1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Portions Copyright 2007 Chad Mynhier
  27  * Copyright 2012 DEY Storage Systems, Inc.  All rights reserved.
  28  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
  29  * Copyright (c) 2013 by Delphix. All rights reserved.
  30  */
  31 
  32 /*
  33  * Interfaces available from the process control library, libproc.
  34  *
  35  * libproc provides process control functions for the /proc tools
  36  * (commands in /usr/proc/bin), /usr/bin/truss, and /usr/bin/gcore.
  37  * libproc is a private support library for these commands only.
  38  * It is _not_ a public interface, although it might become one
  39  * in the fullness of time, when the interfaces settle down.
  40  *
  41  * In the meantime, be aware that any program linked with libproc in this
  42  * release of Solaris is almost guaranteed to break in the next release.
  43  *
  44  * In short, do not use this header file or libproc for any purpose.
  45  */
  46 
  47 #ifndef _LIBPROC_H
  48 #define _LIBPROC_H
  49 
  50 #include <stdlib.h>
  51 #include <unistd.h>
  52 #include <fcntl.h>
  53 #include <nlist.h>
  54 #include <door.h>
  55 #include <gelf.h>
  56 #include <proc_service.h>
  57 #include <rtld_db.h>
  58 #include <procfs.h>
  59 #include <ucred.h>
  60 #include <rctl.h>
  61 #include <libctf.h>
  62 #include <sys/stat.h>
  63 #include <sys/statvfs.h>
  64 #include <sys/auxv.h>
  65 #include <sys/resource.h>
  66 #include <sys/socket.h>
  67 #include <sys/utsname.h>
  68 #include <sys/corectl.h>
  69 #if defined(__i386) || defined(__amd64)
  70 #include <sys/sysi86.h>
  71 #endif
  72 
  73 #ifdef  __cplusplus
  74 extern "C" {
  75 #endif
  76 
  77 /*
  78  * Opaque structure tag reference to a process control structure.
  79  * Clients of libproc cannot look inside the process control structure.
  80  * The implementation of struct ps_prochandle can change w/o affecting clients.
  81  */
  82 struct ps_prochandle;
  83 
  84 /*
  85  * Opaque structure tag reference to an lwp control structure.
  86  */
  87 struct ps_lwphandle;
  88 
  89 extern  int     _libproc_debug; /* set non-zero to enable debugging fprintfs */
  90 extern  int     _libproc_no_qsort;      /* set non-zero to inhibit sorting */
  91                                         /* of symbol tables */
  92 extern  int     _libproc_incore_elf;    /* only use in-core elf data */
  93 
  94 #if defined(__sparc)
  95 #define R_RVAL1 R_O0            /* register holding a function return value */
  96 #define R_RVAL2 R_O1            /* 32 more bits for a 64-bit return value */
  97 #endif  /* __sparc */
  98 
  99 #if defined(__amd64)
 100 #define R_PC    REG_RIP
 101 #define R_SP    REG_RSP
 102 #define R_RVAL1 REG_RAX         /* register holding a function return value */
 103 #define R_RVAL2 REG_RDX         /* 32 more bits for a 64-bit return value */
 104 #elif defined(__i386)
 105 #define R_PC    EIP
 106 #define R_SP    UESP
 107 #define R_RVAL1 EAX             /* register holding a function return value */
 108 #define R_RVAL2 EDX             /* 32 more bits for a 64-bit return value */
 109 #endif  /* __amd64 || __i386 */
 110 
 111 #define R_RVAL  R_RVAL1         /* simple function return value register */
 112 
 113 /* maximum sizes of things */
 114 #define PRMAXSIG        (32 * sizeof (sigset_t) / sizeof (uint32_t))
 115 #define PRMAXFAULT      (32 * sizeof (fltset_t) / sizeof (uint32_t))
 116 #define PRMAXSYS        (32 * sizeof (sysset_t) / sizeof (uint32_t))
 117 
 118 /* State values returned by Pstate() */
 119 #define PS_RUN          1       /* process is running */
 120 #define PS_STOP         2       /* process is stopped */
 121 #define PS_LOST         3       /* process is lost to control (EAGAIN) */
 122 #define PS_UNDEAD       4       /* process is terminated (zombie) */
 123 #define PS_DEAD         5       /* process is terminated (core file) */
 124 #define PS_IDLE         6       /* process has not been run */
 125 
 126 /* Flags accepted by Pgrab() */
 127 #define PGRAB_RETAIN    0x01    /* Retain tracing flags, else clear flags */
 128 #define PGRAB_FORCE     0x02    /* Open the process w/o O_EXCL */
 129 #define PGRAB_RDONLY    0x04    /* Open the process or core w/ O_RDONLY */
 130 #define PGRAB_NOSTOP    0x08    /* Open the process but do not stop it */
 131 #define PGRAB_INCORE    0x10    /* Use in-core data to build symbol tables */
 132 
 133 /* Error codes from Pcreate() */
 134 #define C_STRANGE       -1      /* Unanticipated error, errno is meaningful */
 135 #define C_FORK          1       /* Unable to fork */
 136 #define C_PERM          2       /* No permission (file set-id or unreadable) */
 137 #define C_NOEXEC        3       /* Cannot execute file */
 138 #define C_INTR          4       /* Interrupt received while creating */
 139 #define C_LP64          5       /* Program is _LP64, self is _ILP32 */
 140 #define C_NOENT         6       /* Cannot find executable file */
 141 
