| @@ -1,1329 +1,1340 @@ | | | @@ -1,1329 +1,1340 @@ |
1 | /* $NetBSD: linux_misc.c,v 1.217 2010/09/11 20:53:04 chs Exp $ */ | | 1 | /* $NetBSD: linux_misc.c,v 1.218 2010/11/02 18:18:07 chs Exp $ */ |
2 | | | 2 | |
3 | /*- | | 3 | /*- |
4 | * Copyright (c) 1995, 1998, 1999, 2008 The NetBSD Foundation, Inc. | | 4 | * Copyright (c) 1995, 1998, 1999, 2008 The NetBSD Foundation, Inc. |
5 | * All rights reserved. | | 5 | * All rights reserved. |
6 | * | | 6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation | | 7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe | | 8 | * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe |
9 | * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center. | | 9 | * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center. |
10 | * | | 10 | * |
11 | * Redistribution and use in source and binary forms, with or without | | 11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions | | 12 | * modification, are permitted provided that the following conditions |
13 | * are met: | | 13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright | | 14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. | | 15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright | | 16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the | | 17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. | | 18 | * documentation and/or other materials provided with the distribution. |
19 | * | | 19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | | 20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | | 21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | | 22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | | 23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | 24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
30 | * POSSIBILITY OF SUCH DAMAGE. | | 30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ | | 31 | */ |
32 | | | 32 | |
33 | /* | | 33 | /* |
34 | * Linux compatibility module. Try to deal with various Linux system calls. | | 34 | * Linux compatibility module. Try to deal with various Linux system calls. |
35 | */ | | 35 | */ |
36 | | | 36 | |
37 | /* | | 37 | /* |
38 | * These functions have been moved to multiarch to allow | | 38 | * These functions have been moved to multiarch to allow |
39 | * selection of which machines include them to be | | 39 | * selection of which machines include them to be |
40 | * determined by the individual files.linux_<arch> files. | | 40 | * determined by the individual files.linux_<arch> files. |
41 | * | | 41 | * |
42 | * Function in multiarch: | | 42 | * Function in multiarch: |
43 | * linux_sys_break : linux_break.c | | 43 | * linux_sys_break : linux_break.c |
44 | * linux_sys_alarm : linux_misc_notalpha.c | | 44 | * linux_sys_alarm : linux_misc_notalpha.c |
45 | * linux_sys_getresgid : linux_misc_notalpha.c | | 45 | * linux_sys_getresgid : linux_misc_notalpha.c |
46 | * linux_sys_nice : linux_misc_notalpha.c | | 46 | * linux_sys_nice : linux_misc_notalpha.c |
47 | * linux_sys_readdir : linux_misc_notalpha.c | | 47 | * linux_sys_readdir : linux_misc_notalpha.c |
48 | * linux_sys_setresgid : linux_misc_notalpha.c | | 48 | * linux_sys_setresgid : linux_misc_notalpha.c |
49 | * linux_sys_time : linux_misc_notalpha.c | | 49 | * linux_sys_time : linux_misc_notalpha.c |
50 | * linux_sys_utime : linux_misc_notalpha.c | | 50 | * linux_sys_utime : linux_misc_notalpha.c |
51 | * linux_sys_waitpid : linux_misc_notalpha.c | | 51 | * linux_sys_waitpid : linux_misc_notalpha.c |
52 | * linux_sys_old_mmap : linux_oldmmap.c | | 52 | * linux_sys_old_mmap : linux_oldmmap.c |
53 | * linux_sys_oldolduname : linux_oldolduname.c | | 53 | * linux_sys_oldolduname : linux_oldolduname.c |
54 | * linux_sys_oldselect : linux_oldselect.c | | 54 | * linux_sys_oldselect : linux_oldselect.c |
55 | * linux_sys_olduname : linux_olduname.c | | 55 | * linux_sys_olduname : linux_olduname.c |
56 | * linux_sys_pipe : linux_pipe.c | | 56 | * linux_sys_pipe : linux_pipe.c |
57 | */ | | 57 | */ |
58 | | | 58 | |
59 | #include <sys/cdefs.h> | | 59 | #include <sys/cdefs.h> |
60 | __KERNEL_RCSID(0, "$NetBSD: linux_misc.c,v 1.217 2010/09/11 20:53:04 chs Exp $"); | | 60 | __KERNEL_RCSID(0, "$NetBSD: linux_misc.c,v 1.218 2010/11/02 18:18:07 chs Exp $"); |
61 | | | 61 | |
62 | #include <sys/param.h> | | 62 | #include <sys/param.h> |
63 | #include <sys/systm.h> | | 63 | #include <sys/systm.h> |
64 | #include <sys/namei.h> | | 64 | #include <sys/namei.h> |
65 | #include <sys/proc.h> | | 65 | #include <sys/proc.h> |
66 | #include <sys/dirent.h> | | 66 | #include <sys/dirent.h> |
67 | #include <sys/file.h> | | 67 | #include <sys/file.h> |
68 | #include <sys/stat.h> | | 68 | #include <sys/stat.h> |
69 | #include <sys/filedesc.h> | | 69 | #include <sys/filedesc.h> |
70 | #include <sys/ioctl.h> | | 70 | #include <sys/ioctl.h> |
71 | #include <sys/kernel.h> | | 71 | #include <sys/kernel.h> |
72 | #include <sys/malloc.h> | | 72 | #include <sys/malloc.h> |
73 | #include <sys/mbuf.h> | | 73 | #include <sys/mbuf.h> |
74 | #include <sys/mman.h> | | 74 | #include <sys/mman.h> |
75 | #include <sys/mount.h> | | 75 | #include <sys/mount.h> |
76 | #include <sys/prot.h> | | 76 | #include <sys/prot.h> |
77 | #include <sys/reboot.h> | | 77 | #include <sys/reboot.h> |
78 | #include <sys/resource.h> | | 78 | #include <sys/resource.h> |
79 | #include <sys/resourcevar.h> | | 79 | #include <sys/resourcevar.h> |
80 | #include <sys/select.h> | | 80 | #include <sys/select.h> |
81 | #include <sys/signal.h> | | 81 | #include <sys/signal.h> |
82 | #include <sys/signalvar.h> | | 82 | #include <sys/signalvar.h> |
83 | #include <sys/socket.h> | | 83 | #include <sys/socket.h> |
84 | #include <sys/time.h> | | 84 | #include <sys/time.h> |
85 | #include <sys/times.h> | | 85 | #include <sys/times.h> |
86 | #include <sys/vnode.h> | | 86 | #include <sys/vnode.h> |
87 | #include <sys/uio.h> | | 87 | #include <sys/uio.h> |
88 | #include <sys/wait.h> | | 88 | #include <sys/wait.h> |
89 | #include <sys/utsname.h> | | 89 | #include <sys/utsname.h> |
90 | #include <sys/unistd.h> | | 90 | #include <sys/unistd.h> |
91 | #include <sys/vfs_syscalls.h> | | 91 | #include <sys/vfs_syscalls.h> |
92 | #include <sys/swap.h> /* for SWAP_ON */ | | 92 | #include <sys/swap.h> /* for SWAP_ON */ |
93 | #include <sys/sysctl.h> /* for KERN_DOMAINNAME */ | | 93 | #include <sys/sysctl.h> /* for KERN_DOMAINNAME */ |
94 | #include <sys/kauth.h> | | 94 | #include <sys/kauth.h> |
95 | | | 95 | |
96 | #include <sys/ptrace.h> | | 96 | #include <sys/ptrace.h> |
97 | #include <machine/ptrace.h> | | 97 | #include <machine/ptrace.h> |
98 | | | 98 | |
99 | #include <sys/syscall.h> | | 99 | #include <sys/syscall.h> |
100 | #include <sys/syscallargs.h> | | 100 | #include <sys/syscallargs.h> |
101 | | | 101 | |
102 | #include <compat/sys/resource.h> | | 102 | #include <compat/sys/resource.h> |
103 | | | 103 | |
104 | #include <compat/linux/common/linux_machdep.h> | | 104 | #include <compat/linux/common/linux_machdep.h> |
105 | #include <compat/linux/common/linux_types.h> | | 105 | #include <compat/linux/common/linux_types.h> |
106 | #include <compat/linux/common/linux_signal.h> | | 106 | #include <compat/linux/common/linux_signal.h> |
107 | #include <compat/linux/common/linux_ipc.h> | | 107 | #include <compat/linux/common/linux_ipc.h> |
108 | #include <compat/linux/common/linux_sem.h> | | 108 | #include <compat/linux/common/linux_sem.h> |
109 | | | 109 | |
110 | #include <compat/linux/common/linux_fcntl.h> | | 110 | #include <compat/linux/common/linux_fcntl.h> |
111 | #include <compat/linux/common/linux_mmap.h> | | 111 | #include <compat/linux/common/linux_mmap.h> |
112 | #include <compat/linux/common/linux_dirent.h> | | 112 | #include <compat/linux/common/linux_dirent.h> |
113 | #include <compat/linux/common/linux_util.h> | | 113 | #include <compat/linux/common/linux_util.h> |
114 | #include <compat/linux/common/linux_misc.h> | | 114 | #include <compat/linux/common/linux_misc.h> |
115 | #ifndef COMPAT_LINUX32 | | 115 | #ifndef COMPAT_LINUX32 |
116 | #include <compat/linux/common/linux_statfs.h> | | 116 | #include <compat/linux/common/linux_statfs.h> |
117 | #include <compat/linux/common/linux_limit.h> | | 117 | #include <compat/linux/common/linux_limit.h> |
118 | #endif | | 118 | #endif |
119 | #include <compat/linux/common/linux_ptrace.h> | | 119 | #include <compat/linux/common/linux_ptrace.h> |
120 | #include <compat/linux/common/linux_reboot.h> | | 120 | #include <compat/linux/common/linux_reboot.h> |
121 | #include <compat/linux/common/linux_emuldata.h> | | 121 | #include <compat/linux/common/linux_emuldata.h> |
122 | | | 122 | |
123 | #include <compat/linux/linux_syscallargs.h> | | 123 | #include <compat/linux/linux_syscallargs.h> |
124 | | | 124 | |
125 | #ifndef COMPAT_LINUX32 | | 125 | #ifndef COMPAT_LINUX32 |
126 | const int linux_ptrace_request_map[] = { | | 126 | const int linux_ptrace_request_map[] = { |
127 | LINUX_PTRACE_TRACEME, PT_TRACE_ME, | | 127 | LINUX_PTRACE_TRACEME, PT_TRACE_ME, |
128 | LINUX_PTRACE_PEEKTEXT, PT_READ_I, | | 128 | LINUX_PTRACE_PEEKTEXT, PT_READ_I, |
129 | LINUX_PTRACE_PEEKDATA, PT_READ_D, | | 129 | LINUX_PTRACE_PEEKDATA, PT_READ_D, |
130 | LINUX_PTRACE_POKETEXT, PT_WRITE_I, | | 130 | LINUX_PTRACE_POKETEXT, PT_WRITE_I, |
131 | LINUX_PTRACE_POKEDATA, PT_WRITE_D, | | 131 | LINUX_PTRACE_POKEDATA, PT_WRITE_D, |
132 | LINUX_PTRACE_CONT, PT_CONTINUE, | | 132 | LINUX_PTRACE_CONT, PT_CONTINUE, |
133 | LINUX_PTRACE_KILL, PT_KILL, | | 133 | LINUX_PTRACE_KILL, PT_KILL, |
134 | LINUX_PTRACE_ATTACH, PT_ATTACH, | | 134 | LINUX_PTRACE_ATTACH, PT_ATTACH, |
135 | LINUX_PTRACE_DETACH, PT_DETACH, | | 135 | LINUX_PTRACE_DETACH, PT_DETACH, |
136 | # ifdef PT_STEP | | 136 | # ifdef PT_STEP |
137 | LINUX_PTRACE_SINGLESTEP, PT_STEP, | | 137 | LINUX_PTRACE_SINGLESTEP, PT_STEP, |
138 | # endif | | 138 | # endif |
139 | LINUX_PTRACE_SYSCALL, PT_SYSCALL, | | 139 | LINUX_PTRACE_SYSCALL, PT_SYSCALL, |
140 | -1 | | 140 | -1 |
141 | }; | | 141 | }; |
142 | | | 142 | |
143 | const struct linux_mnttypes linux_fstypes[] = { | | 143 | const struct linux_mnttypes linux_fstypes[] = { |
144 | { MOUNT_FFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 144 | { MOUNT_FFS, LINUX_DEFAULT_SUPER_MAGIC }, |
145 | { MOUNT_NFS, LINUX_NFS_SUPER_MAGIC }, | | 145 | { MOUNT_NFS, LINUX_NFS_SUPER_MAGIC }, |
146 | { MOUNT_MFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 146 | { MOUNT_MFS, LINUX_DEFAULT_SUPER_MAGIC }, |
147 | { MOUNT_MSDOS, LINUX_MSDOS_SUPER_MAGIC }, | | 147 | { MOUNT_MSDOS, LINUX_MSDOS_SUPER_MAGIC }, |
148 | { MOUNT_LFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 148 | { MOUNT_LFS, LINUX_DEFAULT_SUPER_MAGIC }, |
149 | { MOUNT_FDESC, LINUX_DEFAULT_SUPER_MAGIC }, | | 149 | { MOUNT_FDESC, LINUX_DEFAULT_SUPER_MAGIC }, |
150 | { MOUNT_NULL, LINUX_DEFAULT_SUPER_MAGIC }, | | 150 | { MOUNT_NULL, LINUX_DEFAULT_SUPER_MAGIC }, |
151 | { MOUNT_OVERLAY, LINUX_DEFAULT_SUPER_MAGIC }, | | 151 | { MOUNT_OVERLAY, LINUX_DEFAULT_SUPER_MAGIC }, |
