/* * Copyright (c) 1991, 1992 Paul Kranenburg * Copyright (c) 1993 Branko Lankester * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey * Copyright (c) 1996-1999 Wichert Akkerman * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "defs.h" #include "flock.h" #include "xlat/f_owner_types.h" #include "xlat/f_seals.h" #include "xlat/fcntlcmds.h" #include "xlat/fcntl64cmds.h" #include "xlat/fdflags.h" #include "xlat/lockfcmds.h" #include "xlat/notifyflags.h" static void print_struct_flock64(const struct_kernel_flock64 *fl, const int getlk) { tprints("{l_type="); printxval(lockfcmds, fl->l_type, "F_???"); tprints(", l_whence="); printxval(whence_codes, fl->l_whence, "SEEK_???"); tprintf(", l_start=%lld, l_len=%lld", (long long) fl->l_start, (long long) fl->l_len); if (getlk) tprintf(", l_pid=%lu", (unsigned long) fl->l_pid); tprints("}"); } static void printflock64(struct tcb *tcp, const long addr, const int getlk) { struct_kernel_flock64 fl; if (fetch_struct_flock64(tcp, addr, &fl)) print_struct_flock64(&fl, getlk); } static void printflock(struct tcb *tcp, const long addr, const int getlk) { struct_kernel_flock64 fl; if (fetch_struct_flock(tcp, addr, &fl)) print_struct_flock64(&fl, getlk); } static void print_f_owner_ex(struct tcb *tcp, const long addr) { struct { int type, pid; } owner; if (umove_or_printaddr(tcp, addr, &owner)) return; tprints("{type="); printxval(f_owner_types, owner.type, "F_OWNER_???"); tprintf(", pid=%d}", owner.pid); } static int print_fcntl(struct tcb *tcp) { switch (tcp->u_arg[1]) { case F_SETFD: tprints(", "); printflags(fdflags, tcp->u_arg[2], "FD_???"); break; case F_SETOWN: case F_SETPIPE_SZ: tprintf(", %ld", tcp->u_arg[2]); break; case F_DUPFD: case F_DUPFD_CLOEXEC: tprintf(", %ld", tcp->u_arg[2]); return RVAL_DECODED | RVAL_FD; case F_SETFL: tprints(", "); tprint_open_modes(tcp->u_arg[2]); break; case F_SETLK: case F_SETLKW: tprints(", "); printflock(tcp, tcp->u_arg[2], 0); break; case F_OFD_SETLK: case F_OFD_SETLKW: tprints(", "); printflock64(tcp, tcp->u_arg[2], 0); break; case F_SETOWN_EX: tprints(", "); print_f_owner_ex(tcp, tcp->u_arg[2]); break; case F_NOTIFY: tprints(", "); printflags(notifyflags, tcp->u_arg[2], "DN_???"); break; case F_SETLEASE: tprints(", "); printxval(lockfcmds, tcp->u_arg[2], "F_???"); break; case F_ADD_SEALS: tprints(", "); printflags(f_seals, tcp->u_arg[2], "F_SEAL_???"); break; case F_SETSIG: tprints(", "); tprints(signame(tcp->u_arg[2])); break; case F_GETOWN: case F_GETPIPE_SZ: break; case F_GETFD: if (entering(tcp) || syserror(tcp) || tcp->u_rval == 0) return 0; tcp->auxstr = sprintflags("flags ", fdflags, tcp->u_rval); return RVAL_HEX | RVAL_STR; case F_GETFL: if (entering(tcp) || syserror(tcp)) return 0; tcp->auxstr = sprint_open_modes(tcp->u_rval); return RVAL_HEX | RVAL_STR; case F_GETLK: if (entering(tcp)) return 0; tprints(", "); printflock(tcp, tcp->u_arg[2], 1); break; case F_OFD_GETLK: if (entering(tcp)) return 0; tprints(", "); printflock64(tcp, tcp->u_arg[2], 1); break; case F_GETOWN_EX: if (entering(tcp)) return 0; tprints(", "); print_f_owner_ex(tcp, tcp->u_arg[2]); break; case F_GETLEASE: if (entering(tcp) || syserror(tcp)) return 0; tcp->auxstr = xlookup(lockfcmds, tcp->u_rval); return RVAL_HEX | RVAL_STR; case F_GET_SEALS: if (entering(tcp) || syserror(tcp) || tcp->u_rval == 0) return 0; tcp->auxstr = sprintflags("seals ", f_seals, tcp->u_rval); return RVAL_HEX | RVAL_STR; case F_GETSIG: if (entering(tcp) || syserror(tcp) || tcp->u_rval == 0) return 0; tcp->auxstr = signame(tcp->u_rval); return RVAL_STR; default: tprintf(", %#lx", tcp->u_arg[2]); break; } return RVAL_DECODED; } SYS_FUNC(fcntl) { if (entering(tcp)) { printfd(tcp, tcp->u_arg[0]); tprints(", "); const char *str = xlookup(fcntlcmds, tcp->u_arg[1]); if (str) { tprints(str); } else { /* * fcntl syscall does not recognize these * constants, but we would like to show them * for better debugging experience. */ printxval(fcntl64cmds, tcp->u_arg[1], "F_???"); } } return print_fcntl(tcp); } SYS_FUNC(fcntl64) { if (entering(tcp)) { printfd(tcp, tcp->u_arg[0]); tprints(", "); const char *str = xlookup(fcntl64cmds, tcp->u_arg[1]); if (str) { tprints(str); } else { printxval(fcntlcmds, tcp->u_arg[1], "F_???"); } } switch (tcp->u_arg[1]) { case F_SETLK64: case F_SETLKW64: tprints(", "); printflock64(tcp, tcp->u_arg[2], 0); return RVAL_DECODED; case F_GETLK64: if (exiting(tcp)) { tprints(", "); printflock64(tcp, tcp->u_arg[2], 1); } return 0; } return print_fcntl(tcp); }