 142 /* Error codes from Pgrab(), Pfgrab_core(), and Pgrab_core() */
 143 #define G_STRANGE       -1      /* Unanticipated error, errno is meaningful */
 144 #define G_NOPROC        1       /* No such process */
 145 #define G_NOCORE        2       /* No such core file */
 146 #define G_NOPROCORCORE  3       /* No such proc or core (for proc_arg_grab) */
 147 #define G_NOEXEC        4       /* Cannot locate executable file */
 148 #define G_ZOMB          5       /* Zombie process */
 149 #define G_PERM          6       /* No permission */
 150 #define G_BUSY          7       /* Another process has control */
 151 #define G_SYS           8       /* System process */
 152 #define G_SELF          9       /* Process is self */
 153 #define G_INTR          10      /* Interrupt received while grabbing */
 154 #define G_LP64          11      /* Process is _LP64, self is ILP32 */
 155 #define G_FORMAT        12      /* File is not an ELF format core file */
 156 #define G_ELF           13      /* Libelf error, elf_errno() is meaningful */
 157 #define G_NOTE          14      /* Required PT_NOTE Phdr not present in core */
 158 #define G_ISAINVAL      15      /* Wrong ELF machine type */
 159 #define G_BADLWPS       16      /* Bad '/lwps' specification */
 160 #define G_NOFD          17      /* No more file descriptors */
 161 
 162 
 163 /* Flags accepted by Prelease */
 164 #define PRELEASE_CLEAR  0x10    /* Clear all tracing flags */
 165 #define PRELEASE_RETAIN 0x20    /* Retain final tracing flags */
 166 #define PRELEASE_HANG   0x40    /* Leave the process stopped */
 167 #define PRELEASE_KILL   0x80    /* Terminate the process */
 168 
 169 typedef struct {        /* argument descriptor for system call (Psyscall) */
 170         long    arg_value;      /* value of argument given to system call */
 171         void    *arg_object;    /* pointer to object in controlling process */
 172         char    arg_type;       /* AT_BYVAL, AT_BYREF */
 173         char    arg_inout;      /* AI_INPUT, AI_OUTPUT, AI_INOUT */
 174         ushort_t arg_size;      /* if AT_BYREF, size of object in bytes */
 175 } argdes_t;
 176 
 177 /* values for type */
 178 #define AT_BYVAL        1
 179 #define AT_BYREF        2
 180 
 181 /* values for inout */
 182 #define AI_INPUT        1
 183 #define AI_OUTPUT       2
 184 #define AI_INOUT        3
 185 
 186 /* maximum number of syscall arguments */
 187 #define MAXARGS         8
 188 
 189 /* maximum size in bytes of a BYREF argument */
 190 #define MAXARGL         (4*1024)
 191 
 192 /*
 193  * Ops vector definition for the Pgrab_ops().
 194  */
 195 typedef ssize_t (*pop_pread_t)(struct ps_prochandle *, void *, size_t,
 196     uintptr_t, void *);
 197 typedef ssize_t (*pop_pwrite_t)(struct ps_prochandle *, const void *, size_t,
 198     uintptr_t, void *);
 199 typedef int (*pop_read_maps_t)(struct ps_prochandle *, prmap_t **, ssize_t *,
 200     void *);
 201 typedef void (*pop_read_aux_t)(struct ps_prochandle *, auxv_t **, int *,
 202     void *);
 203 typedef int (*pop_cred_t)(struct ps_prochandle *, prcred_t *, int,
 204     void *);
 205 typedef int (*pop_priv_t)(struct ps_prochandle *, prpriv_t **, void *);
 206 typedef const psinfo_t *(*pop_psinfo_t)(struct ps_prochandle *, psinfo_t *,
 207     void *);
 208 typedef void (*pop_status_t)(struct ps_prochandle *, pstatus_t *, void *);
 209 typedef prheader_t *(*pop_lstatus_t)(struct ps_prochandle *, void *);
 210 typedef prheader_t *(*pop_lpsinfo_t)(struct ps_prochandle *, void *);
 211 typedef void (*pop_fini_t)(struct ps_prochandle *, void *);
 212 typedef char *(*pop_platform_t)(struct ps_prochandle *, char *, size_t, void *);
 213 typedef int (*pop_uname_t)(struct ps_prochandle *, struct utsname *, void *);
 214 typedef char *(*pop_zonename_t)(struct ps_prochandle *, char *, size_t, void *);
 215 typedef char *(*pop_execname_t)(struct ps_prochandle *, char *, size_t, void *);
 216 #if defined(__i386) || defined(__amd64)
 217 typedef int (*pop_ldt_t)(struct ps_prochandle *, struct ssd *, int, void *);
 218 #endif
 219 
 220 typedef struct ps_ops {
 221         pop_pread_t             pop_pread;
 222         pop_pwrite_t            pop_pwrite;
 223         pop_read_maps_t         pop_read_maps;
 224         pop_read_aux_t          pop_read_aux;
 225         pop_cred_t              pop_cred;
 226         pop_priv_t              pop_priv;
 227         pop_psinfo_t            pop_psinfo;
 228         pop_status_t            pop_status;
 229         pop_lstatus_t           pop_lstatus;
 230         pop_lpsinfo_t           pop_lpsinfo;
 231         pop_fini_t              pop_fini;
 232         pop_platform_t          pop_platform;
 233         pop_uname_t             pop_uname;
 234         pop_zonename_t          pop_zonename;
 235         pop_execname_t          pop_execname;
 236 #if defined(__i386) || defined(__amd64)
 237         pop_ldt_t               pop_ldt;
 238 #endif
 239 } ps_ops_t;
 240 
 241 /*
 242  * Function prototypes for routines in the process control package.