152 | { MOUNT_UMAP, LINUX_DEFAULT_SUPER_MAGIC }, | | 152 | { MOUNT_UMAP, LINUX_DEFAULT_SUPER_MAGIC }, |
153 | { MOUNT_KERNFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 153 | { MOUNT_KERNFS, LINUX_DEFAULT_SUPER_MAGIC }, |
154 | { MOUNT_PROCFS, LINUX_PROC_SUPER_MAGIC }, | | 154 | { MOUNT_PROCFS, LINUX_PROC_SUPER_MAGIC }, |
155 | { MOUNT_AFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 155 | { MOUNT_AFS, LINUX_DEFAULT_SUPER_MAGIC }, |
156 | { MOUNT_CD9660, LINUX_ISOFS_SUPER_MAGIC }, | | 156 | { MOUNT_CD9660, LINUX_ISOFS_SUPER_MAGIC }, |
157 | { MOUNT_UNION, LINUX_DEFAULT_SUPER_MAGIC }, | | 157 | { MOUNT_UNION, LINUX_DEFAULT_SUPER_MAGIC }, |
158 | { MOUNT_ADOSFS, LINUX_ADFS_SUPER_MAGIC }, | | 158 | { MOUNT_ADOSFS, LINUX_ADFS_SUPER_MAGIC }, |
159 | { MOUNT_EXT2FS, LINUX_EXT2_SUPER_MAGIC }, | | 159 | { MOUNT_EXT2FS, LINUX_EXT2_SUPER_MAGIC }, |
160 | { MOUNT_CFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 160 | { MOUNT_CFS, LINUX_DEFAULT_SUPER_MAGIC }, |
161 | { MOUNT_CODA, LINUX_CODA_SUPER_MAGIC }, | | 161 | { MOUNT_CODA, LINUX_CODA_SUPER_MAGIC }, |
162 | { MOUNT_FILECORE, LINUX_DEFAULT_SUPER_MAGIC }, | | 162 | { MOUNT_FILECORE, LINUX_DEFAULT_SUPER_MAGIC }, |
163 | { MOUNT_NTFS, LINUX_DEFAULT_SUPER_MAGIC }, | | 163 | { MOUNT_NTFS, LINUX_DEFAULT_SUPER_MAGIC }, |
164 | { MOUNT_SMBFS, LINUX_SMB_SUPER_MAGIC }, | | 164 | { MOUNT_SMBFS, LINUX_SMB_SUPER_MAGIC }, |
165 | { MOUNT_PTYFS, LINUX_DEVPTS_SUPER_MAGIC }, | | 165 | { MOUNT_PTYFS, LINUX_DEVPTS_SUPER_MAGIC }, |
166 | { MOUNT_TMPFS, LINUX_TMPFS_SUPER_MAGIC } | | 166 | { MOUNT_TMPFS, LINUX_TMPFS_SUPER_MAGIC } |
167 | }; | | 167 | }; |
168 | const int linux_fstypes_cnt = sizeof(linux_fstypes) / sizeof(linux_fstypes[0]); | | 168 | const int linux_fstypes_cnt = sizeof(linux_fstypes) / sizeof(linux_fstypes[0]); |
169 | | | 169 | |
170 | # ifdef DEBUG_LINUX | | 170 | # ifdef DEBUG_LINUX |
171 | #define DPRINTF(a) uprintf a | | 171 | #define DPRINTF(a) uprintf a |
172 | # else | | 172 | # else |
173 | #define DPRINTF(a) | | 173 | #define DPRINTF(a) |
174 | # endif | | 174 | # endif |
175 | | | 175 | |
176 | /* Local linux_misc.c functions: */ | | 176 | /* Local linux_misc.c functions: */ |
177 | static void linux_to_bsd_mmap_args(struct sys_mmap_args *, | | 177 | static void linux_to_bsd_mmap_args(struct sys_mmap_args *, |
178 | const struct linux_sys_mmap_args *); | | 178 | const struct linux_sys_mmap_args *); |
179 | static int linux_mmap(struct lwp *, const struct linux_sys_mmap_args *, | | 179 | static int linux_mmap(struct lwp *, const struct linux_sys_mmap_args *, |
180 | register_t *, off_t); | | 180 | register_t *, off_t); |
181 | | | 181 | |
182 | | | 182 | |
183 | /* | | 183 | /* |
184 | * The information on a terminated (or stopped) process needs | | 184 | * The information on a terminated (or stopped) process needs |
185 | * to be converted in order for Linux binaries to get a valid signal | | 185 | * to be converted in order for Linux binaries to get a valid signal |
186 | * number out of it. | | 186 | * number out of it. |
187 | */ | | 187 | */ |
188 | int | | 188 | int |
189 | bsd_to_linux_wstat(int st) | | 189 | bsd_to_linux_wstat(int st) |
190 | { | | 190 | { |
191 | | | 191 | |
192 | int sig; | | 192 | int sig; |
193 | | | 193 | |
194 | if (WIFSIGNALED(st)) { | | 194 | if (WIFSIGNALED(st)) { |
195 | sig = WTERMSIG(st); | | 195 | sig = WTERMSIG(st); |
196 | if (sig >= 0 && sig < NSIG) | | 196 | if (sig >= 0 && sig < NSIG) |
197 | st= (st & ~0177) | native_to_linux_signo[sig]; | | 197 | st= (st & ~0177) | native_to_linux_signo[sig]; |
198 | } else if (WIFSTOPPED(st)) { | | 198 | } else if (WIFSTOPPED(st)) { |
199 | sig = WSTOPSIG(st); | | 199 | sig = WSTOPSIG(st); |
200 | if (sig >= 0 && sig < NSIG) | | 200 | if (sig >= 0 && sig < NSIG) |
201 | st = (st & ~0xff00) | | | 201 | st = (st & ~0xff00) | |
202 | (native_to_linux_signo[sig] << 8); | | 202 | (native_to_linux_signo[sig] << 8); |
203 | } | | 203 | } |
204 | return st; | | 204 | return st; |
205 | } | | 205 | } |
206 | | | 206 | |
207 | /* | | 207 | /* |
208 | * wait4(2). Passed on to the NetBSD call, surrounded by code to | | 208 | * wait4(2). Passed on to the NetBSD call, surrounded by code to |
209 | * reserve some space for a NetBSD-style wait status, and converting | | 209 | * reserve some space for a NetBSD-style wait status, and converting |
210 | * it to what Linux wants. | | 210 | * it to what Linux wants. |
211 | */ | | 211 | */ |
212 | int | | 212 | int |
213 | linux_sys_wait4(struct lwp *l, const struct linux_sys_wait4_args *uap, register_t *retval) | | 213 | linux_sys_wait4(struct lwp *l, const struct linux_sys_wait4_args *uap, register_t *retval) |
214 | { | | 214 | { |
215 | /* { | | 215 | /* { |
216 | syscallarg(int) pid; | | 216 | syscallarg(int) pid; |
217 | syscallarg(int *) status; | | 217 | syscallarg(int *) status; |
218 | syscallarg(int) options; | | 218 | syscallarg(int) options; |
219 | syscallarg(struct rusage50 *) rusage; | | 219 | syscallarg(struct rusage50 *) rusage; |
220 | } */ | | 220 | } */ |
221 | int error, status, options, linux_options, pid = SCARG(uap, pid); | | 221 | int error, status, options, linux_options, pid = SCARG(uap, pid); |
222 | struct rusage50 ru50; | | 222 | struct rusage50 ru50; |
223 | struct rusage ru; | | 223 | struct rusage ru; |
224 | proc_t *p; | | 224 | proc_t *p; |
225 | | | 225 | |
226 | linux_options = SCARG(uap, options); | | 226 | linux_options = SCARG(uap, options); |
227 | options = WOPTSCHECKED; | | 227 | options = WOPTSCHECKED; |
228 | if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) | | 228 | if (linux_options & ~(LINUX_WAIT4_KNOWNFLAGS)) |
229 | return (EINVAL); | | 229 | return (EINVAL); |
230 | | | 230 | |
231 | if (linux_options & LINUX_WAIT4_WNOHANG) | | 231 | if (linux_options & LINUX_WAIT4_WNOHANG) |
232 | options |= WNOHANG; | | 232 | options |= WNOHANG; |
233 | if (linux_options & LINUX_WAIT4_WUNTRACED) | | 233 | if (linux_options & LINUX_WAIT4_WUNTRACED) |
234 | options |= WUNTRACED; | | 234 | options |= WUNTRACED; |
235 | if (linux_options & LINUX_WAIT4_WALL) | | 235 | if (linux_options & LINUX_WAIT4_WALL) |
236 | options |= WALLSIG; | | 236 | options |= WALLSIG; |
237 | if (linux_options & LINUX_WAIT4_WCLONE) | | 237 | if (linux_options & LINUX_WAIT4_WCLONE) |
238 | options |= WALTSIG; | | 238 | options |= WALTSIG; |
239 | # ifdef DIAGNOSTIC | | 239 | # ifdef DIAGNOSTIC |
240 | if (linux_options & LINUX_WAIT4_WNOTHREAD) | | 240 | if (linux_options & LINUX_WAIT4_WNOTHREAD) |
241 | printf("WARNING: %s: linux process %d.%d called " | | 241 | printf("WARNING: %s: linux process %d.%d called " |
242 | "waitpid with __WNOTHREAD set!", | | 242 | "waitpid with __WNOTHREAD set!", |
243 | __FILE__, l->l_proc->p_pid, l->l_lid); | | 243 | __FILE__, l->l_proc->p_pid, l->l_lid); |
244 | | | 244 | |
245 | # endif | | 245 | # endif |
246 | | | 246 | |
247 | error = do_sys_wait(&pid, &status, options, | | 247 | error = do_sys_wait(&pid, &status, options, |
248 | SCARG(uap, rusage) != NULL ? &ru : NULL); | | 248 | SCARG(uap, rusage) != NULL ? &ru : NULL); |
249 | | | 249 | |
250 | retval[0] = pid; | | 250 | retval[0] = pid; |
251 | if (pid == 0) | | 251 | if (pid == 0) |
252 | return error; | | 252 | return error; |
253 | | | 253 | |
254 | p = curproc; | | 254 | p = curproc; |
255 | mutex_enter(p->p_lock); | | 255 | mutex_enter(p->p_lock); |
256 | sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ | | 256 | sigdelset(&p->p_sigpend.sp_set, SIGCHLD); /* XXXAD ksiginfo leak */ |
257 | mutex_exit(p->p_lock); | | 257 | mutex_exit(p->p_lock); |
258 | | | 258 | |
259 | if (SCARG(uap, rusage) != NULL) { | | 259 | if (SCARG(uap, rusage) != NULL) { |
260 | rusage_to_rusage50(&ru, &ru50); | | 260 | rusage_to_rusage50(&ru, &ru50); |
261 | error = copyout(&ru, SCARG(uap, rusage), sizeof(ru)); | | 261 | error = copyout(&ru, SCARG(uap, rusage), sizeof(ru)); |
262 | } | | 262 | } |
263 | | | 263 | |
264 | if (error == 0 && SCARG(uap, status) != NULL) { | | 264 | if (error == 0 && SCARG(uap, status) != NULL) { |
265 | status = bsd_to_linux_wstat(status); | | 265 | status = bsd_to_linux_wstat(status); |
266 | error = copyout(&status, SCARG(uap, status), sizeof status); | | 266 | error = copyout(&status, SCARG(uap, status), sizeof status); |
267 | } | | 267 | } |
268 | | | 268 | |
269 | return error; | | 269 | return error; |
270 | } | | 270 | } |
271 | | | 271 | |
272 | /* | | 272 | /* |
273 | * Linux brk(2). Like native, but always return the new break value. | | 273 | * Linux brk(2). Like native, but always return the new break value. |
274 | */ | | 274 | */ |
275 | int | | 275 | int |
276 | linux_sys_brk(struct lwp *l, const struct linux_sys_brk_args *uap, register_t *retval) | | 276 | linux_sys_brk(struct lwp *l, const struct linux_sys_brk_args *uap, register_t *retval) |
277 | { | | 277 | { |
278 | /* { | | 278 | /* { |
279 | syscallarg(char *) nsize; | | 279 | syscallarg(char *) nsize; |
280 | } */ | | 280 | } */ |
281 | struct proc *p = l->l_proc; | | 281 | struct proc *p = l->l_proc; |
282 | struct vmspace *vm = p->p_vmspace; | | 282 | struct vmspace *vm = p->p_vmspace; |
283 | struct sys_obreak_args oba; | | 283 | struct sys_obreak_args oba; |
284 | | | 284 | |
285 | SCARG(&oba, nsize) = SCARG(uap, nsize); | | 285 | SCARG(&oba, nsize) = SCARG(uap, nsize); |
286 | | | 286 | |
287 | (void) sys_obreak(l, &oba, retval); | | 287 | (void) sys_obreak(l, &oba, retval); |
288 | retval[0] = (register_t)((char *)vm->vm_daddr + ptoa(vm->vm_dsize)); | | 288 | retval[0] = (register_t)((char *)vm->vm_daddr + ptoa(vm->vm_dsize)); |
289 | return 0; | | 289 | return 0; |
290 | } | | 290 | } |
291 | | | 291 | |
292 | /* | | 292 | /* |
293 | * Implement the fs stat functions. Straightforward. | | 293 | * Implement the fs stat functions. Straightforward. |
294 | */ | | 294 | */ |
295 | int | | 295 | int |
296 | linux_sys_statfs(struct lwp *l, const struct linux_sys_statfs_args *uap, register_t *retval) | | 296 | linux_sys_statfs(struct lwp *l, const struct linux_sys_statfs_args *uap, register_t *retval) |
297 | { | | 297 | { |
298 | /* { | | 298 | /* { |
299 | syscallarg(const char *) path; | | 299 | syscallarg(const char *) path; |
300 | syscallarg(struct linux_statfs *) sp; | | 300 | syscallarg(struct linux_statfs *) sp; |
301 | } */ | | 301 | } */ |
302 | struct statvfs *sb; | | 302 | struct statvfs *sb; |
303 | struct linux_statfs ltmp; | | 303 | struct linux_statfs ltmp; |
304 | int error; | | 304 | int error; |
305 | | | 305 | |
306 | sb = STATVFSBUF_GET(); | | 306 | sb = STATVFSBUF_GET(); |
307 | error = do_sys_pstatvfs(l, SCARG(uap, path), ST_WAIT, sb); | | 307 | error = do_sys_pstatvfs(l, SCARG(uap, path), ST_WAIT, sb); |
308 | if (error == 0) { | | 308 | if (error == 0) { |
309 | bsd_to_linux_statfs(sb, <mp); | | 309 | bsd_to_linux_statfs(sb, <mp); |
310 | error = copyout(<mp, SCARG(uap, sp), sizeof ltmp); | | 310 | error = copyout(<mp, SCARG(uap, sp), sizeof ltmp); |
311 | } | | 311 | } |
312 | STATVFSBUF_PUT(sb); | | 312 | STATVFSBUF_PUT(sb); |
313 | | | 313 | |
