstevel@tonic-gate * the system call in the case of chdir and chroot. 807c478bd9Sstevel@tonic-gate */ 817c478bd9Sstevel@tonic-gate /* 827c478bd9Sstevel@tonic-gate * Defines for au_ctrl 837c478bd9Sstevel@tonic-gate */ 847c478bd9Sstevel@tonic-gate #define S2E_SP PAD_SAVPATH /* save path for later use */ 857c478bd9Sstevel@tonic-gate #define S2E_MLD PAD_MLD /* only one lookup per system call */ 867c478bd9Sstevel@tonic-gate #define S2E_NPT PAD_NOPATH /* force no path in audit record */ 877c478bd9Sstevel@tonic-gate #define S2E_PUB PAD_PUBLIC_EV /* syscall is defined as a public op */ 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate /* 907c478bd9Sstevel@tonic-gate * At present, we are using the audit classes imbedded with in the kernel. Each 917c478bd9Sstevel@tonic-gate * event has a bit mask determining which classes the event is associated. 927c478bd9Sstevel@tonic-gate * The table audit_e2s maps the audit event ID to the audit state. 937c478bd9Sstevel@tonic-gate * 947c478bd9Sstevel@tonic-gate * Note that this may change radically. If we use a bit vector for the audit 957c478bd9Sstevel@tonic-gate * class, we can allow granularity at the event ID for each user. In this 967c478bd9Sstevel@tonic-gate * case, the vector would be determined at user level and passed to the kernel 977c478bd9Sstevel@tonic-gate * via the setaudit system call. 987c478bd9Sstevel@tonic-gate */ 997c478bd9Sstevel@tonic-gate 1007c478bd9Sstevel@tonic-gate /* 1017c478bd9Sstevel@tonic-gate * The audit_pad structure holds paths for the current root and directory 1027c478bd9Sstevel@tonic-gate * for the process, as well as for open files and directly manipulated objects. 1037c478bd9Sstevel@tonic-gate * The reference count minimizes data copies since the process's current 1047c478bd9Sstevel@tonic-gate * directory changes very seldom. 1057c478bd9Sstevel@tonic-gate */ 1067c478bd9Sstevel@tonic-gate struct audit_path { 1077c478bd9Sstevel@tonic-gate uint_t audp_ref; /* reference count */ 1087c478bd9Sstevel@tonic-gate uint_t audp_size; /* allocated size of this structure */ 1097c478bd9Sstevel@tonic-gate uint_t audp_cnt; /* number of path sections */ 1107c478bd9Sstevel@tonic-gate char *audp_sect[1]; /* path section pointers */ 1117c478bd9Sstevel@tonic-gate /* audp_sect[0] is the path name */ 1127c478bd9Sstevel@tonic-gate /* audp_sect[1+] are attribute paths */ 1137c478bd9Sstevel@tonic-gate }; 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate /* 1167c478bd9Sstevel@tonic-gate * The structure of the terminal ID within the kernel is different from the 1177c478bd9Sstevel@tonic-gate * terminal ID in user space. It is a combination of port and IP address. 1187c478bd9Sstevel@tonic-gate */ 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate struct au_termid { 1217c478bd9Sstevel@tonic-gate dev_t at_port; 1227c478bd9Sstevel@tonic-gate uint_t at_type; 1237c478bd9Sstevel@tonic-gate uint_t at_addr[4]; 1247c478bd9Sstevel@tonic-gate }; 1257c478bd9Sstevel@tonic-gate typedef struct au_termid au_termid_t; 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate /* 1287c478bd9Sstevel@tonic-gate * Attributes for deferring the queuing of an event. 