 243  */
 244 extern struct ps_prochandle *Pcreate(const char *, char *const *,
 245     int *, char *, size_t);
 246 extern struct ps_prochandle *Pxcreate(const char *, char *const *,
 247     char *const *, int *, char *, size_t);
 248 
 249 extern const char *Pcreate_error(int);
 250 
 251 extern struct ps_prochandle *Pgrab(pid_t, int, int *);
 252 extern struct ps_prochandle *Pgrab_core(const char *, const char *, int, int *);
 253 extern struct ps_prochandle *Pfgrab_core(int, const char *, int *);
 254 extern struct ps_prochandle *Pgrab_file(const char *, int *);
 255 extern struct ps_prochandle *Pgrab_ops(pid_t, void *, const ps_ops_t *, int);
 256 extern const char *Pgrab_error(int);
 257 
 258 extern  int     Preopen(struct ps_prochandle *);
 259 extern  void    Prelease(struct ps_prochandle *, int);
 260 extern  void    Pfree(struct ps_prochandle *);
 261 
 262 extern  int     Pasfd(struct ps_prochandle *);
 263 extern  char   *Pbrandname(struct ps_prochandle *, char *, size_t);
 264 extern  int     Pctlfd(struct ps_prochandle *);
 265 extern  int     Pcreate_agent(struct ps_prochandle *);
 266 extern  void    Pdestroy_agent(struct ps_prochandle *);
 267 extern  int     Pstopstatus(struct ps_prochandle *, long, uint_t);
 268 extern  int     Pwait(struct ps_prochandle *, uint_t);
 269 extern  int     Pstop(struct ps_prochandle *, uint_t);
 270 extern  int     Pdstop(struct ps_prochandle *);
 271 extern  int     Pstate(struct ps_prochandle *);
 272 extern  const psinfo_t *Ppsinfo(struct ps_prochandle *);
 273 extern  const pstatus_t *Pstatus(struct ps_prochandle *);
 274 extern  int     Pcred(struct ps_prochandle *, prcred_t *, int);
 275 extern  int     Psetcred(struct ps_prochandle *, const prcred_t *);
 276 extern  int     Ppriv(struct ps_prochandle *, prpriv_t **);
 277 extern  int     Psetpriv(struct ps_prochandle *, prpriv_t *);
 278 extern  void   *Pprivinfo(struct ps_prochandle *);
 279 extern  int     Psetzoneid(struct ps_prochandle *, zoneid_t);
 280 extern  int     Pgetareg(struct ps_prochandle *, int, prgreg_t *);
 281 extern  int     Pputareg(struct ps_prochandle *, int, prgreg_t);
 282 extern  int     Psetrun(struct ps_prochandle *, int, int);
 283 extern  ssize_t Pread(struct ps_prochandle *, void *, size_t, uintptr_t);
 284 extern  ssize_t Pread_string(struct ps_prochandle *, char *, size_t, uintptr_t);
 285 extern  ssize_t Pwrite(struct ps_prochandle *, const void *, size_t, uintptr_t);
 286 extern  int     Pclearsig(struct ps_prochandle *);
 287 extern  int     Pclearfault(struct ps_prochandle *);
 288 extern  int     Psetbkpt(struct ps_prochandle *, uintptr_t, ulong_t *);
 289 extern  int     Pdelbkpt(struct ps_prochandle *, uintptr_t, ulong_t);
 290 extern  int     Pxecbkpt(struct ps_prochandle *, ulong_t);
 291 extern  int     Psetwapt(struct ps_prochandle *, const prwatch_t *);
 292 extern  int     Pdelwapt(struct ps_prochandle *, const prwatch_t *);
 293 extern  int     Pxecwapt(struct ps_prochandle *, const prwatch_t *);
 294 extern  int     Psetflags(struct ps_prochandle *, long);
 295 extern  int     Punsetflags(struct ps_prochandle *, long);
 296 extern  int     Psignal(struct ps_prochandle *, int, int);
 297 extern  int     Pfault(struct ps_prochandle *, int, int);
 298 extern  int     Psysentry(struct ps_prochandle *, int, int);
 299 extern  int     Psysexit(struct ps_prochandle *, int, int);
 300 extern  void    Psetsignal(struct ps_prochandle *, const sigset_t *);
 301 extern  void    Psetfault(struct ps_prochandle *, const fltset_t *);
 302 extern  void    Psetsysentry(struct ps_prochandle *, const sysset_t *);
 303 extern  void    Psetsysexit(struct ps_prochandle *, const sysset_t *);
 304 
 305 extern  void    Psync(struct ps_prochandle *);
 306 extern  int     Psyscall(struct ps_prochandle *, sysret_t *,
 307                         int, uint_t, argdes_t *);
 308 extern  int     Pisprocdir(struct ps_prochandle *, const char *);
 309 
 310 /*
 311  * Function prototypes for lwp-specific operations.