314 | return error; | | 314 | return error; |
315 | } | | 315 | } |
316 | | | 316 | |
317 | int | | 317 | int |
318 | linux_sys_fstatfs(struct lwp *l, const struct linux_sys_fstatfs_args *uap, register_t *retval) | | 318 | linux_sys_fstatfs(struct lwp *l, const struct linux_sys_fstatfs_args *uap, register_t *retval) |
319 | { | | 319 | { |
320 | /* { | | 320 | /* { |
321 | syscallarg(int) fd; | | 321 | syscallarg(int) fd; |
322 | syscallarg(struct linux_statfs *) sp; | | 322 | syscallarg(struct linux_statfs *) sp; |
323 | } */ | | 323 | } */ |
324 | struct statvfs *sb; | | 324 | struct statvfs *sb; |
325 | struct linux_statfs ltmp; | | 325 | struct linux_statfs ltmp; |
326 | int error; | | 326 | int error; |
327 | | | 327 | |
328 | sb = STATVFSBUF_GET(); | | 328 | sb = STATVFSBUF_GET(); |
329 | error = do_sys_fstatvfs(l, SCARG(uap, fd), ST_WAIT, sb); | | 329 | error = do_sys_fstatvfs(l, SCARG(uap, fd), ST_WAIT, sb); |
330 | if (error == 0) { | | 330 | if (error == 0) { |
331 | bsd_to_linux_statfs(sb, <mp); | | 331 | bsd_to_linux_statfs(sb, <mp); |
332 | error = copyout(<mp, SCARG(uap, sp), sizeof ltmp); | | 332 | error = copyout(<mp, SCARG(uap, sp), sizeof ltmp); |
333 | } | | 333 | } |
334 | STATVFSBUF_PUT(sb); | | 334 | STATVFSBUF_PUT(sb); |
335 | | | 335 | |
336 | return error; | | 336 | return error; |
337 | } | | 337 | } |
338 | | | 338 | |
339 | /* | | 339 | /* |
340 | * uname(). Just copy the info from the various strings stored in the | | 340 | * uname(). Just copy the info from the various strings stored in the |
341 | * kernel, and put it in the Linux utsname structure. That structure | | 341 | * kernel, and put it in the Linux utsname structure. That structure |
342 | * is almost the same as the NetBSD one, only it has fields 65 characters | | 342 | * is almost the same as the NetBSD one, only it has fields 65 characters |
343 | * long, and an extra domainname field. | | 343 | * long, and an extra domainname field. |
344 | */ | | 344 | */ |
345 | int | | 345 | int |
346 | linux_sys_uname(struct lwp *l, const struct linux_sys_uname_args *uap, register_t *retval) | | 346 | linux_sys_uname(struct lwp *l, const struct linux_sys_uname_args *uap, register_t *retval) |
347 | { | | 347 | { |
348 | /* { | | 348 | /* { |
349 | syscallarg(struct linux_utsname *) up; | | 349 | syscallarg(struct linux_utsname *) up; |
350 | } */ | | 350 | } */ |
351 | struct linux_utsname luts; | | 351 | struct linux_utsname luts; |
352 | | | 352 | |
353 | strlcpy(luts.l_sysname, linux_sysname, sizeof(luts.l_sysname)); | | 353 | strlcpy(luts.l_sysname, linux_sysname, sizeof(luts.l_sysname)); |
354 | strlcpy(luts.l_nodename, hostname, sizeof(luts.l_nodename)); | | 354 | strlcpy(luts.l_nodename, hostname, sizeof(luts.l_nodename)); |
355 | strlcpy(luts.l_release, linux_release, sizeof(luts.l_release)); | | 355 | strlcpy(luts.l_release, linux_release, sizeof(luts.l_release)); |
356 | strlcpy(luts.l_version, linux_version, sizeof(luts.l_version)); | | 356 | strlcpy(luts.l_version, linux_version, sizeof(luts.l_version)); |
357 | strlcpy(luts.l_machine, LINUX_UNAME_ARCH, sizeof(luts.l_machine)); | | 357 | strlcpy(luts.l_machine, LINUX_UNAME_ARCH, sizeof(luts.l_machine)); |
358 | strlcpy(luts.l_domainname, domainname, sizeof(luts.l_domainname)); | | 358 | strlcpy(luts.l_domainname, domainname, sizeof(luts.l_domainname)); |
359 | | | 359 | |
360 | return copyout(&luts, SCARG(uap, up), sizeof(luts)); | | 360 | return copyout(&luts, SCARG(uap, up), sizeof(luts)); |
361 | } | | 361 | } |
362 | | | 362 | |
363 | /* Used directly on: alpha, mips, ppc, sparc, sparc64 */ | | 363 | /* Used directly on: alpha, mips, ppc, sparc, sparc64 */ |
364 | /* Used indirectly on: arm, i386, m68k */ | | 364 | /* Used indirectly on: arm, i386, m68k */ |
365 | | | 365 | |
366 | /* | | 366 | /* |
367 | * New type Linux mmap call. | | 367 | * New type Linux mmap call. |
368 | * Only called directly on machines with >= 6 free regs. | | 368 | * Only called directly on machines with >= 6 free regs. |
369 | */ | | 369 | */ |
370 | int | | 370 | int |
371 | linux_sys_mmap(struct lwp *l, const struct linux_sys_mmap_args *uap, register_t *retval) | | 371 | linux_sys_mmap(struct lwp *l, const struct linux_sys_mmap_args *uap, register_t *retval) |
372 | { | | 372 | { |
373 | /* { | | 373 | /* { |
374 | syscallarg(unsigned long) addr; | | 374 | syscallarg(unsigned long) addr; |
375 | syscallarg(size_t) len; | | 375 | syscallarg(size_t) len; |
376 | syscallarg(int) prot; | | 376 | syscallarg(int) prot; |
377 | syscallarg(int) flags; | | 377 | syscallarg(int) flags; |
378 | syscallarg(int) fd; | | 378 | syscallarg(int) fd; |
379 | syscallarg(linux_off_t) offset; | | 379 | syscallarg(linux_off_t) offset; |
380 | } */ | | 380 | } */ |
381 | | | 381 | |
382 | if (SCARG(uap, offset) & PAGE_MASK) | | 382 | if (SCARG(uap, offset) & PAGE_MASK) |
383 | return EINVAL; | | 383 | return EINVAL; |
384 | | | 384 | |
385 | return linux_mmap(l, uap, retval, SCARG(uap, offset)); | | 385 | return linux_mmap(l, uap, retval, SCARG(uap, offset)); |
386 | } | | 386 | } |
387 | | | 387 | |
388 | /* | | 388 | /* |
389 | * Guts of most architectures' mmap64() implementations. This shares | | 389 | * Guts of most architectures' mmap64() implementations. This shares |
390 | * its list of arguments with linux_sys_mmap(). | | 390 | * its list of arguments with linux_sys_mmap(). |
391 | * | | 391 | * |
392 | * The difference in linux_sys_mmap2() is that "offset" is actually | | 392 | * The difference in linux_sys_mmap2() is that "offset" is actually |
393 | * (offset / pagesize), not an absolute byte count. This translation | | 393 | * (offset / pagesize), not an absolute byte count. This translation |
394 | * to pagesize offsets is done inside glibc between the mmap64() call | | 394 | * to pagesize offsets is done inside glibc between the mmap64() call |
395 | * point, and the actual syscall. | | 395 | * point, and the actual syscall. |
396 | */ | | 396 | */ |
397 | int | | 397 | int |
398 | linux_sys_mmap2(struct lwp *l, const struct linux_sys_mmap2_args *uap, register_t *retval) | | 398 | linux_sys_mmap2(struct lwp *l, const struct linux_sys_mmap2_args *uap, register_t *retval) |
399 | { | | 399 | { |
400 | /* { | | 400 | /* { |
401 | syscallarg(unsigned long) addr; | | 401 | syscallarg(unsigned long) addr; |
402 | syscallarg(size_t) len; | | 402 | syscallarg(size_t) len; |
403 | syscallarg(int) prot; | | 403 | syscallarg(int) prot; |
404 | syscallarg(int) flags; | | 404 | syscallarg(int) flags; |
405 | syscallarg(int) fd; | | 405 | syscallarg(int) fd; |
406 | syscallarg(linux_off_t) offset; | | 406 | syscallarg(linux_off_t) offset; |
407 | } */ | | 407 | } */ |
408 | | | 408 | |
409 | return linux_mmap(l, uap, retval, | | 409 | return linux_mmap(l, uap, retval, |
410 | ((off_t)SCARG(uap, offset)) << PAGE_SHIFT); | | 410 | ((off_t)SCARG(uap, offset)) << PAGE_SHIFT); |
411 | } | | 411 | } |
412 | | | 412 | |
413 | /* | | 413 | /* |
414 | * Massage arguments and call system mmap(2). | | 414 | * Massage arguments and call system mmap(2). |
415 | */ | | 415 | */ |
416 | static int | | 416 | static int |
417 | linux_mmap(struct lwp *l, const struct linux_sys_mmap_args *uap, register_t *retval, off_t offset) | | 417 | linux_mmap(struct lwp *l, const struct linux_sys_mmap_args *uap, register_t *retval, off_t offset) |
418 | { | | 418 | { |
419 | struct sys_mmap_args cma; | | 419 | struct sys_mmap_args cma; |
420 | int error; | | 420 | int error; |
421 | size_t mmoff=0; | | 421 | size_t mmoff=0; |
422 | | | 422 | |
423 | linux_to_bsd_mmap_args(&cma, uap); | | 423 | linux_to_bsd_mmap_args(&cma, uap); |
424 | SCARG(&cma, pos) = offset; | | 424 | SCARG(&cma, pos) = offset; |
425 | | | 425 | |
426 | if (SCARG(uap, flags) & LINUX_MAP_GROWSDOWN) { | | 426 | if (SCARG(uap, flags) & LINUX_MAP_GROWSDOWN) { |
427 | /* | | 427 | /* |
428 | * Request for stack-like memory segment. On linux, this | | 428 | * Request for stack-like memory segment. On linux, this |
429 | * works by mmap()ping (small) segment, which is automatically | | 429 | * works by mmap()ping (small) segment, which is automatically |
430 | * extended when page fault happens below the currently | | 430 | * extended when page fault happens below the currently |
431 | * allocated area. We emulate this by allocating (typically | | 431 | * allocated area. We emulate this by allocating (typically |
432 | * bigger) segment sized at current stack size limit, and | | 432 | * bigger) segment sized at current stack size limit, and |
433 | * offsetting the requested and returned address accordingly. | | 433 | * offsetting the requested and returned address accordingly. |
434 | * Since physical pages are only allocated on-demand, this | | 434 | * Since physical pages are only allocated on-demand, this |
435 | * is effectively identical. | | 435 | * is effectively identical. |
436 | */ | | 436 | */ |
437 | rlim_t ssl = l->l_proc->p_rlimit[RLIMIT_STACK].rlim_cur; | | 437 | rlim_t ssl = l->l_proc->p_rlimit[RLIMIT_STACK].rlim_cur; |
438 | | | 438 | |
439 | if (SCARG(&cma, len) < ssl) { | | 439 | if (SCARG(&cma, len) < ssl) { |
440 | /* Compute the address offset */ | | 440 | /* Compute the address offset */ |
441 | mmoff = round_page(ssl) - SCARG(uap, len); | | 441 | mmoff = round_page(ssl) - SCARG(uap, len); |
442 | | | 442 | |
443 | if (SCARG(&cma, addr)) | | 443 | if (SCARG(&cma, addr)) |
444 | SCARG(&cma, addr) = (char *)SCARG(&cma, addr) - mmoff; | | 444 | SCARG(&cma, addr) = (char *)SCARG(&cma, addr) - mmoff; |
445 | | | 445 | |
446 | SCARG(&cma, len) = (size_t) ssl; | | 446 | SCARG(&cma, len) = (size_t) ssl; |
447 | } | | 447 | } |
448 | } | | 448 | } |
449 | | | 449 | |
450 | error = sys_mmap(l, &cma, retval); | | 450 | error = sys_mmap(l, &cma, retval); |
451 | if (error) | | 451 | if (error) |
452 | return (error); | | 452 | return (error); |
453 | | | 453 | |
454 | /* Shift the returned address for stack-like segment if necessary */ | | 454 | /* Shift the returned address for stack-like segment if necessary */ |
455 | retval[0] += mmoff; | | 455 | retval[0] += mmoff; |
456 | | | 456 | |
457 | return (0); | | 457 | return (0); |
458 | } | | 458 | } |
459 | | | 459 | |
460 | static void | | 460 | static void |
461 | linux_to_bsd_mmap_args(struct sys_mmap_args *cma, const struct linux_sys_mmap_args *uap) | | 461 | linux_to_bsd_mmap_args(struct sys_mmap_args *cma, const struct linux_sys_mmap_args *uap) |
462 | { | | 462 | { |
463 | int flags = MAP_TRYFIXED, fl = SCARG(uap, flags); | | 463 | int flags = MAP_TRYFIXED, fl = SCARG(uap, flags); |
464 | | | 464 | |
465 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_SHARED, MAP_SHARED); | | 465 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_SHARED, MAP_SHARED); |
466 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_PRIVATE, MAP_PRIVATE); | | 466 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_PRIVATE, MAP_PRIVATE); |
467 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_FIXED, MAP_FIXED); | | 467 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_FIXED, MAP_FIXED); |