1297c478bd9Sstevel@tonic-gate */ 1307c478bd9Sstevel@tonic-gate typedef struct au_defer_info { 1317c478bd9Sstevel@tonic-gate struct au_defer_info *audi_next; /* next on linked list */ 1327c478bd9Sstevel@tonic-gate void *audi_ad; /* audit record */ 1337c478bd9Sstevel@tonic-gate int audi_e_type; /* audit event id */ 1347c478bd9Sstevel@tonic-gate int audi_e_mod; /* audit event modifier */ 1357c478bd9Sstevel@tonic-gate int audi_flag; /* au_close*() flags */ 1367c478bd9Sstevel@tonic-gate timestruc_t audi_atime; /* audit event timestamp */ 1377c478bd9Sstevel@tonic-gate } au_defer_info_t; 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate /* 1407c478bd9Sstevel@tonic-gate * The structure p_audit_data hangs off of the process structure. It contains 1417c478bd9Sstevel@tonic-gate * all of the audit information necessary to manage the audit record generation 1427c478bd9Sstevel@tonic-gate * for each process. 1437c478bd9Sstevel@tonic-gate * 1447c478bd9Sstevel@tonic-gate * The pad_lock is constructed in the kmem_cache; the rest is combined 1457c478bd9Sstevel@tonic-gate * in a sub structure so it can be copied/zeroed in one statement. 1467c478bd9Sstevel@tonic-gate * 1477c478bd9Sstevel@tonic-gate * The members have been reordered for maximum packing on 64 bit Solaris. 1487c478bd9Sstevel@tonic-gate */ 1497c478bd9Sstevel@tonic-gate struct p_audit_data { 1507c478bd9Sstevel@tonic-gate kmutex_t pad_lock; /* lock pad data during changes */ 1517c478bd9Sstevel@tonic-gate struct _pad_data { 1527c478bd9Sstevel@tonic-gate struct audit_path *pad_root; /* process root path */ 1537c478bd9Sstevel@tonic-gate struct audit_path *pad_cwd; /* process cwd path */ 1547c478bd9Sstevel@tonic-gate au_mask_t pad_newmask; /* pending new mask */ 1557c478bd9Sstevel@tonic-gate int pad_flags; 1567c478bd9Sstevel@tonic-gate } pad_data; 1577c478bd9Sstevel@tonic-gate }; 1587c478bd9Sstevel@tonic-gate typedef struct p_audit_data p_audit_data_t; 1597c478bd9Sstevel@tonic-gate 1607c478bd9Sstevel@tonic-gate #define pad_root pad_data.pad_root 1617c478bd9Sstevel@tonic-gate #define pad_cwd pad_data.pad_cwd 1627c478bd9Sstevel@tonic-gate #define pad_newmask pad_data.pad_newmask 1637c478bd9Sstevel@tonic-gate #define pad_flags pad_data.pad_flags 1647c478bd9Sstevel@tonic-gate 1657c478bd9Sstevel@tonic-gate /* 1667c478bd9Sstevel@tonic-gate * Defines for pad_flags 1677c478bd9Sstevel@tonic-gate */ 1687c478bd9Sstevel@tonic-gate #define PAD_SETMASK 0x00000001 /* need to complete pending setmask */ 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate extern kmem_cache_t *au_pad_cache; 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate /* 1737c478bd9Sstevel@tonic-gate * Defines for pad_ctrl 1747c478bd9Sstevel@tonic-gate */ 1757c478bd9Sstevel@tonic-gate #define PAD_SAVPATH 0x00000001 /* save path for further processing */ 1767c478bd9Sstevel@tonic-gate #define PAD_MLD 0x00000002 /* system call involves MLD */ 1777c478bd9Sstevel@tonic-gate #define PAD_NOPATH 0x00000004 /* force no paths in audit record */ 1787c478bd9Sstevel@tonic-gate #define PAD_ABSPATH 0x00000008 /* path from lookup is absolute */ 1797c478bd9Sstevel@tonic-gate #define PAD_NOATTRB 0x00000010 /* do not automatically add attribute */ 1807c478bd9Sstevel@tonic-gate /* 0x20, 0x40 unused */ 1817c478bd9Sstevel@tonic-gate #define PAD_LFLOAT 0x00000080 /* Label float */ 1827c478bd9Sstevel@tonic-gate #define PAD_NOAUDIT 0x00000100 /* discard audit record */ 1837c478bd9Sstevel@tonic-gate #define PAD_PATHFND 0x00000200 /* found path, don't retry lookup */ 1847c478bd9Sstevel@tonic-gate #define PAD_SPRIV 0x00000400 /* succ priv use. extra audit_finish */ 1857c478bd9Sstevel@tonic-gate #define PAD_FPRIV 0x00000800 /* fail priv use. extra audit_finish */ 1867c478bd9Sstevel@tonic-gate #define PAD_SMAC 0x00001000 /* succ mac use. extra audit_finish */ 1877c478bd9Sstevel@tonic-gate #define PAD_FMAC 0x00002000 /* fail mac use. extra audit_finish */ 1887c478bd9Sstevel@tonic-gate #define PAD_AUDITME 0x00004000 /* audit me because of NFS operation */ 1897c478bd9Sstevel@tonic-gate #define PAD_ATPATH 0x00008000 /* attribute file lookup */ 1907c478bd9Sstevel@tonic-gate #define PAD_TRUE_CREATE 0x00010000 /* true create, file not found */ 1917c478bd9Sstevel@tonic-gate #define PAD_CORE 0x00020000 /* save attribute during core dump */ 1927c478bd9Sstevel@tonic-gate #define PAD_ERRJMP 0x00040000 /* abort record generation on error */ 1937c478bd9Sstevel@tonic-gate #define PAD_PUBLIC_EV 0x00080000 /* syscall is defined as a public op */ 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate /* 1967c478bd9Sstevel@tonic-gate * The structure t_audit_data hangs off of the thread structure. It contains 1977c478bd9Sstevel@tonic-gate * all of the audit information necessary to manage the audit record generation 1987c478bd9Sstevel@tonic-gate * for each thread. 1997c478bd9Sstevel@tonic-gate * 2007c478bd9Sstevel@tonic-gate */ 2017c478bd9Sstevel@tonic-gate 2027c478bd9Sstevel@tonic-gate struct t_audit_data { 2037c478bd9Sstevel@tonic-gate kthread_id_t tad_thread; /* DEBUG pointer to parent thread */ 2047c478bd9Sstevel@tonic-gate unsigned int tad_scid; /* system call ID for finish */ 2057c478bd9Sstevel@tonic-gate short tad_event; /* event for audit record */ 2067c478bd9Sstevel@tonic-gate short tad_evmod; /* event modifier for audit record */ 2077c478bd9Sstevel@tonic-gate int tad_ctrl; /* audit control/status flags */ 2087c478bd9Sstevel@tonic-gate void *tad_errjmp; /* error longjmp (audit record aborted) */ 2097c478bd9Sstevel@tonic-gate int tad_flag; /* to audit or not to audit */ 2107c478bd9Sstevel@tonic-gate struct audit_path *tad_aupath; /* captured at vfs_lookup */ 2117c478bd9Sstevel@tonic-gate struct audit_path *tad_atpath; /* openat prefix, path of fd */ 