 312  */
 313 extern  struct ps_lwphandle *Lgrab(struct ps_prochandle *, lwpid_t, int *);
 314 extern  const char *Lgrab_error(int);
 315 
 316 extern  struct ps_prochandle *Lprochandle(struct ps_lwphandle *);
 317 extern  void    Lfree(struct ps_lwphandle *);
 318 
 319 extern  int     Lctlfd(struct ps_lwphandle *);
 320 extern  int     Lwait(struct ps_lwphandle *, uint_t);
 321 extern  int     Lstop(struct ps_lwphandle *, uint_t);
 322 extern  int     Ldstop(struct ps_lwphandle *);
 323 extern  int     Lstate(struct ps_lwphandle *);
 324 extern  const lwpsinfo_t *Lpsinfo(struct ps_lwphandle *);
 325 extern  const lwpstatus_t *Lstatus(struct ps_lwphandle *);
 326 extern  int     Lgetareg(struct ps_lwphandle *, int, prgreg_t *);
 327 extern  int     Lputareg(struct ps_lwphandle *, int, prgreg_t);
 328 extern  int     Lsetrun(struct ps_lwphandle *, int, int);
 329 extern  int     Lclearsig(struct ps_lwphandle *);
 330 extern  int     Lclearfault(struct ps_lwphandle *);
 331 extern  int     Lxecbkpt(struct ps_lwphandle *, ulong_t);
 332 extern  int     Lxecwapt(struct ps_lwphandle *, const prwatch_t *);
 333 extern  void    Lsync(struct ps_lwphandle *);
 334 
 335 extern  int     Lstack(struct ps_lwphandle *, stack_t *);
 336 extern  int     Lmain_stack(struct ps_lwphandle *, stack_t *);
 337 extern  int     Lalt_stack(struct ps_lwphandle *, stack_t *);
 338 
 339 /*
 340  * Function prototypes for system calls forced on the victim process.
 341  */
 342 extern  int     pr_open(struct ps_prochandle *, const char *, int, mode_t);
 343 extern  int     pr_creat(struct ps_prochandle *, const char *, mode_t);
 344 extern  int     pr_close(struct ps_prochandle *, int);
 345 extern  int     pr_access(struct ps_prochandle *, const char *, int);
 346 extern  int     pr_door_info(struct ps_prochandle *, int, struct door_info *);
 347 extern  void    *pr_mmap(struct ps_prochandle *,
 348                         void *, size_t, int, int, int, off_t);
 349 extern  void    *pr_zmap(struct ps_prochandle *,
 350                         void *, size_t, int, int);
 351 extern  int     pr_munmap(struct ps_prochandle *, void *, size_t);
 352 extern  int     pr_memcntl(struct ps_prochandle *,
 353                         caddr_t, size_t, int, caddr_t, int, int);
 354 extern  int     pr_meminfo(struct ps_prochandle *, const uint64_t *addrs,
 355                         int addr_count, const uint_t *info, int info_count,
 356                         uint64_t *outdata, uint_t *validity);
 357 extern  int     pr_sigaction(struct ps_prochandle *,
 358                         int, const struct sigaction *, struct sigaction *);
 359 extern  int     pr_getitimer(struct ps_prochandle *,
 360                         int, struct itimerval *);
 361 extern  int     pr_setitimer(struct ps_prochandle *,
 362                         int, const struct itimerval *, struct itimerval *);
 363 extern  int     pr_ioctl(struct ps_prochandle *, int, int, void *, size_t);
 364 extern  int     pr_fcntl(struct ps_prochandle *, int, int, void *);
 365 extern  int     pr_stat(struct ps_prochandle *, const char *, struct stat *);
 366 extern  int     pr_lstat(struct ps_prochandle *, const char *, struct stat *);
 367 extern  int     pr_fstat(struct ps_prochandle *, int, struct stat *);
 368 extern  int     pr_stat64(struct ps_prochandle *, const char *,
 369                         struct stat64 *);
 370 extern  int     pr_lstat64(struct ps_prochandle *, const char *,
 371                         struct stat64 *);
 372 extern  int     pr_fstat64(struct ps_prochandle *, int, struct stat64 *);
 373 extern  int     pr_statvfs(struct ps_prochandle *, const char *, statvfs_t *);
 374 extern  int     pr_fstatvfs(struct ps_prochandle *, int, statvfs_t *);
 375 extern  projid_t pr_getprojid(struct ps_prochandle *Pr);
 376 extern  taskid_t pr_gettaskid(struct ps_prochandle *Pr);
 377 extern  taskid_t pr_settaskid(struct ps_prochandle *Pr, projid_t project,
 378                         int flags);
 379 extern  zoneid_t pr_getzoneid(struct ps_prochandle *Pr);
 380 extern  int     pr_getrctl(struct ps_prochandle *,
 381                         const char *, rctlblk_t *, rctlblk_t *, int);
 382 extern  int     pr_setrctl(struct ps_prochandle *,
 383                         const char *, rctlblk_t *, rctlblk_t *, int);