468 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_ANON, MAP_ANON); | | 468 | flags |= cvtto_bsd_mask(fl, LINUX_MAP_ANON, MAP_ANON); |
469 | /* XXX XAX ERH: Any other flags here? There are more defined... */ | | 469 | /* XXX XAX ERH: Any other flags here? There are more defined... */ |
470 | | | 470 | |
471 | SCARG(cma, addr) = (void *)SCARG(uap, addr); | | 471 | SCARG(cma, addr) = (void *)SCARG(uap, addr); |
472 | SCARG(cma, len) = SCARG(uap, len); | | 472 | SCARG(cma, len) = SCARG(uap, len); |
473 | SCARG(cma, prot) = SCARG(uap, prot); | | 473 | SCARG(cma, prot) = SCARG(uap, prot); |
474 | if (SCARG(cma, prot) & VM_PROT_WRITE) /* XXX */ | | 474 | if (SCARG(cma, prot) & VM_PROT_WRITE) /* XXX */ |
475 | SCARG(cma, prot) |= VM_PROT_READ; | | 475 | SCARG(cma, prot) |= VM_PROT_READ; |
476 | SCARG(cma, flags) = flags; | | 476 | SCARG(cma, flags) = flags; |
477 | SCARG(cma, fd) = flags & MAP_ANON ? -1 : SCARG(uap, fd); | | 477 | SCARG(cma, fd) = flags & MAP_ANON ? -1 : SCARG(uap, fd); |
478 | SCARG(cma, PAD) = 0; | | 478 | SCARG(cma, PAD) = 0; |
479 | } | | 479 | } |
480 | | | 480 | |
481 | #define LINUX_MREMAP_MAYMOVE 1 | | 481 | #define LINUX_MREMAP_MAYMOVE 1 |
482 | #define LINUX_MREMAP_FIXED 2 | | 482 | #define LINUX_MREMAP_FIXED 2 |
483 | | | 483 | |
484 | int | | 484 | int |
485 | linux_sys_mremap(struct lwp *l, const struct linux_sys_mremap_args *uap, register_t *retval) | | 485 | linux_sys_mremap(struct lwp *l, const struct linux_sys_mremap_args *uap, register_t *retval) |
486 | { | | 486 | { |
487 | /* { | | 487 | /* { |
488 | syscallarg(void *) old_address; | | 488 | syscallarg(void *) old_address; |
489 | syscallarg(size_t) old_size; | | 489 | syscallarg(size_t) old_size; |
490 | syscallarg(size_t) new_size; | | 490 | syscallarg(size_t) new_size; |
491 | syscallarg(u_long) flags; | | 491 | syscallarg(u_long) flags; |
492 | } */ | | 492 | } */ |
493 | | | 493 | |
494 | struct proc *p; | | 494 | struct proc *p; |
495 | struct vm_map *map; | | 495 | struct vm_map *map; |
496 | vaddr_t oldva; | | 496 | vaddr_t oldva; |
497 | vaddr_t newva; | | 497 | vaddr_t newva; |
498 | size_t oldsize; | | 498 | size_t oldsize; |
499 | size_t newsize; | | 499 | size_t newsize; |
500 | int flags; | | 500 | int flags; |
501 | int uvmflags; | | 501 | int uvmflags; |
502 | int error; | | 502 | int error; |
503 | | | 503 | |
504 | flags = SCARG(uap, flags); | | 504 | flags = SCARG(uap, flags); |
505 | oldva = (vaddr_t)SCARG(uap, old_address); | | 505 | oldva = (vaddr_t)SCARG(uap, old_address); |
506 | oldsize = round_page(SCARG(uap, old_size)); | | 506 | oldsize = round_page(SCARG(uap, old_size)); |
507 | newsize = round_page(SCARG(uap, new_size)); | | 507 | newsize = round_page(SCARG(uap, new_size)); |
508 | if ((flags & ~(LINUX_MREMAP_FIXED|LINUX_MREMAP_MAYMOVE)) != 0) { | | 508 | if ((flags & ~(LINUX_MREMAP_FIXED|LINUX_MREMAP_MAYMOVE)) != 0) { |
509 | error = EINVAL; | | 509 | error = EINVAL; |
510 | goto done; | | 510 | goto done; |
511 | } | | 511 | } |
512 | if ((flags & LINUX_MREMAP_FIXED) != 0) { | | 512 | if ((flags & LINUX_MREMAP_FIXED) != 0) { |
513 | if ((flags & LINUX_MREMAP_MAYMOVE) == 0) { | | 513 | if ((flags & LINUX_MREMAP_MAYMOVE) == 0) { |
514 | error = EINVAL; | | 514 | error = EINVAL; |
515 | goto done; | | 515 | goto done; |
516 | } | | 516 | } |
517 | #if 0 /* notyet */ | | 517 | #if 0 /* notyet */ |
518 | newva = SCARG(uap, new_address); | | 518 | newva = SCARG(uap, new_address); |
519 | uvmflags = MAP_FIXED; | | 519 | uvmflags = MAP_FIXED; |
520 | #else /* notyet */ | | 520 | #else /* notyet */ |
521 | error = EOPNOTSUPP; | | 521 | error = EOPNOTSUPP; |
522 | goto done; | | 522 | goto done; |
523 | #endif /* notyet */ | | 523 | #endif /* notyet */ |
524 | } else if ((flags & LINUX_MREMAP_MAYMOVE) != 0) { | | 524 | } else if ((flags & LINUX_MREMAP_MAYMOVE) != 0) { |
525 | uvmflags = 0; | | 525 | uvmflags = 0; |
526 | } else { | | 526 | } else { |
527 | newva = oldva; | | 527 | newva = oldva; |
528 | uvmflags = MAP_FIXED; | | 528 | uvmflags = MAP_FIXED; |
529 | } | | 529 | } |
530 | p = l->l_proc; | | 530 | p = l->l_proc; |
531 | map = &p->p_vmspace->vm_map; | | 531 | map = &p->p_vmspace->vm_map; |
532 | error = uvm_mremap(map, oldva, oldsize, map, &newva, newsize, p, | | 532 | error = uvm_mremap(map, oldva, oldsize, map, &newva, newsize, p, |
533 | uvmflags); | | 533 | uvmflags); |
534 | | | 534 | |
535 | done: | | 535 | done: |
536 | *retval = (error != 0) ? 0 : (register_t)newva; | | 536 | *retval = (error != 0) ? 0 : (register_t)newva; |
537 | return error; | | 537 | return error; |
538 | } | | 538 | } |
539 | | | 539 | |
540 | int | | 540 | int |
541 | linux_sys_mprotect(struct lwp *l, const struct linux_sys_mprotect_args *uap, register_t *retval) | | 541 | linux_sys_mprotect(struct lwp *l, const struct linux_sys_mprotect_args *uap, register_t *retval) |
542 | { | | 542 | { |
543 | /* { | | 543 | /* { |
544 | syscallarg(const void *) start; | | 544 | syscallarg(const void *) start; |
545 | syscallarg(unsigned long) len; | | 545 | syscallarg(unsigned long) len; |
546 | syscallarg(int) prot; | | 546 | syscallarg(int) prot; |
547 | } */ | | 547 | } */ |
548 | struct vm_map_entry *entry; | | 548 | struct vm_map_entry *entry; |
549 | struct vm_map *map; | | 549 | struct vm_map *map; |
550 | struct proc *p; | | 550 | struct proc *p; |
551 | vaddr_t end, start, len, stacklim; | | 551 | vaddr_t end, start, len, stacklim; |
552 | int prot, grows; | | 552 | int prot, grows; |
553 | | | 553 | |
554 | start = (vaddr_t)SCARG(uap, start); | | 554 | start = (vaddr_t)SCARG(uap, start); |
555 | len = round_page(SCARG(uap, len)); | | 555 | len = round_page(SCARG(uap, len)); |
556 | prot = SCARG(uap, prot); | | 556 | prot = SCARG(uap, prot); |
557 | grows = prot & (LINUX_PROT_GROWSDOWN | LINUX_PROT_GROWSUP); | | 557 | grows = prot & (LINUX_PROT_GROWSDOWN | LINUX_PROT_GROWSUP); |
558 | prot &= ~grows; | | 558 | prot &= ~grows; |
559 | end = start + len; | | 559 | end = start + len; |
560 | | | 560 | |
561 | if (start & PAGE_MASK) | | 561 | if (start & PAGE_MASK) |
562 | return EINVAL; | | 562 | return EINVAL; |
563 | if (end < start) | | 563 | if (end < start) |
564 | return EINVAL; | | 564 | return EINVAL; |
565 | if (end == start) | | 565 | if (end == start) |
566 | return 0; | | 566 | return 0; |
567 | | | 567 | |
568 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) | | 568 | if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) |
569 | return EINVAL; | | 569 | return EINVAL; |
570 | if (grows == (LINUX_PROT_GROWSDOWN | LINUX_PROT_GROWSUP)) | | 570 | if (grows == (LINUX_PROT_GROWSDOWN | LINUX_PROT_GROWSUP)) |
571 | return EINVAL; | | 571 | return EINVAL; |
572 | | | 572 | |
573 | p = l->l_proc; | | 573 | p = l->l_proc; |
574 | map = &p->p_vmspace->vm_map; | | 574 | map = &p->p_vmspace->vm_map; |
575 | vm_map_lock(map); | | 575 | vm_map_lock(map); |
576 | # ifdef notdef | | 576 | # ifdef notdef |
577 | VM_MAP_RANGE_CHECK(map, start, end); | | 577 | VM_MAP_RANGE_CHECK(map, start, end); |
578 | # endif | | 578 | # endif |
579 | if (!uvm_map_lookup_entry(map, start, &entry) || entry->start > start) { | | 579 | if (!uvm_map_lookup_entry(map, start, &entry) || entry->start > start) { |
580 | vm_map_unlock(map); | | 580 | vm_map_unlock(map); |
581 | return ENOMEM; | | 581 | return ENOMEM; |
582 | } | | 582 | } |
583 | | | 583 | |
584 | /* | | 584 | /* |
585 | * Approximate the behaviour of PROT_GROWS{DOWN,UP}. | | 585 | * Approximate the behaviour of PROT_GROWS{DOWN,UP}. |
586 | */ | | 586 | */ |
587 | | | 587 | |
588 | stacklim = (vaddr_t)p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_cur; | | 588 | stacklim = (vaddr_t)p->p_limit->pl_rlimit[RLIMIT_STACK].rlim_cur; |
589 | if (grows & LINUX_PROT_GROWSDOWN) { | | 589 | if (grows & LINUX_PROT_GROWSDOWN) { |
590 | if (USRSTACK - stacklim <= start && start < USRSTACK) { | | 590 | if (USRSTACK - stacklim <= start && start < USRSTACK) { |
591 | start = USRSTACK - stacklim; | | 591 | start = USRSTACK - stacklim; |
592 | } else { | | 592 | } else { |
593 | start = entry->start; | | 593 | start = entry->start; |
594 | } | | 594 | } |
595 | } else if (grows & LINUX_PROT_GROWSUP) { | | 595 | } else if (grows & LINUX_PROT_GROWSUP) { |
596 | if (USRSTACK <= end && end < USRSTACK + stacklim) { | | 596 | if (USRSTACK <= end && end < USRSTACK + stacklim) { |
597 | end = USRSTACK + stacklim; | | 597 | end = USRSTACK + stacklim; |
598 | } else { | | 598 | } else { |
599 | end = entry->end; | | 599 | end = entry->end; |
600 | } | | 600 | } |
601 | } | | 601 | } |
602 | vm_map_unlock(map); | | 602 | vm_map_unlock(map); |
603 | return uvm_map_protect(map, start, end, prot, FALSE); | | 603 | return uvm_map_protect(map, start, end, prot, FALSE); |
604 | } | | 604 | } |
605 | | | 605 | |
606 | /* | | 606 | /* |
607 | * This code is partly stolen from src/lib/libc/compat-43/times.c | | 607 | * This code is partly stolen from src/lib/libc/compat-43/times.c |
608 | */ | | 608 | */ |
609 | | | 609 | |
610 | #define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz)) | | 610 | #define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz)) |
611 | | | 611 | |
612 | int | | 612 | int |
613 | linux_sys_times(struct lwp *l, const struct linux_sys_times_args *uap, register_t *retval) | | 613 | linux_sys_times(struct lwp *l, const struct linux_sys_times_args *uap, register_t *retval) |
614 | { | | 614 | { |
615 | /* { | | 615 | /* { |
616 | syscallarg(struct times *) tms; | | 616 | syscallarg(struct times *) tms; |
617 | } */ | | 617 | } */ |
618 | struct proc *p = l->l_proc; | | 618 | struct proc *p = l->l_proc; |
619 | struct timeval t; | | 619 | struct timeval t; |
620 | int error; | | 620 | int error; |
621 | | | 621 | |
622 | if (SCARG(uap, tms)) { | | 622 | if (SCARG(uap, tms)) { |
623 | struct linux_tms ltms; | | 623 | struct linux_tms ltms; |
624 | struct rusage ru; | | 624 | struct rusage ru; |
625 | | | 625 | |
626 | mutex_enter(p->p_lock); | | 626 | mutex_enter(p->p_lock); |
627 | calcru(p, &ru.ru_utime, &ru.ru_stime, NULL, NULL); | | 627 | calcru(p, &ru.ru_utime, &ru.ru_stime, NULL, NULL); |
628 | ltms.ltms_utime = CONVTCK(ru.ru_utime); | | 628 | ltms.ltms_utime = CONVTCK(ru.ru_utime); |
629 | ltms.ltms_stime = CONVTCK(ru.ru_stime); | | 629 | ltms.ltms_stime = CONVTCK(ru.ru_stime); |
630 | ltms.ltms_cutime = CONVTCK(p->p_stats->p_cru.ru_utime); | | 630 | ltms.ltms_cutime = CONVTCK(p->p_stats->p_cru.ru_utime); |
631 | ltms.ltms_cstime = CONVTCK(p->p_stats->p_cru.ru_stime); | | 631 | ltms.ltms_cstime = CONVTCK(p->p_stats->p_cru.ru_stime); |
632 | mutex_exit(p->p_lock); | | 632 | mutex_exit(p->p_lock); |
633 | | | 633 | |
634 | if ((error = copyout(<ms, SCARG(uap, tms), sizeof ltms))) | | 634 | if ((error = copyout(<ms, SCARG(uap, tms), sizeof ltms))) |
635 | return error; | | 635 | return error; |
636 | } | | 636 | } |
637 | | | 637 | |
638 | getmicrouptime(&t); | | 638 | getmicrouptime(&t); |
639 | | | 639 | |