2127c478bd9Sstevel@tonic-gate struct vnode *tad_vn; /* saved inode from vfs_lookup */ 2137c478bd9Sstevel@tonic-gate caddr_t tad_ad; /* base of accumulated audit data */ 2147c478bd9Sstevel@tonic-gate au_defer_info_t *tad_defer_head; /* queue of records to defer */ 2157c478bd9Sstevel@tonic-gate /* until syscall end: */ 2167c478bd9Sstevel@tonic-gate au_defer_info_t *tad_defer_tail; /* tail of defer queue */ 2177c478bd9Sstevel@tonic-gate priv_set_t tad_sprivs; /* saved (success) used privs */ 2187c478bd9Sstevel@tonic-gate priv_set_t tad_fprivs; /* saved (failed) used privs */ 2197c478bd9Sstevel@tonic-gate }; 2207c478bd9Sstevel@tonic-gate typedef struct t_audit_data t_audit_data_t; 2217c478bd9Sstevel@tonic-gate 2227c478bd9Sstevel@tonic-gate /* 2237c478bd9Sstevel@tonic-gate * The f_audit_data structure hangs off of the file structure. It contains 2247c478bd9Sstevel@tonic-gate * three fields of data. The audit ID, the audit state, and a path name. 2257c478bd9Sstevel@tonic-gate */ 2267c478bd9Sstevel@tonic-gate 2277c478bd9Sstevel@tonic-gate struct f_audit_data { 2287c478bd9Sstevel@tonic-gate kthread_id_t fad_thread; /* DEBUG creating thread */ 2297c478bd9Sstevel@tonic-gate int fad_flags; /* audit control flags */ 2307c478bd9Sstevel@tonic-gate struct audit_path *fad_aupath; /* path from vfs_lookup */ 2317c478bd9Sstevel@tonic-gate }; 2327c478bd9Sstevel@tonic-gate typedef struct f_audit_data f_audit_data_t; 2337c478bd9Sstevel@tonic-gate 2347c478bd9Sstevel@tonic-gate #define FAD_READ 0x0001 /* read system call seen */ 2357c478bd9Sstevel@tonic-gate #define FAD_WRITE 0x0002 /* write system call seen */ 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate #define P2A(p) (p->p_audit_data) 2387c478bd9Sstevel@tonic-gate #define T2A(t) (t->t_audit_data) 2397c478bd9Sstevel@tonic-gate #define U2A(u) (curthread->t_audit_data) 2407c478bd9Sstevel@tonic-gate #define F2A(f) (f->f_audit_data) 2417c478bd9Sstevel@tonic-gate 2427c478bd9Sstevel@tonic-gate #define u_ad ((U2A(u))->tad_ad) 2437c478bd9Sstevel@tonic-gate #define ad_ctrl ((U2A(u))->tad_ctrl) 2447c478bd9Sstevel@tonic-gate #define ad_flag ((U2A(u))->tad_flag) 2457c478bd9Sstevel@tonic-gate 2467c478bd9Sstevel@tonic-gate #define AU_BUFSIZE 128 /* buffer size for the buffer pool */ 2477c478bd9Sstevel@tonic-gate 2487c478bd9Sstevel@tonic-gate struct au_buff { 2497c478bd9Sstevel@tonic-gate char buf[AU_BUFSIZE]; 2507c478bd9Sstevel@tonic-gate struct au_buff *next_buf; 2517c478bd9Sstevel@tonic-gate struct au_buff *next_rec; 2527c478bd9Sstevel@tonic-gate ushort_t rec_len; 2537c478bd9Sstevel@tonic-gate uchar_t len; 2547c478bd9Sstevel@tonic-gate uchar_t flag; 2557c478bd9Sstevel@tonic-gate }; 2567c478bd9Sstevel@tonic-gate 2577c478bd9Sstevel@tonic-gate typedef struct au_buff au_buff_t; 2587c478bd9Sstevel@tonic-gate 2597c478bd9Sstevel@tonic-gate /* 2607c478bd9Sstevel@tonic-gate * Kernel audit queue structure. 