 384 extern  int     pr_getrlimit(struct ps_prochandle *,
 385                         int, struct rlimit *);
 386 extern  int     pr_setrlimit(struct ps_prochandle *,
 387                         int, const struct rlimit *);
 388 extern  int     pr_setprojrctl(struct ps_prochandle *, const char *,
 389                         rctlblk_t *, size_t, int);
 390 #if defined(_LARGEFILE64_SOURCE)
 391 extern  int     pr_getrlimit64(struct ps_prochandle *,
 392                         int, struct rlimit64 *);
 393 extern  int     pr_setrlimit64(struct ps_prochandle *,
 394                         int, const struct rlimit64 *);
 395 #endif  /* _LARGEFILE64_SOURCE */
 396 extern  int     pr_lwp_exit(struct ps_prochandle *);
 397 extern  int     pr_exit(struct ps_prochandle *, int);
 398 extern  int     pr_waitid(struct ps_prochandle *,
 399                         idtype_t, id_t, siginfo_t *, int);
 400 extern  off_t   pr_lseek(struct ps_prochandle *, int, off_t, int);
 401 extern  offset_t pr_llseek(struct ps_prochandle *, int, offset_t, int);
 402 extern  int     pr_rename(struct ps_prochandle *, const char *, const char *);
 403 extern  int     pr_link(struct ps_prochandle *, const char *, const char *);
 404 extern  int     pr_unlink(struct ps_prochandle *, const char *);
 405 extern  int     pr_getpeerucred(struct ps_prochandle *, int, ucred_t **);
 406 extern  int     pr_getpeername(struct ps_prochandle *,
 407                         int, struct sockaddr *, socklen_t *);
 408 extern  int     pr_getsockname(struct ps_prochandle *,
 409                         int, struct sockaddr *, socklen_t *);
 410 extern  int     pr_getsockopt(struct ps_prochandle *,
 411                         int, int, int, void *, int *);
 412 extern  int     pr_processor_bind(struct ps_prochandle *,
 413                         idtype_t, id_t, int, int *);
 414 
 415 /*
 416  * Function prototypes for accessing per-LWP register information.
 417  */
 418 extern int Plwp_getregs(struct ps_prochandle *, lwpid_t, prgregset_t);
 419 extern int Plwp_setregs(struct ps_prochandle *, lwpid_t, const prgregset_t);
 420 
 421 extern int Plwp_getfpregs(struct ps_prochandle *, lwpid_t, prfpregset_t *);
 422 extern int Plwp_setfpregs(struct ps_prochandle *, lwpid_t,
 423     const prfpregset_t *);
 424 
 425 #if defined(__sparc)
 426 
 427 extern int Plwp_getxregs(struct ps_prochandle *, lwpid_t, prxregset_t *);
 428 extern int Plwp_setxregs(struct ps_prochandle *, lwpid_t, const prxregset_t *);
 429 
 430 extern int Plwp_getgwindows(struct ps_prochandle *, lwpid_t, gwindows_t *);
 431 
 432 #if defined(__sparcv9)
 433 extern int Plwp_getasrs(struct ps_prochandle *, lwpid_t, asrset_t);
 434 extern int Plwp_setasrs(struct ps_prochandle *, lwpid_t, const asrset_t);
 435 #endif  /* __sparcv9 */
 436 
 437 #endif  /* __sparc */
 438 
 439 #if defined(__i386) || defined(__amd64)
 440 extern  int     Pldt(struct ps_prochandle *, struct ssd *, int);
 441 extern  int     proc_get_ldt(pid_t, struct ssd *, int);
 442 #endif  /* __i386 || __amd64 */
 443 
 444 extern int Plwp_getpsinfo(struct ps_prochandle *, lwpid_t, lwpsinfo_t *);
 445 extern int Plwp_getspymaster(struct ps_prochandle *, lwpid_t, psinfo_t *);
 446 
 447 extern int Plwp_stack(struct ps_prochandle *, lwpid_t, stack_t *);
 448 extern int Plwp_main_stack(struct ps_prochandle *, lwpid_t, stack_t *);
 449 extern int Plwp_alt_stack(struct ps_prochandle *, lwpid_t, stack_t *);
 450 
 451 /*
 452  * LWP iteration interface; iterate over all active LWPs.
 453  */
 454 typedef int proc_lwp_f(void *, const lwpstatus_t *);
 455 extern int Plwp_iter(struct ps_prochandle *, proc_lwp_f *, void *);
 456 
 457 /*
 458  * LWP iteration interface; iterate over all LWPs, active and zombie.
 459  */
 460 typedef int proc_lwp_all_f(void *, const lwpstatus_t *, const lwpsinfo_t *);
 461 extern int Plwp_iter_all(struct ps_prochandle *, proc_lwp_all_f *, void *);
 462 
 463 /*
 464  * Process iteration interface; iterate over all non-system processes.
 465  */
 466 typedef int proc_walk_f(psinfo_t *, lwpsinfo_t *, void *);
 467 extern int proc_walk(proc_walk_f *, void *, int);
 468 
 469 #define PR_WALK_PROC    0               /* walk processes only */
 470 #define PR_WALK_LWP     1               /* walk all lwps */
 471 
 472 /*
 473  * Determine if an lwp is in a set as returned from proc_arg_xgrab().