640 | retval[0] = ((linux_clock_t)(CONVTCK(t))); | | 640 | retval[0] = ((linux_clock_t)(CONVTCK(t))); |
641 | return 0; | | 641 | return 0; |
642 | } | | 642 | } |
643 | | | 643 | |
644 | #undef CONVTCK | | 644 | #undef CONVTCK |
645 | | | 645 | |
646 | /* | | 646 | /* |
647 | * Linux 'readdir' call. This code is mostly taken from the | | 647 | * Linux 'readdir' call. This code is mostly taken from the |
648 | * SunOS getdents call (see compat/sunos/sunos_misc.c), though | | 648 | * SunOS getdents call (see compat/sunos/sunos_misc.c), though |
649 | * an attempt has been made to keep it a little cleaner (failing | | 649 | * an attempt has been made to keep it a little cleaner (failing |
650 | * miserably, because of the cruft needed if count 1 is passed). | | 650 | * miserably, because of the cruft needed if count 1 is passed). |
651 | * | | 651 | * |
652 | * The d_off field should contain the offset of the next valid entry, | | 652 | * The d_off field should contain the offset of the next valid entry, |
653 | * but in Linux it has the offset of the entry itself. We emulate | | 653 | * but in Linux it has the offset of the entry itself. We emulate |
654 | * that bug here. | | 654 | * that bug here. |
655 | * | | 655 | * |
656 | * Read in BSD-style entries, convert them, and copy them out. | | 656 | * Read in BSD-style entries, convert them, and copy them out. |
657 | * | | 657 | * |
658 | * Note that this doesn't handle union-mounted filesystems. | | 658 | * Note that this doesn't handle union-mounted filesystems. |
659 | */ | | 659 | */ |
660 | int | | 660 | int |
661 | linux_sys_getdents(struct lwp *l, const struct linux_sys_getdents_args *uap, register_t *retval) | | 661 | linux_sys_getdents(struct lwp *l, const struct linux_sys_getdents_args *uap, register_t *retval) |
662 | { | | 662 | { |
663 | /* { | | 663 | /* { |
664 | syscallarg(int) fd; | | 664 | syscallarg(int) fd; |
665 | syscallarg(struct linux_dirent *) dent; | | 665 | syscallarg(struct linux_dirent *) dent; |
666 | syscallarg(unsigned int) count; | | 666 | syscallarg(unsigned int) count; |
667 | } */ | | 667 | } */ |
668 | struct dirent *bdp; | | 668 | struct dirent *bdp; |
669 | struct vnode *vp; | | 669 | struct vnode *vp; |
670 | char *inp, *tbuf; /* BSD-format */ | | 670 | char *inp, *tbuf; /* BSD-format */ |
671 | int len, reclen; /* BSD-format */ | | 671 | int len, reclen; /* BSD-format */ |
672 | char *outp; /* Linux-format */ | | 672 | char *outp; /* Linux-format */ |
673 | int resid, linux_reclen = 0; /* Linux-format */ | | 673 | int resid, linux_reclen = 0; /* Linux-format */ |
674 | struct file *fp; | | 674 | struct file *fp; |
675 | struct uio auio; | | 675 | struct uio auio; |
676 | struct iovec aiov; | | 676 | struct iovec aiov; |
677 | struct linux_dirent idb; | | 677 | struct linux_dirent idb; |
678 | off_t off; /* true file offset */ | | 678 | off_t off; /* true file offset */ |
679 | int buflen, error, eofflag, nbytes, oldcall; | | 679 | int buflen, error, eofflag, nbytes, oldcall; |
680 | struct vattr va; | | 680 | struct vattr va; |
681 | off_t *cookiebuf = NULL, *cookie; | | 681 | off_t *cookiebuf = NULL, *cookie; |
682 | int ncookies; | | 682 | int ncookies; |
683 | | | 683 | |
684 | /* fd_getvnode() will use the descriptor for us */ | | 684 | /* fd_getvnode() will use the descriptor for us */ |
685 | if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) | | 685 | if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) |
686 | return (error); | | 686 | return (error); |
687 | | | 687 | |
688 | if ((fp->f_flag & FREAD) == 0) { | | 688 | if ((fp->f_flag & FREAD) == 0) { |
689 | error = EBADF; | | 689 | error = EBADF; |
690 | goto out1; | | 690 | goto out1; |
691 | } | | 691 | } |
692 | | | 692 | |
693 | vp = (struct vnode *)fp->f_data; | | 693 | vp = (struct vnode *)fp->f_data; |
694 | if (vp->v_type != VDIR) { | | 694 | if (vp->v_type != VDIR) { |
695 | error = ENOTDIR; | | 695 | error = ENOTDIR; |
696 | goto out1; | | 696 | goto out1; |
697 | } | | 697 | } |
698 | | | 698 | |
699 | if ((error = VOP_GETATTR(vp, &va, l->l_cred))) | | 699 | if ((error = VOP_GETATTR(vp, &va, l->l_cred))) |
700 | goto out1; | | 700 | goto out1; |
701 | | | 701 | |
702 | nbytes = SCARG(uap, count); | | 702 | nbytes = SCARG(uap, count); |
703 | if (nbytes == 1) { /* emulating old, broken behaviour */ | | 703 | if (nbytes == 1) { /* emulating old, broken behaviour */ |
704 | nbytes = sizeof (idb); | | 704 | nbytes = sizeof (idb); |
705 | buflen = max(va.va_blocksize, nbytes); | | 705 | buflen = max(va.va_blocksize, nbytes); |
706 | oldcall = 1; | | 706 | oldcall = 1; |
707 | } else { | | 707 | } else { |
708 | buflen = min(MAXBSIZE, nbytes); | | 708 | buflen = min(MAXBSIZE, nbytes); |
709 | if (buflen < va.va_blocksize) | | 709 | if (buflen < va.va_blocksize) |
710 | buflen = va.va_blocksize; | | 710 | buflen = va.va_blocksize; |
711 | oldcall = 0; | | 711 | oldcall = 0; |
712 | } | | 712 | } |
713 | tbuf = malloc(buflen, M_TEMP, M_WAITOK); | | 713 | tbuf = malloc(buflen, M_TEMP, M_WAITOK); |
714 | | | 714 | |
715 | vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); | | 715 | vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); |
716 | off = fp->f_offset; | | 716 | off = fp->f_offset; |
717 | again: | | 717 | again: |
718 | aiov.iov_base = tbuf; | | 718 | aiov.iov_base = tbuf; |
719 | aiov.iov_len = buflen; | | 719 | aiov.iov_len = buflen; |
720 | auio.uio_iov = &aiov; | | 720 | auio.uio_iov = &aiov; |
721 | auio.uio_iovcnt = 1; | | 721 | auio.uio_iovcnt = 1; |
722 | auio.uio_rw = UIO_READ; | | 722 | auio.uio_rw = UIO_READ; |
723 | auio.uio_resid = buflen; | | 723 | auio.uio_resid = buflen; |
724 | auio.uio_offset = off; | | 724 | auio.uio_offset = off; |
725 | UIO_SETUP_SYSSPACE(&auio); | | 725 | UIO_SETUP_SYSSPACE(&auio); |
726 | /* | | 726 | /* |
727 | * First we read into the malloc'ed buffer, then | | 727 | * First we read into the malloc'ed buffer, then |
728 | * we massage it into user space, one record at a time. | | 728 | * we massage it into user space, one record at a time. |
729 | */ | | 729 | */ |
730 | error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf, | | 730 | error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf, |
731 | &ncookies); | | 731 | &ncookies); |
732 | if (error) | | 732 | if (error) |
733 | goto out; | | 733 | goto out; |
734 | | | 734 | |
735 | inp = tbuf; | | 735 | inp = tbuf; |
736 | outp = (void *)SCARG(uap, dent); | | 736 | outp = (void *)SCARG(uap, dent); |
737 | resid = nbytes; | | 737 | resid = nbytes; |
738 | if ((len = buflen - auio.uio_resid) == 0) | | 738 | if ((len = buflen - auio.uio_resid) == 0) |
739 | goto eof; | | 739 | goto eof; |
740 | | | 740 | |
741 | for (cookie = cookiebuf; len > 0; len -= reclen) { | | 741 | for (cookie = cookiebuf; len > 0; len -= reclen) { |
742 | bdp = (struct dirent *)inp; | | 742 | bdp = (struct dirent *)inp; |
743 | reclen = bdp->d_reclen; | | 743 | reclen = bdp->d_reclen; |
744 | if (reclen & 3) | | 744 | if (reclen & 3) |
745 | panic("linux_readdir"); | | 745 | panic("linux_readdir"); |
746 | if (bdp->d_fileno == 0) { | | 746 | if (bdp->d_fileno == 0) { |
747 | inp += reclen; /* it is a hole; squish it out */ | | 747 | inp += reclen; /* it is a hole; squish it out */ |
748 | if (cookie) | | 748 | if (cookie) |
749 | off = *cookie++; | | 749 | off = *cookie++; |
750 | else | | 750 | else |
751 | off += reclen; | | 751 | off += reclen; |
752 | continue; | | 752 | continue; |
753 | } | | 753 | } |
754 | linux_reclen = LINUX_RECLEN(&idb, bdp->d_namlen); | | 754 | linux_reclen = LINUX_RECLEN(&idb, bdp->d_namlen); |
755 | if (reclen > len || resid < linux_reclen) { | | 755 | if (reclen > len || resid < linux_reclen) { |
756 | /* entry too big for buffer, so just stop */ | | 756 | /* entry too big for buffer, so just stop */ |
757 | outp++; | | 757 | outp++; |
758 | break; | | 758 | break; |
759 | } | | 759 | } |
760 | /* | | 760 | /* |
761 | * Massage in place to make a Linux-shaped dirent (otherwise | | 761 | * Massage in place to make a Linux-shaped dirent (otherwise |
762 | * we have to worry about touching user memory outside of | | 762 | * we have to worry about touching user memory outside of |
763 | * the copyout() call). | | 763 | * the copyout() call). |
764 | */ | | 764 | */ |
765 | idb.d_ino = bdp->d_fileno; | | 765 | idb.d_ino = bdp->d_fileno; |
766 | /* | | 766 | /* |
767 | * The old readdir() call misuses the offset and reclen fields. | | 767 | * The old readdir() call misuses the offset and reclen fields. |
768 | */ | | 768 | */ |
769 | if (oldcall) { | | 769 | if (oldcall) { |
770 | idb.d_off = (linux_off_t)linux_reclen; | | 770 | idb.d_off = (linux_off_t)linux_reclen; |
771 | idb.d_reclen = (u_short)bdp->d_namlen; | | 771 | idb.d_reclen = (u_short)bdp->d_namlen; |
772 | } else { | | 772 | } else { |
773 | if (sizeof (idb.d_off) <= 4 && (off >> 32) != 0) { | | 773 | if (sizeof (idb.d_off) <= 4 && (off >> 32) != 0) { |
774 | compat_offseterr(vp, "linux_getdents"); | | 774 | compat_offseterr(vp, "linux_getdents"); |
775 | error = EINVAL; | | 775 | error = EINVAL; |
776 | goto out; | | 776 | goto out; |
777 | } | | 777 | } |
778 | idb.d_off = (linux_off_t)off; | | 778 | idb.d_off = (linux_off_t)off; |
779 | idb.d_reclen = (u_short)linux_reclen; | | 779 | idb.d_reclen = (u_short)linux_reclen; |
780 | } | | 780 | } |
781 | strcpy(idb.d_name, bdp->d_name); | | 781 | strcpy(idb.d_name, bdp->d_name); |
782 | idb.d_name[strlen(idb.d_name) + 1] = bdp->d_type; | | 782 | idb.d_name[strlen(idb.d_name) + 1] = bdp->d_type; |
783 | if ((error = copyout((void *)&idb, outp, linux_reclen))) | | 783 | if ((error = copyout((void *)&idb, outp, linux_reclen))) |
784 | goto out; | | 784 | goto out; |
785 | /* advance past this real entry */ | | 785 | /* advance past this real entry */ |
786 | inp += reclen; | | 786 | inp += reclen; |
787 | if (cookie) | | 787 | if (cookie) |
788 | off = *cookie++; /* each entry points to itself */ | | 788 | off = *cookie++; /* each entry points to itself */ |
789 | else | | 789 | else |
790 | off += reclen; | | 790 | off += reclen; |
791 | /* advance output past Linux-shaped entry */ | | 791 | /* advance output past Linux-shaped entry */ |
792 | outp += linux_reclen; | | 792 | outp += linux_reclen; |
793 | resid -= linux_reclen; | | 793 | resid -= linux_reclen; |
794 | if (oldcall) | | 794 | if (oldcall) |
795 | break; | | 795 | break; |
796 | } | | 796 | } |
797 | | | 797 | |
798 | /* if we squished out the whole block, try again */ | | 798 | /* if we squished out the whole block, try again */ |
799 | if (outp == (void *)SCARG(uap, dent)) { | | 799 | if (outp == (void *)SCARG(uap, dent)) { |
800 | if (cookiebuf) | | 800 | if (cookiebuf) |
801 | free(cookiebuf, M_TEMP); | | 801 | free(cookiebuf, M_TEMP); |
802 | cookiebuf = NULL; | | 802 | cookiebuf = NULL; |
803 | goto again; | | 803 | goto again; |
804 | } | | 804 | } |
805 | fp->f_offset = off; /* update the vnode offset */ | | 805 | fp->f_offset = off; /* update the vnode offset */ |
806 | | | 806 | |