2617c478bd9Sstevel@tonic-gate */ 2627c478bd9Sstevel@tonic-gate struct audit_queue { 2637c478bd9Sstevel@tonic-gate au_buff_t *head; /* head of queue */ 2647c478bd9Sstevel@tonic-gate au_buff_t *tail; /* tail of queue */ 2657c478bd9Sstevel@tonic-gate ssize_t cnt; /* number elements on queue */ 2667c478bd9Sstevel@tonic-gate size_t hiwater; /* high water mark to block */ 2677c478bd9Sstevel@tonic-gate size_t lowater; /* low water mark to restart */ 2687c478bd9Sstevel@tonic-gate size_t bufsz; /* audit trail write buffer size */ 2697c478bd9Sstevel@tonic-gate size_t buflen; /* audit trail buffer length in use */ 2707c478bd9Sstevel@tonic-gate clock_t delay; /* delay before flushing queue */ 2717c478bd9Sstevel@tonic-gate int wt_block; /* writer is blocked (1) */ 2727c478bd9Sstevel@tonic-gate int rd_block; /* reader is blocked (1) */ 2737c478bd9Sstevel@tonic-gate kmutex_t lock; /* mutex lock for queue modification */ 2747c478bd9Sstevel@tonic-gate kcondvar_t write_cv; /* sleep structure for write block */ 2757c478bd9Sstevel@tonic-gate kcondvar_t read_cv; /* sleep structure for read block */ 2767c478bd9Sstevel@tonic-gate }; 2777c478bd9Sstevel@tonic-gate 2787c478bd9Sstevel@tonic-gate 2797c478bd9Sstevel@tonic-gate union rval; 2807c478bd9Sstevel@tonic-gate struct audit_s2e { 2817c478bd9Sstevel@tonic-gate au_event_t (*au_init)(au_event_t); 2827c478bd9Sstevel@tonic-gate /* convert au_event to real audit event ID */ 2837c478bd9Sstevel@tonic-gate 2847c478bd9Sstevel@tonic-gate int au_event; /* default audit event for this system call */ 2857c478bd9Sstevel@tonic-gate void (*au_start)(struct t_audit_data *); 2867c478bd9Sstevel@tonic-gate /* pre-system call audit processing */ 2877c478bd9Sstevel@tonic-gate void (*au_finish)(struct t_audit_data *, int, union rval *); 2887c478bd9Sstevel@tonic-gate /* post-system call audit processing */ 2897c478bd9Sstevel@tonic-gate int au_ctrl; /* control flags for auditing actions */ 2907c478bd9Sstevel@tonic-gate }; 2917c478bd9Sstevel@tonic-gate 2927c478bd9Sstevel@tonic-gate extern struct audit_s2e audit_s2e[]; 2937c478bd9Sstevel@tonic-gate 2947c478bd9Sstevel@tonic-gate #define AUK_VALID 0x5A5A5A5A 2957c478bd9Sstevel@tonic-gate #define AUK_INVALID 0 2967c478bd9Sstevel@tonic-gate /* 2977c478bd9Sstevel@tonic-gate * per zone audit context 2987c478bd9Sstevel@tonic-gate */ 2997c478bd9Sstevel@tonic-gate struct au_kcontext { 3007c478bd9Sstevel@tonic-gate uint32_t auk_valid; 3017c478bd9Sstevel@tonic-gate zoneid_t auk_zid; 3027c478bd9Sstevel@tonic-gate 3037c478bd9Sstevel@tonic-gate boolean_t auk_hostaddr_valid; 3047c478bd9Sstevel@tonic-gate int auk_sequence; 3057c478bd9Sstevel@tonic-gate int auk_auditstate; 3067c478bd9Sstevel@tonic-gate int auk_output_active; 3077c478bd9Sstevel@tonic-gate struct vnode *auk_current_vp; 3087c478bd9Sstevel@tonic-gate int auk_policy; 3097c478bd9Sstevel@tonic-gate 3107c478bd9Sstevel@tonic-gate struct audit_queue auk_queue; 3117c478bd9Sstevel@tonic-gate 3127c478bd9Sstevel@tonic-gate char *auk_buffer; /* auditsvc output */ 3137c478bd9Sstevel@tonic-gate au_dbuf_t *auk_dbuffer; /* auditdoor output */ 3147c478bd9Sstevel@tonic-gate 3157c478bd9Sstevel@tonic-gate au_stat_t auk_statistics; 3167c478bd9Sstevel@tonic-gate 3177c478bd9Sstevel@tonic-gate struct auditinfo_addr auk_info; 3187c478bd9Sstevel@tonic-gate kmutex_t auk_eagain_mutex; /* door call retry */ 3197c478bd9Sstevel@tonic-gate kcondvar_t auk_eagain_cv; 3207c478bd9Sstevel@tonic-gate kmutex_t auk_fstat_lock; /* audit file statistics lock */ 3217c478bd9Sstevel@tonic-gate au_fstat_t auk_file_stat; /* file statistics */ 3227c478bd9Sstevel@tonic-gate 3237c478bd9Sstevel@tonic-gate taskq_t *auk_taskq; /* output thread */ 3247c478bd9Sstevel@tonic-gate 3257c478bd9Sstevel@tonic-gate /* Only one audit svc per zone at a time */ 3267c478bd9Sstevel@tonic-gate kmutex_t auk_svc_lock; 3277c478bd9Sstevel@tonic-gate /* 1 during auditsvc, 2 during auditdoor */ 3287c478bd9Sstevel@tonic-gate int auk_svc_busy; 329*d31ffe99Srica au_state_t auk_ets[MAX_KEVENTS + 1]; 3307c478bd9Sstevel@tonic-gate }; 3317c478bd9Sstevel@tonic-gate #ifndef AUK_CONTEXT_T 3327c478bd9Sstevel@tonic-gate #define AUK_CONTEXT_T 3337c478bd9Sstevel@tonic-gate typedef struct au_kcontext au_kcontext_t; 3347c478bd9Sstevel@tonic-gate #endif 3357c478bd9Sstevel@tonic-gate 3367c478bd9Sstevel@tonic-gate extern zone_key_t au_zone_key; 3377c478bd9Sstevel@tonic-gate 3387c478bd9Sstevel@tonic-gate /* 3397c478bd9Sstevel@tonic-gate * Kernel auditing external variables 3407c478bd9Sstevel@tonic-gate */ 3417c478bd9Sstevel@tonic-gate extern int audit_policy; 3427c478bd9Sstevel@tonic-gate extern int audit_active; 3437c478bd9Sstevel@tonic-gate extern int audit_load; 3447c478bd9Sstevel@tonic-gate extern int au_auditstate; 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate extern struct audit_queue au_queue; 3477c478bd9Sstevel@tonic-gate extern struct p_audit_data *pad0; 3487c478bd9Sstevel@tonic-gate extern struct t_audit_data *tad0; 3497c478bd9Sstevel@tonic-gate 3507c478bd9Sstevel@tonic-gate /* 3517c478bd9Sstevel@tonic-gate * audit_path support routines 3527c478bd9Sstevel@tonic-gate */ 3537c478bd9Sstevel@tonic-gate void au_pathhold(struct audit_path *); 3547c478bd9Sstevel@tonic-gate void au_pathrele(struct audit_path *); 3557c478bd9Sstevel@tonic-gate struct audit_path *au_pathdup(const struct audit_path *, int, int); 3567c478bd9Sstevel@tonic-gate 3577c478bd9Sstevel@tonic-gate /* 3587c478bd9Sstevel@tonic-gate * Macros to hide asynchronous, non-blocking audit record start and finish 3597c478bd9Sstevel@tonic-gate * processing. 3607c478bd9Sstevel@tonic-gate * 3617c478bd9Sstevel@tonic-gate * NOTE: must be used in (void) funcction () { ... } 3627c478bd9Sstevel@tonic-gate */ 3637c478bd9Sstevel@tonic-gate 3647c478bd9Sstevel@tonic-gate #define AUDIT_ASYNC_START(rp, audit_event, sorf) \ 3657c478bd9Sstevel@tonic-gate { \ 3667c478bd9Sstevel@tonic-gate label_t jb; \ 3677c478bd9Sstevel@tonic-gate if (setjmp(&jb)) { \ 3687c478bd9Sstevel@tonic-gate /* cleanup any residual audit data */ \ 3697c478bd9Sstevel@tonic-gate