 474  */
 475 extern int proc_lwp_in_set(const char *, lwpid_t);
 476 extern int proc_lwp_range_valid(const char *);
 477 
 478 /*
 479  * Symbol table interfaces.
 480  */
 481 
 482 /*
 483  * Pseudo-names passed to Plookup_by_name() for well-known load objects.
 484  * NOTE: It is required that PR_OBJ_EXEC and PR_OBJ_LDSO exactly match
 485  * the definitions of PS_OBJ_EXEC and PS_OBJ_LDSO from <proc_service.h>.
 486  */
 487 #define PR_OBJ_EXEC     ((const char *)0)       /* search the executable file */
 488 #define PR_OBJ_LDSO     ((const char *)1)       /* search ld.so.1 */
 489 #define PR_OBJ_EVERY    ((const char *)-1)      /* search every load object */
 490 
 491 /*
 492  * Special Lmid_t passed to Plookup_by_lmid() to search all link maps.  The
 493  * special values LM_ID_BASE and LM_ID_LDSO from <link.h> may also be used.
 494  * If PR_OBJ_EXEC is used as the object name, the lmid must be PR_LMID_EVERY
 495  * or LM_ID_BASE in order to return a match.  If PR_OBJ_LDSO is used as the
 496  * object name, the lmid must be PR_LMID_EVERY or LM_ID_LDSO to return a match.
 497  */
 498 #define PR_LMID_EVERY   ((Lmid_t)-1UL)          /* search every link map */
 499 
 500 /*
 501  * 'object_name' is the name of a load object obtained from an
 502  * iteration over the process's address space mappings (Pmapping_iter),
 503  * or an iteration over the process's mapped objects (Pobject_iter),
 504  * or else it is one of the special PR_OBJ_* values above.
 505  */
 506 extern int Plookup_by_name(struct ps_prochandle *,
 507     const char *, const char *, GElf_Sym *);
 508 
 509 extern int Plookup_by_addr(struct ps_prochandle *,
 510     uintptr_t, char *, size_t, GElf_Sym *);
 511 
 512 typedef struct prsyminfo {
 513         const char      *prs_object;            /* object name */
 514         const char      *prs_name;              /* symbol name */
 515         Lmid_t          prs_lmid;               /* link map id */
 516         uint_t          prs_id;                 /* symbol id */
 517         uint_t          prs_table;              /* symbol table id */
 518 } prsyminfo_t;
 519 
 520 extern int Pxlookup_by_name(struct ps_prochandle *,
 521     Lmid_t, const char *, const char *, GElf_Sym *, prsyminfo_t *);
 522 
 523 extern int Pxlookup_by_addr(struct ps_prochandle *,
 524     uintptr_t, char *, size_t, GElf_Sym *, prsyminfo_t *);
 525 extern int Pxlookup_by_addr_resolved(struct ps_prochandle *,
 526     uintptr_t, char *, size_t, GElf_Sym *, prsyminfo_t *);
 527 
 528 typedef int proc_map_f(void *, const prmap_t *, const char *);
 529 
 530 extern int Pmapping_iter(struct ps_prochandle *, proc_map_f *, void *);
 531 extern int Pmapping_iter_resolved(struct ps_prochandle *, proc_map_f *, void *);
 532 extern int Pobject_iter(struct ps_prochandle *, proc_map_f *, void *);
 533 extern int Pobject_iter_resolved(struct ps_prochandle *, proc_map_f *, void *);
 534 
 535 extern const prmap_t *Paddr_to_map(struct ps_prochandle *, uintptr_t);
 536 extern const prmap_t *Paddr_to_text_map(struct ps_prochandle *, uintptr_t);
 537 extern const prmap_t *Pname_to_map(struct ps_prochandle *, const char *);
 538 extern const prmap_t *Plmid_to_map(struct ps_prochandle *,
 539     Lmid_t, const char *);
 540 
 541 extern const rd_loadobj_t *Paddr_to_loadobj(struct ps_prochandle *, uintptr_t);
 542 extern const rd_loadobj_t *Pname_to_loadobj(struct ps_prochandle *,
 543     const char *);
 544 extern const rd_loadobj_t *Plmid_to_loadobj(struct ps_prochandle *,
 545     Lmid_t, const char *);
 546 
 547 extern ctf_file_t *Paddr_to_ctf(struct ps_prochandle *, uintptr_t);
 548 extern ctf_file_t *Pname_to_ctf(struct ps_prochandle *, const char *);
 549 
 550 extern char *Pplatform(struct ps_prochandle *, char *, size_t);
 551 extern int Puname(struct ps_prochandle *, struct utsname *);
 552 extern char *Pzonename(struct ps_prochandle *, char *, size_t);
 553 extern char *Pfindobj(struct ps_prochandle *, const char *, char *, size_t);
 554 
 555 extern char *Pexecname(struct ps_prochandle *, char *, size_t);
 556 extern char *Pobjname(struct ps_prochandle *, uintptr_t, char *, size_t);
 557 extern char *Pobjname_resolved(struct ps_prochandle *, uintptr_t, char *,
 558     size_t);
 559 extern int Plmid(struct ps_prochandle *, uintptr_t, Lmid_t *);
 560 
 561 typedef int proc_env_f(void *, struct ps_prochandle *, uintptr_t, const char *);
 562 extern  int Penv_iter(struct ps_prochandle *, proc_env_f *, void *);
 563 extern char *Pgetenv(struct ps_prochandle *, const char *, char *, size_t);
 564 extern long Pgetauxval(struct ps_prochandle *, int);
 565 extern const auxv_t *Pgetauxvec(struct ps_prochandle *);
 566 
 567 extern void Pset_procfs_path(const char *);
 568 
 569 /*
 570  * Symbol table iteration interface.  The special lmid constants LM_ID_BASE,
 571  * LM_ID_LDSO, and PR_LMID_EVERY may be used with Psymbol_iter_by_lmid.