807 | if (oldcall) | | 807 | if (oldcall) |
808 | nbytes = resid + linux_reclen; | | 808 | nbytes = resid + linux_reclen; |
809 | | | 809 | |
810 | eof: | | 810 | eof: |
811 | *retval = nbytes - resid; | | 811 | *retval = nbytes - resid; |
812 | out: | | 812 | out: |
813 | VOP_UNLOCK(vp); | | 813 | VOP_UNLOCK(vp); |
814 | if (cookiebuf) | | 814 | if (cookiebuf) |
815 | free(cookiebuf, M_TEMP); | | 815 | free(cookiebuf, M_TEMP); |
816 | free(tbuf, M_TEMP); | | 816 | free(tbuf, M_TEMP); |
817 | out1: | | 817 | out1: |
818 | fd_putfile(SCARG(uap, fd)); | | 818 | fd_putfile(SCARG(uap, fd)); |
819 | return error; | | 819 | return error; |
820 | } | | 820 | } |
821 | | | 821 | |
822 | /* | | 822 | /* |
823 | * Even when just using registers to pass arguments to syscalls you can | | 823 | * Even when just using registers to pass arguments to syscalls you can |
824 | * have 5 of them on the i386. So this newer version of select() does | | 824 | * have 5 of them on the i386. So this newer version of select() does |
825 | * this. | | 825 | * this. |
826 | */ | | 826 | */ |
827 | int | | 827 | int |
828 | linux_sys_select(struct lwp *l, const struct linux_sys_select_args *uap, register_t *retval) | | 828 | linux_sys_select(struct lwp *l, const struct linux_sys_select_args *uap, register_t *retval) |
829 | { | | 829 | { |
830 | /* { | | 830 | /* { |
831 | syscallarg(int) nfds; | | 831 | syscallarg(int) nfds; |
832 | syscallarg(fd_set *) readfds; | | 832 | syscallarg(fd_set *) readfds; |
833 | syscallarg(fd_set *) writefds; | | 833 | syscallarg(fd_set *) writefds; |
834 | syscallarg(fd_set *) exceptfds; | | 834 | syscallarg(fd_set *) exceptfds; |
835 | syscallarg(struct timeval50 *) timeout; | | 835 | syscallarg(struct timeval50 *) timeout; |
836 | } */ | | 836 | } */ |
837 | | | 837 | |
838 | return linux_select1(l, retval, SCARG(uap, nfds), SCARG(uap, readfds), | | 838 | return linux_select1(l, retval, SCARG(uap, nfds), SCARG(uap, readfds), |
839 | SCARG(uap, writefds), SCARG(uap, exceptfds), | | 839 | SCARG(uap, writefds), SCARG(uap, exceptfds), |
840 | (struct linux_timeval *)SCARG(uap, timeout)); | | 840 | (struct linux_timeval *)SCARG(uap, timeout)); |
841 | } | | 841 | } |
842 | | | 842 | |
843 | /* | | 843 | /* |
844 | * Common code for the old and new versions of select(). A couple of | | 844 | * Common code for the old and new versions of select(). A couple of |
845 | * things are important: | | 845 | * things are important: |
846 | * 1) return the amount of time left in the 'timeout' parameter | | 846 | * 1) return the amount of time left in the 'timeout' parameter |
847 | * 2) select never returns ERESTART on Linux, always return EINTR | | 847 | * 2) select never returns ERESTART on Linux, always return EINTR |
848 | */ | | 848 | */ |
849 | int | | 849 | int |
850 | linux_select1(struct lwp *l, register_t *retval, int nfds, fd_set *readfds, | | 850 | linux_select1(struct lwp *l, register_t *retval, int nfds, fd_set *readfds, |
851 | fd_set *writefds, fd_set *exceptfds, struct linux_timeval *timeout) | | 851 | fd_set *writefds, fd_set *exceptfds, struct linux_timeval *timeout) |
852 | { | | 852 | { |
853 | struct timespec ts0, ts1, uts, *ts = NULL; | | 853 | struct timespec ts0, ts1, uts, *ts = NULL; |
854 | struct linux_timeval ltv; | | 854 | struct linux_timeval ltv; |
855 | int error; | | 855 | int error; |
856 | | | 856 | |
857 | /* | | 857 | /* |
858 | * Store current time for computation of the amount of | | 858 | * Store current time for computation of the amount of |
859 | * time left. | | 859 | * time left. |
860 | */ | | 860 | */ |
861 | if (timeout) { | | 861 | if (timeout) { |
862 | if ((error = copyin(timeout, <v, sizeof(ltv)))) | | 862 | if ((error = copyin(timeout, <v, sizeof(ltv)))) |
863 | return error; | | 863 | return error; |
864 | uts.tv_sec = ltv.tv_sec; | | 864 | uts.tv_sec = ltv.tv_sec; |
865 | uts.tv_nsec = ltv.tv_usec * 1000; | | 865 | uts.tv_nsec = ltv.tv_usec * 1000; |
866 | if (itimespecfix(&uts)) { | | 866 | if (itimespecfix(&uts)) { |
867 | /* | | 867 | /* |
868 | * The timeval was invalid. Convert it to something | | 868 | * The timeval was invalid. Convert it to something |
869 | * valid that will act as it does under Linux. | | 869 | * valid that will act as it does under Linux. |
870 | */ | | 870 | */ |
871 | uts.tv_sec += uts.tv_nsec / 1000000000; | | 871 | uts.tv_sec += uts.tv_nsec / 1000000000; |
872 | uts.tv_nsec %= 1000000000; | | 872 | uts.tv_nsec %= 1000000000; |
873 | if (uts.tv_nsec < 0) { | | 873 | if (uts.tv_nsec < 0) { |
874 | uts.tv_sec -= 1; | | 874 | uts.tv_sec -= 1; |
875 | uts.tv_nsec += 1000000000; | | 875 | uts.tv_nsec += 1000000000; |
876 | } | | 876 | } |
877 | if (uts.tv_sec < 0) | | 877 | if (uts.tv_sec < 0) |
878 | timespecclear(&uts); | | 878 | timespecclear(&uts); |
879 | } | | 879 | } |
880 | ts = &uts; | | 880 | ts = &uts; |
881 | nanotime(&ts0); | | 881 | nanotime(&ts0); |
882 | } | | 882 | } |
883 | | | 883 | |
884 | error = selcommon(retval, nfds, readfds, writefds, exceptfds, ts, NULL); | | 884 | error = selcommon(retval, nfds, readfds, writefds, exceptfds, ts, NULL); |
885 | | | 885 | |
886 | if (error) { | | 886 | if (error) { |
887 | /* | | 887 | /* |
888 | * See fs/select.c in the Linux kernel. Without this, | | 888 | * See fs/select.c in the Linux kernel. Without this, |
889 | * Maelstrom doesn't work. | | 889 | * Maelstrom doesn't work. |
890 | */ | | 890 | */ |
891 | if (error == ERESTART) | | 891 | if (error == ERESTART) |
892 | error = EINTR; | | 892 | error = EINTR; |
893 | return error; | | 893 | return error; |
894 | } | | 894 | } |
895 | | | 895 | |
896 | if (timeout) { | | 896 | if (timeout) { |
897 | if (*retval) { | | 897 | if (*retval) { |
898 | /* | | 898 | /* |
899 | * Compute how much time was left of the timeout, | | 899 | * Compute how much time was left of the timeout, |
900 | * by subtracting the current time and the time | | 900 | * by subtracting the current time and the time |
901 | * before we started the call, and subtracting | | 901 | * before we started the call, and subtracting |
902 | * that result from the user-supplied value. | | 902 | * that result from the user-supplied value. |
903 | */ | | 903 | */ |
904 | nanotime(&ts1); | | 904 | nanotime(&ts1); |
905 | timespecsub(&ts1, &ts0, &ts1); | | 905 | timespecsub(&ts1, &ts0, &ts1); |
906 | timespecsub(&uts, &ts1, &uts); | | 906 | timespecsub(&uts, &ts1, &uts); |
907 | if (uts.tv_sec < 0) | | 907 | if (uts.tv_sec < 0) |
908 | timespecclear(&uts); | | 908 | timespecclear(&uts); |
909 | } else | | 909 | } else |
910 | timespecclear(&uts); | | 910 | timespecclear(&uts); |
911 | ltv.tv_sec = uts.tv_sec; | | 911 | ltv.tv_sec = uts.tv_sec; |
912 | ltv.tv_usec = uts.tv_nsec / 1000; | | 912 | ltv.tv_usec = uts.tv_nsec / 1000; |
913 | if ((error = copyout(<v, timeout, sizeof(ltv)))) | | 913 | if ((error = copyout(<v, timeout, sizeof(ltv)))) |
914 | return error; | | 914 | return error; |
915 | } | | 915 | } |
916 | | | 916 | |
917 | return 0; | | 917 | return 0; |
918 | } | | 918 | } |
919 | | | 919 | |
920 | /* | | 920 | /* |
921 | * Set the 'personality' (emulation mode) for the current process. Only | | 921 | * Set the 'personality' (emulation mode) for the current process. Only |
922 | * accept the Linux personality here (0). This call is needed because | | 922 | * accept the Linux personality here (0). This call is needed because |
923 | * the Linux ELF crt0 issues it in an ugly kludge to make sure that | | 923 | * the Linux ELF crt0 issues it in an ugly kludge to make sure that |
924 | * ELF binaries run in Linux mode, not SVR4 mode. | | 924 | * ELF binaries run in Linux mode, not SVR4 mode. |
925 | */ | | 925 | */ |
926 | int | | 926 | int |
927 | linux_sys_personality(struct lwp *l, const struct linux_sys_personality_args *uap, register_t *retval) | | 927 | linux_sys_personality(struct lwp *l, const struct linux_sys_personality_args *uap, register_t *retval) |
928 | { | | 928 | { |
929 | /* { | | 929 | /* { |
930 | syscallarg(unsigned long) per; | | 930 | syscallarg(unsigned long) per; |
931 | } */ | | 931 | } */ |
| | | 932 | struct linux_emuldata *led; |
| | | 933 | int per; |
932 | | | 934 | |
933 | switch (SCARG(uap, per)) { | | 935 | per = SCARG(uap, per); |
| | | 936 | led = l->l_emuldata; |
| | | 937 | if (per == LINUX_PER_QUERY) { |
| | | 938 | retval[0] = led->led_personality; |
| | | 939 | return 0; |
| | | 940 | } |
| | | 941 | |
| | | 942 | switch (per & LINUX_PER_MASK) { |
934 | case LINUX_PER_LINUX: | | 943 | case LINUX_PER_LINUX: |
935 | case LINUX_PER_QUERY: | | 944 | case LINUX_PER_LINUX32: |
| | | 945 | led->led_personality = per; |
936 | break; | | 946 | break; |
| | | 947 | |
937 | default: | | 948 | default: |
938 | return EINVAL; | | 949 | return EINVAL; |
939 | } | | 950 | } |
940 | | | 951 | |
941 | retval[0] = LINUX_PER_LINUX; | | 952 | retval[0] = per; |
942 | return 0; | | 953 | return 0; |
943 | } | | 954 | } |
944 | | | 955 | |
945 | /* | | 956 | /* |
946 | * We have nonexistent fsuid equal to uid. | | 957 | * We have nonexistent fsuid equal to uid. |
947 | * If modification is requested, refuse. | | 958 | * If modification is requested, refuse. |
948 | */ | | 959 | */ |
949 | int | | 960 | int |
950 | linux_sys_setfsuid(struct lwp *l, const struct linux_sys_setfsuid_args *uap, register_t *retval) | | 961 | linux_sys_setfsuid(struct lwp *l, const struct linux_sys_setfsuid_args *uap, register_t *retval) |
951 | { | | 962 | { |
952 | /* { | | 963 | /* { |
953 | syscallarg(uid_t) uid; | | 964 | syscallarg(uid_t) uid; |
954 | } */ | | 965 | } */ |
955 | uid_t uid; | | 966 | uid_t uid; |
956 | | | 967 | |
957 | uid = SCARG(uap, uid); | | 968 | uid = SCARG(uap, uid); |
958 | if (kauth_cred_getuid(l->l_cred) != uid) | | 969 | if (kauth_cred_getuid(l->l_cred) != uid) |
959 | return sys_nosys(l, uap, retval); | | 970 | return sys_nosys(l, uap, retval); |
960 | | | 971 | |
961 | *retval = uid; | | 972 | *retval = uid; |
962 | return 0; | | 973 | return 0; |
963 | } | | 974 | } |
964 | | | 975 | |
965 | int | | 976 | int |
966 | linux_sys_setfsgid(struct lwp *l, const struct linux_sys_setfsgid_args *uap, register_t *retval) | | 977 | linux_sys_setfsgid(struct lwp *l, const struct linux_sys_setfsgid_args *uap, register_t *retval) |
967 | { | | 978 | { |
968 | /* { | | 979 | /* { |
969 | syscallarg(gid_t) gid; | | 980 | syscallarg(gid_t) gid; |
970 | } */ | | 981 | } */ |
971 | gid_t gid; | | 982 | gid_t gid; |
972 | | | 983 | |
973 | gid = SCARG(uap, gid); | | 984 | gid = SCARG(uap, gid); |
974 | if (kauth_cred_getgid(l->l_cred) != gid) | | 985 | if (kauth_cred_getgid(l->l_cred) != gid) |
975 | return sys_nosys(l, uap, retval); | | 986 | return sys_nosys(l, uap, retval); |
976 | | | 987 | |
977 | *retval = gid; | | 988 | *retval = gid; |
978 | return 0; | | 989 | return 0; |
979 | } | | 990 | } |
980 | | | 991 | |
981 | int | | 992 | int |
982 | linux_sys_setresuid(struct lwp *l, const struct linux_sys_setresuid_args *uap, register_t *retval) | | 993 | linux_sys_setresuid(struct lwp *l, const struct linux_sys_setresuid_args *uap, register_t *retval) |