audit_async_drop((caddr_t *)&(rp), 0); \ 3707c478bd9Sstevel@tonic-gate return; \ 3717c478bd9Sstevel@tonic-gate } \ 3727c478bd9Sstevel@tonic-gate /* auditing enabled and we're preselected for this event? */ \ 3737c478bd9Sstevel@tonic-gate if (audit_async_start(&jb, audit_event, sorf)) { \ 3747c478bd9Sstevel@tonic-gate return; \ 3757c478bd9Sstevel@tonic-gate } \ 3767c478bd9Sstevel@tonic-gate } 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate #define AUDIT_ASYNC_FINISH(rp, audit_event, event_modifier) \ 3797c478bd9Sstevel@tonic-gate audit_async_finish((caddr_t *)&(rp), audit_event, event_modifier); 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate 3827c478bd9Sstevel@tonic-gate #ifdef _KERNEL 3837c478bd9Sstevel@tonic-gate au_buff_t *au_get_buff(void), *au_free_buff(au_buff_t *); 3847c478bd9Sstevel@tonic-gate #endif 3857c478bd9Sstevel@tonic-gate 3867c478bd9Sstevel@tonic-gate /* 38781490fd2Sgww * Macro for uniform "subject" token(s) generation 3887c478bd9Sstevel@tonic-gate */ 38981490fd2Sgww #define AUDIT_SETSUBJ(u, c, a, k) \ 39081490fd2Sgww au_write((u), \ 39181490fd2Sgww au_to_subject(crgetuid(c), \ 39281490fd2Sgww crgetgid(c), crgetruid(c), \ 39381490fd2Sgww crgetrgid(c), curproc->p_pid, \ 39481490fd2Sgww (a)->ai_auid, (a)->ai_asid, \ 39581490fd2Sgww &((a)->ai_termid))); \ 39681490fd2Sgww if (is_system_labeled()) \ 39781490fd2Sgww au_write((u), \ 39881490fd2Sgww au_to_label(CR_SL((c)))); \ 39981490fd2Sgww if ((k)->auk_policy & AUDIT_GROUP) \ 40081490fd2Sgww au_write((u), \ 40181490fd2Sgww au_to_groups(crgetgroups(c),\ 4027c478bd9Sstevel@tonic-gate crgetngroups(c))) 4037c478bd9Sstevel@tonic-gate 4047c478bd9Sstevel@tonic-gate /* 4057c478bd9Sstevel@tonic-gate * Macros for type conversion 4067c478bd9Sstevel@tonic-gate */ 4077c478bd9Sstevel@tonic-gate 4087c478bd9Sstevel@tonic-gate /* au_membuf head, to typed data */ 4097c478bd9Sstevel@tonic-gate #define memtod(x, t) ((t)x->buf) 4107c478bd9Sstevel@tonic-gate 4117c478bd9Sstevel@tonic-gate /* au_membuf types */ 4127c478bd9Sstevel@tonic-gate #define MT_FREE 0 /* should be on free list */ 4137c478bd9Sstevel@tonic-gate #define MT_DATA 1 /* dynamic (data) allocation */ 4147c478bd9Sstevel@tonic-gate 4157c478bd9Sstevel@tonic-gate /* flags to au_memget */ 4167c478bd9Sstevel@tonic-gate #define DONTWAIT 0 4177c478bd9Sstevel@tonic-gate #define WAIT 1 4187c478bd9Sstevel@tonic-gate 4197c478bd9Sstevel@tonic-gate #define AU_PACK 1 /* pack data in au_append_rec() */ 4207c478bd9Sstevel@tonic-gate #define AU_LINK 0 /* link data in au_append_rec() */ 4217c478bd9Sstevel@tonic-gate 4227c478bd9Sstevel@tonic-gate /* flags to async routines */ 4237c478bd9Sstevel@tonic-gate #define AU_BACKEND 1 /* called from softcall backend */ 4247c478bd9Sstevel@tonic-gate 4257c478bd9Sstevel@tonic-gate #ifdef __cplusplus 4267c478bd9Sstevel@tonic-gate } 4277c478bd9Sstevel@tonic-gate #endif 4287c478bd9Sstevel@tonic-gate 4297c478bd9Sstevel@tonic-gate #endif /* _BSM_AUDIT_KERNEL_H */ 430