 572  */
 573 typedef int proc_sym_f(void *, const GElf_Sym *, const char *);
 574 typedef int proc_xsym_f(void *, const GElf_Sym *, const char *,
 575     const prsyminfo_t *);
 576 
 577 extern int Psymbol_iter(struct ps_prochandle *,
 578     const char *, int, int, proc_sym_f *, void *);
 579 extern int Psymbol_iter_by_addr(struct ps_prochandle *,
 580     const char *, int, int, proc_sym_f *, void *);
 581 extern int Psymbol_iter_by_name(struct ps_prochandle *,
 582     const char *, int, int, proc_sym_f *, void *);
 583 
 584 extern int Psymbol_iter_by_lmid(struct ps_prochandle *,
 585     Lmid_t, const char *, int, int, proc_sym_f *, void *);
 586 
 587 extern int Pxsymbol_iter(struct ps_prochandle *,
 588     Lmid_t, const char *, int, int, proc_xsym_f *, void *);
 589 
 590 /*
 591  * 'which' selects which symbol table and can be one of the following.
 592  */
 593 #define PR_SYMTAB       1
 594 #define PR_DYNSYM       2
 595 /*
 596  * 'type' selects the symbols of interest by binding and type.  It is a bit-
 597  * mask of one or more of the following flags, whose order MUST match the
 598  * order of STB and STT constants in <sys/elf.h>.
 599  */
 600 #define BIND_LOCAL      0x0001
 601 #define BIND_GLOBAL     0x0002
 602 #define BIND_WEAK       0x0004
 603 #define BIND_ANY (BIND_LOCAL|BIND_GLOBAL|BIND_WEAK)
 604 #define TYPE_NOTYPE     0x0100
 605 #define TYPE_OBJECT     0x0200
 606 #define TYPE_FUNC       0x0400
 607 #define TYPE_SECTION    0x0800
 608 #define TYPE_FILE       0x1000
 609 #define TYPE_ANY (TYPE_NOTYPE|TYPE_OBJECT|TYPE_FUNC|TYPE_SECTION|TYPE_FILE)
 610 
 611 /*
 612  * This returns the rtld_db agent handle for the process.
 613  * The handle will become invalid at the next successful exec() and
 614  * must not be used beyond that point (see Preset_maps(), below).
 615  */
 616 extern rd_agent_t *Prd_agent(struct ps_prochandle *);
 617 
 618 /*
 619  * This should be called when an RD_DLACTIVITY event with the
 620  * RD_CONSISTENT state occurs via librtld_db's event mechanism.
 621  * This makes libproc's address space mappings and symbol tables current.
 622  * The variant Pupdate_syms() can be used to preload all symbol tables as well.
 623  */
 624 extern void Pupdate_maps(struct ps_prochandle *);
 625 extern void Pupdate_syms(struct ps_prochandle *);
 626 
 627 /*
 628  * This must be called after the victim process performs a successful
 629  * exec() if any of the symbol table interface functions have been called
 630  * prior to that point.  This is essential because an exec() invalidates
 631  * all previous symbol table and address space mapping information.
 632  * It is always safe to call, but if it is called other than after an
 633  * exec() by the victim process it just causes unnecessary overhead.
 634  *
 635  * The rtld_db agent handle obtained from a previous call to Prd_agent() is
 636  * made invalid by Preset_maps() and Prd_agent() must be called again to get
 637  * the new handle.
 638  */
 639 extern void Preset_maps(struct ps_prochandle *);
 640 
 641 /*
 642  * Given an address, Ppltdest() determines if this is part of a PLT, and if
 643  * so returns a pointer to the symbol name that will be used for resolution.
 644  * If the specified address is not part of a PLT, the function returns NULL.
 645  */
 646 extern const char *Ppltdest(struct ps_prochandle *, uintptr_t);
 647 
 648 /*
 649  * See comments for Pissyscall(), in Pisadep.h
 650  */
 651 extern int Pissyscall_prev(struct ps_prochandle *, uintptr_t, uintptr_t *);
 652 
 653 /*
 654  * Stack frame iteration interface.
 655  */
 656 typedef int proc_stack_f(void *, prgregset_t, uint_t, const long *);
 657 
 658 extern int Pstack_iter(struct ps_prochandle *,
 659     const prgregset_t, proc_stack_f *, void *);
 660 
 661 /*
 662  * The following functions define a set of passive interfaces: libproc provides
 663  * default, empty definitions that are called internally.  If a client wishes
 664  * to override these definitions, it can simply provide its own version with
 665  * the same signature that interposes on the libproc definition.
 666  *
 667  * If the client program wishes to report additional error information, it
 668  * can provide its own version of Perror_printf.