983 | { | | 994 | { |
984 | /* { | | 995 | /* { |
985 | syscallarg(uid_t) ruid; | | 996 | syscallarg(uid_t) ruid; |
986 | syscallarg(uid_t) euid; | | 997 | syscallarg(uid_t) euid; |
987 | syscallarg(uid_t) suid; | | 998 | syscallarg(uid_t) suid; |
988 | } */ | | 999 | } */ |
989 | | | 1000 | |
990 | /* | | 1001 | /* |
991 | * Note: These checks are a little different than the NetBSD | | 1002 | * Note: These checks are a little different than the NetBSD |
992 | * setreuid(2) call performs. This precisely follows the | | 1003 | * setreuid(2) call performs. This precisely follows the |
993 | * behavior of the Linux kernel. | | 1004 | * behavior of the Linux kernel. |
994 | */ | | 1005 | */ |
995 | | | 1006 | |
996 | return do_setresuid(l, SCARG(uap, ruid), SCARG(uap, euid), | | 1007 | return do_setresuid(l, SCARG(uap, ruid), SCARG(uap, euid), |
997 | SCARG(uap, suid), | | 1008 | SCARG(uap, suid), |
998 | ID_R_EQ_R | ID_R_EQ_E | ID_R_EQ_S | | | 1009 | ID_R_EQ_R | ID_R_EQ_E | ID_R_EQ_S | |
999 | ID_E_EQ_R | ID_E_EQ_E | ID_E_EQ_S | | | 1010 | ID_E_EQ_R | ID_E_EQ_E | ID_E_EQ_S | |
1000 | ID_S_EQ_R | ID_S_EQ_E | ID_S_EQ_S ); | | 1011 | ID_S_EQ_R | ID_S_EQ_E | ID_S_EQ_S ); |
1001 | } | | 1012 | } |
1002 | | | 1013 | |
1003 | int | | 1014 | int |
1004 | linux_sys_getresuid(struct lwp *l, const struct linux_sys_getresuid_args *uap, register_t *retval) | | 1015 | linux_sys_getresuid(struct lwp *l, const struct linux_sys_getresuid_args *uap, register_t *retval) |
1005 | { | | 1016 | { |
1006 | /* { | | 1017 | /* { |
1007 | syscallarg(uid_t *) ruid; | | 1018 | syscallarg(uid_t *) ruid; |
1008 | syscallarg(uid_t *) euid; | | 1019 | syscallarg(uid_t *) euid; |
1009 | syscallarg(uid_t *) suid; | | 1020 | syscallarg(uid_t *) suid; |
1010 | } */ | | 1021 | } */ |
1011 | kauth_cred_t pc = l->l_cred; | | 1022 | kauth_cred_t pc = l->l_cred; |
1012 | int error; | | 1023 | int error; |
1013 | uid_t uid; | | 1024 | uid_t uid; |
1014 | | | 1025 | |
1015 | /* | | 1026 | /* |
1016 | * Linux copies these values out to userspace like so: | | 1027 | * Linux copies these values out to userspace like so: |
1017 | * | | 1028 | * |
1018 | * 1. Copy out ruid. | | 1029 | * 1. Copy out ruid. |
1019 | * 2. If that succeeds, copy out euid. | | 1030 | * 2. If that succeeds, copy out euid. |
1020 | * 3. If both of those succeed, copy out suid. | | 1031 | * 3. If both of those succeed, copy out suid. |
1021 | */ | | 1032 | */ |
1022 | uid = kauth_cred_getuid(pc); | | 1033 | uid = kauth_cred_getuid(pc); |
1023 | if ((error = copyout(&uid, SCARG(uap, ruid), sizeof(uid_t))) != 0) | | 1034 | if ((error = copyout(&uid, SCARG(uap, ruid), sizeof(uid_t))) != 0) |
1024 | return (error); | | 1035 | return (error); |
1025 | | | 1036 | |
1026 | uid = kauth_cred_geteuid(pc); | | 1037 | uid = kauth_cred_geteuid(pc); |
1027 | if ((error = copyout(&uid, SCARG(uap, euid), sizeof(uid_t))) != 0) | | 1038 | if ((error = copyout(&uid, SCARG(uap, euid), sizeof(uid_t))) != 0) |
1028 | return (error); | | 1039 | return (error); |
1029 | | | 1040 | |
1030 | uid = kauth_cred_getsvuid(pc); | | 1041 | uid = kauth_cred_getsvuid(pc); |
1031 | | | 1042 | |
1032 | return (copyout(&uid, SCARG(uap, suid), sizeof(uid_t))); | | 1043 | return (copyout(&uid, SCARG(uap, suid), sizeof(uid_t))); |
1033 | } | | 1044 | } |
1034 | | | 1045 | |
1035 | int | | 1046 | int |
1036 | linux_sys_ptrace(struct lwp *l, const struct linux_sys_ptrace_args *uap, register_t *retval) | | 1047 | linux_sys_ptrace(struct lwp *l, const struct linux_sys_ptrace_args *uap, register_t *retval) |
1037 | { | | 1048 | { |
1038 | /* { | | 1049 | /* { |
1039 | i386, m68k, powerpc: T=int | | 1050 | i386, m68k, powerpc: T=int |
1040 | alpha, amd64: T=long | | 1051 | alpha, amd64: T=long |
1041 | syscallarg(T) request; | | 1052 | syscallarg(T) request; |
1042 | syscallarg(T) pid; | | 1053 | syscallarg(T) pid; |
1043 | syscallarg(T) addr; | | 1054 | syscallarg(T) addr; |
1044 | syscallarg(T) data; | | 1055 | syscallarg(T) data; |
1045 | } */ | | 1056 | } */ |
1046 | const int *ptr; | | 1057 | const int *ptr; |
1047 | int request; | | 1058 | int request; |
1048 | int error; | | 1059 | int error; |
1049 | | | 1060 | |
1050 | ptr = linux_ptrace_request_map; | | 1061 | ptr = linux_ptrace_request_map; |
1051 | request = SCARG(uap, request); | | 1062 | request = SCARG(uap, request); |
1052 | while (*ptr != -1) | | 1063 | while (*ptr != -1) |
1053 | if (*ptr++ == request) { | | 1064 | if (*ptr++ == request) { |
1054 | struct sys_ptrace_args pta; | | 1065 | struct sys_ptrace_args pta; |
1055 | | | 1066 | |
1056 | SCARG(&pta, req) = *ptr; | | 1067 | SCARG(&pta, req) = *ptr; |
1057 | SCARG(&pta, pid) = SCARG(uap, pid); | | 1068 | SCARG(&pta, pid) = SCARG(uap, pid); |
1058 | SCARG(&pta, addr) = (void *)SCARG(uap, addr); | | 1069 | SCARG(&pta, addr) = (void *)SCARG(uap, addr); |
1059 | SCARG(&pta, data) = SCARG(uap, data); | | 1070 | SCARG(&pta, data) = SCARG(uap, data); |
1060 | | | 1071 | |
1061 | /* | | 1072 | /* |
1062 | * Linux ptrace(PTRACE_CONT, pid, 0, 0) means actually | | 1073 | * Linux ptrace(PTRACE_CONT, pid, 0, 0) means actually |
1063 | * to continue where the process left off previously. | | 1074 | * to continue where the process left off previously. |
1064 | * The same thing is achieved by addr == (void *) 1 | | 1075 | * The same thing is achieved by addr == (void *) 1 |
1065 | * on NetBSD, so rewrite 'addr' appropriately. | | 1076 | * on NetBSD, so rewrite 'addr' appropriately. |
1066 | */ | | 1077 | */ |
1067 | if (request == LINUX_PTRACE_CONT && SCARG(uap, addr)==0) | | 1078 | if (request == LINUX_PTRACE_CONT && SCARG(uap, addr)==0) |
1068 | SCARG(&pta, addr) = (void *) 1; | | 1079 | SCARG(&pta, addr) = (void *) 1; |
1069 | | | 1080 | |
1070 | error = sysent[SYS_ptrace].sy_call(l, &pta, retval); | | 1081 | error = sysent[SYS_ptrace].sy_call(l, &pta, retval); |
1071 | if (error) | | 1082 | if (error) |
1072 | return error; | | 1083 | return error; |
1073 | switch (request) { | | 1084 | switch (request) { |
1074 | case LINUX_PTRACE_PEEKTEXT: | | 1085 | case LINUX_PTRACE_PEEKTEXT: |
1075 | case LINUX_PTRACE_PEEKDATA: | | 1086 | case LINUX_PTRACE_PEEKDATA: |
1076 | error = copyout (retval, | | 1087 | error = copyout (retval, |
1077 | (void *)SCARG(uap, data), | | 1088 | (void *)SCARG(uap, data), |
1078 | sizeof *retval); | | 1089 | sizeof *retval); |
1079 | *retval = SCARG(uap, data); | | 1090 | *retval = SCARG(uap, data); |
1080 | break; | | 1091 | break; |
1081 | default: | | 1092 | default: |
1082 | break; | | 1093 | break; |
1083 | } | | 1094 | } |
1084 | return error; | | 1095 | return error; |
1085 | } | | 1096 | } |
1086 | else | | 1097 | else |
1087 | ptr++; | | 1098 | ptr++; |
1088 | | | 1099 | |
1089 | return LINUX_SYS_PTRACE_ARCH(l, uap, retval); | | 1100 | return LINUX_SYS_PTRACE_ARCH(l, uap, retval); |
1090 | } | | 1101 | } |
1091 | | | 1102 | |
1092 | int | | 1103 | int |
1093 | linux_sys_reboot(struct lwp *l, const struct linux_sys_reboot_args *uap, register_t *retval) | | 1104 | linux_sys_reboot(struct lwp *l, const struct linux_sys_reboot_args *uap, register_t *retval) |
1094 | { | | 1105 | { |
1095 | /* { | | 1106 | /* { |
1096 | syscallarg(int) magic1; | | 1107 | syscallarg(int) magic1; |
1097 | syscallarg(int) magic2; | | 1108 | syscallarg(int) magic2; |
1098 | syscallarg(int) cmd; | | 1109 | syscallarg(int) cmd; |
1099 | syscallarg(void *) arg; | | 1110 | syscallarg(void *) arg; |
1100 | } */ | | 1111 | } */ |
1101 | struct sys_reboot_args /* { | | 1112 | struct sys_reboot_args /* { |
1102 | syscallarg(int) opt; | | 1113 | syscallarg(int) opt; |
1103 | syscallarg(char *) bootstr; | | 1114 | syscallarg(char *) bootstr; |
1104 | } */ sra; | | 1115 | } */ sra; |
1105 | int error; | | 1116 | int error; |
1106 | | | 1117 | |
1107 | if ((error = kauth_authorize_system(l->l_cred, | | 1118 | if ((error = kauth_authorize_system(l->l_cred, |
1108 | KAUTH_SYSTEM_REBOOT, 0, NULL, NULL, NULL)) != 0) | | 1119 | KAUTH_SYSTEM_REBOOT, 0, NULL, NULL, NULL)) != 0) |
1109 | return(error); | | 1120 | return(error); |
1110 | | | 1121 | |
1111 | if (SCARG(uap, magic1) != LINUX_REBOOT_MAGIC1) | | 1122 | if (SCARG(uap, magic1) != LINUX_REBOOT_MAGIC1) |
1112 | return(EINVAL); | | 1123 | return(EINVAL); |
1113 | if (SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2 && | | 1124 | if (SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2 && |
1114 | SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2A && | | 1125 | SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2A && |
1115 | SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2B) | | 1126 | SCARG(uap, magic2) != LINUX_REBOOT_MAGIC2B) |
1116 | return(EINVAL); | | 1127 | return(EINVAL); |
1117 | | | 1128 | |
1118 | switch ((unsigned long)SCARG(uap, cmd)) { | | 1129 | switch ((unsigned long)SCARG(uap, cmd)) { |
1119 | case LINUX_REBOOT_CMD_RESTART: | | 1130 | case LINUX_REBOOT_CMD_RESTART: |
1120 | SCARG(&sra, opt) = RB_AUTOBOOT; | | 1131 | SCARG(&sra, opt) = RB_AUTOBOOT; |
1121 | break; | | 1132 | break; |
1122 | case LINUX_REBOOT_CMD_HALT: | | 1133 | case LINUX_REBOOT_CMD_HALT: |
1123 | SCARG(&sra, opt) = RB_HALT; | | 1134 | SCARG(&sra, opt) = RB_HALT; |
1124 | break; | | 1135 | break; |
1125 | case LINUX_REBOOT_CMD_POWER_OFF: | | 1136 | case LINUX_REBOOT_CMD_POWER_OFF: |
1126 | SCARG(&sra, opt) = RB_HALT|RB_POWERDOWN; | | 1137 | SCARG(&sra, opt) = RB_HALT|RB_POWERDOWN; |
1127 | break; | | 1138 | break; |
1128 | case LINUX_REBOOT_CMD_RESTART2: | | 1139 | case LINUX_REBOOT_CMD_RESTART2: |
1129 | /* Reboot with an argument. */ | | 1140 | /* Reboot with an argument. */ |
1130 | SCARG(&sra, opt) = RB_AUTOBOOT|RB_STRING; | | 1141 | SCARG(&sra, opt) = RB_AUTOBOOT|RB_STRING; |
1131 | SCARG(&sra, bootstr) = SCARG(uap, arg); | | 1142 | SCARG(&sra, bootstr) = SCARG(uap, arg); |
1132 | break; | | 1143 | break; |
1133 | case LINUX_REBOOT_CMD_CAD_ON: | | 1144 | case LINUX_REBOOT_CMD_CAD_ON: |
1134 | return(EINVAL); /* We don't implement ctrl-alt-delete */ | | 1145 | return(EINVAL); /* We don't implement ctrl-alt-delete */ |
1135 | case LINUX_REBOOT_CMD_CAD_OFF: | | 1146 | case LINUX_REBOOT_CMD_CAD_OFF: |
1136 | return(0); | | 1147 | return(0); |
1137 | default: | | 1148 | default: |
1138 | return(EINVAL); | | 1149 | return(EINVAL); |
1139 | } | | 1150 | } |
1140 | | | 1151 | |
1141 | return(sys_reboot(l, &sra, retval)); | | 1152 | return(sys_reboot(l, &sra, retval)); |
1142 | } | | 1153 | } |
1143 | | | 1154 | |
1144 | /* | | 1155 | /* |
1145 | * Copy of compat_12_sys_swapon(). | | 1156 | * Copy of compat_12_sys_swapon(). |
1146 | */ | | 1157 | */ |
1147 | int | | 1158 | int |
1148 | linux_sys_swapon(struct lwp *l, const struct linux_sys_swapon_args *uap, register_t *retval) | | 1159 | linux_sys_swapon(struct lwp *l, const struct linux_sys_swapon_args *uap, register_t *retval) |
1149 | { | | 1160 | { |
1150 | /* { | | 1161 | /* { |
1151 | syscallarg(const char *) name; | | 1162 | syscallarg(const char *) name; |