 669  *
 670  * If the client program wishes to receive a callback after Pcreate forks
 671  * but before it execs, it can provide its own version of Pcreate_callback.
 672  */
 673 extern void Perror_printf(struct ps_prochandle *P, const char *format, ...);
 674 extern void Pcreate_callback(struct ps_prochandle *);
 675 
 676 /*
 677  * Remove unprintable characters from psinfo.pr_psargs and replace with
 678  * whitespace characters so it is safe for printing.
 679  */
 680 extern void proc_unctrl_psinfo(psinfo_t *);
 681 
 682 /*
 683  * Utility functions for processing arguments which should be /proc files,
 684  * pids, and/or core files.  The returned error code can be passed to
 685  * Pgrab_error() in order to convert it to an error string.
 686  */
 687 #define PR_ARG_PIDS     0x1     /* Allow pid and /proc file arguments */
 688 #define PR_ARG_CORES    0x2     /* Allow core file arguments */
 689 
 690 #define PR_ARG_ANY      (PR_ARG_PIDS | PR_ARG_CORES)
 691 
 692 extern struct ps_prochandle *proc_arg_grab(const char *, int, int, int *);
 693 extern struct ps_prochandle *proc_arg_xgrab(const char *, const char *, int,
 694     int, int *, const char **);
 695 extern pid_t proc_arg_psinfo(const char *, int, psinfo_t *, int *);
 696 extern pid_t proc_arg_xpsinfo(const char *, int, psinfo_t *, int *,
 697     const char **);
 698 
 699 /*
 700  * Utility functions for obtaining information via /proc without actually
 701  * performing a Pcreate() or Pgrab():
 702  */
 703 extern int proc_get_auxv(pid_t, auxv_t *, int);
 704 extern int proc_get_cred(pid_t, prcred_t *, int);
 705 extern prpriv_t *proc_get_priv(pid_t);
 706 extern int proc_get_psinfo(pid_t, psinfo_t *);
 707 extern int proc_get_status(pid_t, pstatus_t *);
 708 
 709 /*
 710  * Utility functions for debugging tools to convert numeric fault,
 711  * signal, and system call numbers to symbolic names:
 712  */
 713 #define FLT2STR_MAX 32  /* max. string length of faults (like SIG2STR_MAX) */
 714 #define SYS2STR_MAX 32  /* max. string length of syscalls (like SIG2STR_MAX) */
 715 
 716 extern char *proc_fltname(int, char *, size_t);
 717 extern char *proc_signame(int, char *, size_t);
 718 extern char *proc_sysname(int, char *, size_t);
 719 
 720 /*
 721  * Utility functions for debugging tools to convert fault, signal, and system
 722  * call names back to the numeric constants:
 723  */
 724 extern int proc_str2flt(const char *, int *);
 725 extern int proc_str2sig(const char *, int *);
 726 extern int proc_str2sys(const char *, int *);
 727 
 728 /*
 729  * Utility functions for debugging tools to convert a fault, signal or system
 730  * call set to a string representation (e.g. "BUS,SEGV" or "open,close,read").
 731  */
 732 #define PRSIGBUFSZ      1024    /* buffer size for proc_sigset2str() */
 733 
 734 extern char *proc_fltset2str(const fltset_t *, const char *, int,
 735     char *, size_t);
 736 extern char *proc_sigset2str(const sigset_t *, const char *, int,
 737     char *, size_t);
 738 extern char *proc_sysset2str(const sysset_t *, const char *, int,
 739     char *, size_t);
 740 
 741 extern int Pgcore(struct ps_prochandle *, const char *, core_content_t);
 742 extern int Pfgcore(struct ps_prochandle *, int, core_content_t);
 743 extern core_content_t Pcontent(struct ps_prochandle *);
 744 
 745 /*
 746  * Utility functions for debugging tools to convert a string representation of
 747  * a fault, signal or system call set back to the numeric value of the
 748  * corresponding set type.
 749  */
 750 extern char *proc_str2fltset(const char *, const char *, int, fltset_t *);
 751 extern char *proc_str2sigset(const char *, const char *, int, sigset_t *);
 752 extern char *proc_str2sysset(const char *, const char *, int, sysset_t *);
 753 
 754 /*
 755  * Utility functions for converting between strings and core_content_t.
 756  */
 757 #define PRCONTENTBUFSZ  80      /* buffer size for proc_content2str() */
 758 
 759 extern int proc_str2content(const char *, core_content_t *);
 760 extern int proc_content2str(core_content_t, char *, size_t);
 761 
 762 /*
 763  * Utility functions for buffering output to stdout, stderr while
 764  * process is grabbed.  Prevents deadlocks due to pfiles `pgrep xterm`
 765  * and other varients.
 766  */
 767 extern int proc_initstdio(void);
 768 extern int proc_flushstdio(void);
 769 extern int proc_finistdio(void);
 770 
 771 /*
 772  * Iterate over all open files.
 773  */
 774 typedef int proc_fdinfo_f(void *, prfdinfo_t *);
 775 extern int Pfdinfo_iter(struct ps_prochandle *, proc_fdinfo_f *, void *);
 776 
 777 #ifdef  __cplusplus
 778 }
 779 #endif
 780 
 781 #endif  /* _LIBPROC_H */