1152 | } */ | | 1163 | } */ |
1153 | struct sys_swapctl_args ua; | | 1164 | struct sys_swapctl_args ua; |
1154 | | | 1165 | |
1155 | SCARG(&ua, cmd) = SWAP_ON; | | 1166 | SCARG(&ua, cmd) = SWAP_ON; |
1156 | SCARG(&ua, arg) = (void *)__UNCONST(SCARG(uap, name)); | | 1167 | SCARG(&ua, arg) = (void *)__UNCONST(SCARG(uap, name)); |
1157 | SCARG(&ua, misc) = 0; /* priority */ | | 1168 | SCARG(&ua, misc) = 0; /* priority */ |
1158 | return (sys_swapctl(l, &ua, retval)); | | 1169 | return (sys_swapctl(l, &ua, retval)); |
1159 | } | | 1170 | } |
1160 | | | 1171 | |
1161 | /* | | 1172 | /* |
1162 | * Stop swapping to the file or block device specified by path. | | 1173 | * Stop swapping to the file or block device specified by path. |
1163 | */ | | 1174 | */ |
1164 | int | | 1175 | int |
1165 | linux_sys_swapoff(struct lwp *l, const struct linux_sys_swapoff_args *uap, register_t *retval) | | 1176 | linux_sys_swapoff(struct lwp *l, const struct linux_sys_swapoff_args *uap, register_t *retval) |
1166 | { | | 1177 | { |
1167 | /* { | | 1178 | /* { |
1168 | syscallarg(const char *) path; | | 1179 | syscallarg(const char *) path; |
1169 | } */ | | 1180 | } */ |
1170 | struct sys_swapctl_args ua; | | 1181 | struct sys_swapctl_args ua; |
1171 | | | 1182 | |
1172 | SCARG(&ua, cmd) = SWAP_OFF; | | 1183 | SCARG(&ua, cmd) = SWAP_OFF; |
1173 | SCARG(&ua, arg) = __UNCONST(SCARG(uap, path)); /*XXXUNCONST*/ | | 1184 | SCARG(&ua, arg) = __UNCONST(SCARG(uap, path)); /*XXXUNCONST*/ |
1174 | return (sys_swapctl(l, &ua, retval)); | | 1185 | return (sys_swapctl(l, &ua, retval)); |
1175 | } | | 1186 | } |
1176 | | | 1187 | |
1177 | /* | | 1188 | /* |
1178 | * Copy of compat_09_sys_setdomainname() | | 1189 | * Copy of compat_09_sys_setdomainname() |
1179 | */ | | 1190 | */ |
1180 | /* ARGSUSED */ | | 1191 | /* ARGSUSED */ |
1181 | int | | 1192 | int |
1182 | linux_sys_setdomainname(struct lwp *l, const struct linux_sys_setdomainname_args *uap, register_t *retval) | | 1193 | linux_sys_setdomainname(struct lwp *l, const struct linux_sys_setdomainname_args *uap, register_t *retval) |
1183 | { | | 1194 | { |
1184 | /* { | | 1195 | /* { |
1185 | syscallarg(char *) domainname; | | 1196 | syscallarg(char *) domainname; |
1186 | syscallarg(int) len; | | 1197 | syscallarg(int) len; |
1187 | } */ | | 1198 | } */ |
1188 | int name[2]; | | 1199 | int name[2]; |
1189 | | | 1200 | |
1190 | name[0] = CTL_KERN; | | 1201 | name[0] = CTL_KERN; |
1191 | name[1] = KERN_DOMAINNAME; | | 1202 | name[1] = KERN_DOMAINNAME; |
1192 | return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, domainname), | | 1203 | return (old_sysctl(&name[0], 2, 0, 0, SCARG(uap, domainname), |
1193 | SCARG(uap, len), l)); | | 1204 | SCARG(uap, len), l)); |
1194 | } | | 1205 | } |
1195 | | | 1206 | |
1196 | /* | | 1207 | /* |
1197 | * sysinfo() | | 1208 | * sysinfo() |
1198 | */ | | 1209 | */ |
1199 | /* ARGSUSED */ | | 1210 | /* ARGSUSED */ |
1200 | int | | 1211 | int |
1201 | linux_sys_sysinfo(struct lwp *l, const struct linux_sys_sysinfo_args *uap, register_t *retval) | | 1212 | linux_sys_sysinfo(struct lwp *l, const struct linux_sys_sysinfo_args *uap, register_t *retval) |
1202 | { | | 1213 | { |
1203 | /* { | | 1214 | /* { |
1204 | syscallarg(struct linux_sysinfo *) arg; | | 1215 | syscallarg(struct linux_sysinfo *) arg; |
1205 | } */ | | 1216 | } */ |
1206 | struct linux_sysinfo si; | | 1217 | struct linux_sysinfo si; |
1207 | struct loadavg *la; | | 1218 | struct loadavg *la; |
1208 | | | 1219 | |
1209 | si.uptime = time_uptime; | | 1220 | si.uptime = time_uptime; |
1210 | la = &averunnable; | | 1221 | la = &averunnable; |
1211 | si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; | | 1222 | si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
1212 | si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; | | 1223 | si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
1213 | si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; | | 1224 | si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale; |
1214 | si.totalram = ctob((u_long)physmem); | | 1225 | si.totalram = ctob((u_long)physmem); |
1215 | si.freeram = (u_long)uvmexp.free * uvmexp.pagesize; | | 1226 | si.freeram = (u_long)uvmexp.free * uvmexp.pagesize; |
1216 | si.sharedram = 0; /* XXX */ | | 1227 | si.sharedram = 0; /* XXX */ |
1217 | si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize; | | 1228 | si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize; |
1218 | si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize; | | 1229 | si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize; |
1219 | si.freeswap = | | 1230 | si.freeswap = |
1220 | (u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize; | | 1231 | (u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize; |
1221 | si.procs = nprocs; | | 1232 | si.procs = nprocs; |
1222 | | | 1233 | |
1223 | /* The following are only present in newer Linux kernels. */ | | 1234 | /* The following are only present in newer Linux kernels. */ |
1224 | si.totalbig = 0; | | 1235 | si.totalbig = 0; |
1225 | si.freebig = 0; | | 1236 | si.freebig = 0; |
1226 | si.mem_unit = 1; | | 1237 | si.mem_unit = 1; |
1227 | | | 1238 | |
1228 | return (copyout(&si, SCARG(uap, arg), sizeof si)); | | 1239 | return (copyout(&si, SCARG(uap, arg), sizeof si)); |
1229 | } | | 1240 | } |
1230 | | | 1241 | |
1231 | int | | 1242 | int |
1232 | linux_sys_getrlimit(struct lwp *l, const struct linux_sys_getrlimit_args *uap, register_t *retval) | | 1243 | linux_sys_getrlimit(struct lwp *l, const struct linux_sys_getrlimit_args *uap, register_t *retval) |
1233 | { | | 1244 | { |
1234 | /* { | | 1245 | /* { |
1235 | syscallarg(int) which; | | 1246 | syscallarg(int) which; |
1236 | # ifdef LINUX_LARGEFILE64 | | 1247 | # ifdef LINUX_LARGEFILE64 |
1237 | syscallarg(struct rlimit *) rlp; | | 1248 | syscallarg(struct rlimit *) rlp; |
1238 | # else | | 1249 | # else |
1239 | syscallarg(struct orlimit *) rlp; | | 1250 | syscallarg(struct orlimit *) rlp; |
1240 | # endif | | 1251 | # endif |
1241 | } */ | | 1252 | } */ |
1242 | # ifdef LINUX_LARGEFILE64 | | 1253 | # ifdef LINUX_LARGEFILE64 |
1243 | struct rlimit orl; | | 1254 | struct rlimit orl; |
1244 | # else | | 1255 | # else |
1245 | struct orlimit orl; | | 1256 | struct orlimit orl; |
1246 | # endif | | 1257 | # endif |
1247 | int which; | | 1258 | int which; |
1248 | | | 1259 | |
1249 | which = linux_to_bsd_limit(SCARG(uap, which)); | | 1260 | which = linux_to_bsd_limit(SCARG(uap, which)); |
1250 | if (which < 0) | | 1261 | if (which < 0) |
1251 | return -which; | | 1262 | return -which; |
1252 | | | 1263 | |
1253 | bsd_to_linux_rlimit(&orl, &l->l_proc->p_rlimit[which]); | | 1264 | bsd_to_linux_rlimit(&orl, &l->l_proc->p_rlimit[which]); |
1254 | | | 1265 | |
1255 | return copyout(&orl, SCARG(uap, rlp), sizeof(orl)); | | 1266 | return copyout(&orl, SCARG(uap, rlp), sizeof(orl)); |
1256 | } | | 1267 | } |
1257 | | | 1268 | |
1258 | int | | 1269 | int |
1259 | linux_sys_setrlimit(struct lwp *l, const struct linux_sys_setrlimit_args *uap, register_t *retval) | | 1270 | linux_sys_setrlimit(struct lwp *l, const struct linux_sys_setrlimit_args *uap, register_t *retval) |
1260 | { | | 1271 | { |
1261 | /* { | | 1272 | /* { |
1262 | syscallarg(int) which; | | 1273 | syscallarg(int) which; |
1263 | # ifdef LINUX_LARGEFILE64 | | 1274 | # ifdef LINUX_LARGEFILE64 |
1264 | syscallarg(struct rlimit *) rlp; | | 1275 | syscallarg(struct rlimit *) rlp; |
1265 | # else | | 1276 | # else |
1266 | syscallarg(struct orlimit *) rlp; | | 1277 | syscallarg(struct orlimit *) rlp; |
1267 | # endif | | 1278 | # endif |
1268 | } */ | | 1279 | } */ |
1269 | struct rlimit rl; | | 1280 | struct rlimit rl; |
1270 | # ifdef LINUX_LARGEFILE64 | | 1281 | # ifdef LINUX_LARGEFILE64 |
1271 | struct rlimit orl; | | 1282 | struct rlimit orl; |
1272 | # else | | 1283 | # else |
1273 | struct orlimit orl; | | 1284 | struct orlimit orl; |
1274 | # endif | | 1285 | # endif |
1275 | int error; | | 1286 | int error; |
1276 | int which; | | 1287 | int which; |
1277 | | | 1288 | |
1278 | if ((error = copyin(SCARG(uap, rlp), &orl, sizeof(orl))) != 0) | | 1289 | if ((error = copyin(SCARG(uap, rlp), &orl, sizeof(orl))) != 0) |
1279 | return error; | | 1290 | return error; |
1280 | | | 1291 | |
1281 | which = linux_to_bsd_limit(SCARG(uap, which)); | | 1292 | which = linux_to_bsd_limit(SCARG(uap, which)); |
1282 | if (which < 0) | | 1293 | if (which < 0) |
1283 | return -which; | | 1294 | return -which; |
1284 | | | 1295 | |
1285 | linux_to_bsd_rlimit(&rl, &orl); | | 1296 | linux_to_bsd_rlimit(&rl, &orl); |
1286 | return dosetrlimit(l, l->l_proc, which, &rl); | | 1297 | return dosetrlimit(l, l->l_proc, which, &rl); |
1287 | } | | 1298 | } |
1288 | | | 1299 | |
1289 | # if !defined(__mips__) && !defined(__amd64__) | | 1300 | # if !defined(__mips__) && !defined(__amd64__) |
1290 | /* XXX: this doesn't look 100% common, at least mips doesn't have it */ | | 1301 | /* XXX: this doesn't look 100% common, at least mips doesn't have it */ |
1291 | int | | 1302 | int |
1292 | linux_sys_ugetrlimit(struct lwp *l, const struct linux_sys_ugetrlimit_args *uap, register_t *retval) | | 1303 | linux_sys_ugetrlimit(struct lwp *l, const struct linux_sys_ugetrlimit_args *uap, register_t *retval) |
1293 | { | | 1304 | { |
1294 | return linux_sys_getrlimit(l, (const void *)uap, retval); | | 1305 | return linux_sys_getrlimit(l, (const void *)uap, retval); |
1295 | } | | 1306 | } |
1296 | # endif | | 1307 | # endif |
1297 | | | 1308 | |
1298 | /* | | 1309 | /* |
1299 | * This gets called for unsupported syscalls. The difference to sys_nosys() | | 1310 | * This gets called for unsupported syscalls. The difference to sys_nosys() |
1300 | * is that process does not get SIGSYS, the call just returns with ENOSYS. | | 1311 | * is that process does not get SIGSYS, the call just returns with ENOSYS. |
1301 | * This is the way Linux does it and glibc depends on this behaviour. | | 1312 | * This is the way Linux does it and glibc depends on this behaviour. |
1302 | */ | | 1313 | */ |
1303 | int | | 1314 | int |
1304 | linux_sys_nosys(struct lwp *l, const void *v, register_t *retval) | | 1315 | linux_sys_nosys(struct lwp *l, const void *v, register_t *retval) |
1305 | { | | 1316 | { |
1306 | return (ENOSYS); | | 1317 | return (ENOSYS); |
1307 | } | | 1318 | } |
1308 | | | 1319 | |
1309 | int | | 1320 | int |
1310 | linux_sys_getpriority(struct lwp *l, const struct linux_sys_getpriority_args *uap, register_t *retval) | | 1321 | linux_sys_getpriority(struct lwp *l, const struct linux_sys_getpriority_args *uap, register_t *retval) |
1311 | { | | 1322 | { |
1312 | /* { | | 1323 | /* { |
1313 | syscallarg(int) which; | | 1324 | syscallarg(int) which; |
1314 | syscallarg(int) who; | | 1325 | syscallarg(int) who; |
1315 | } */ | | 1326 | } */ |
1316 | struct sys_getpriority_args bsa; | | 1327 | struct sys_getpriority_args bsa; |
1317 | int error; | | 1328 | int error; |
1318 | | | 1329 | |
1319 | SCARG(&bsa, which) = SCARG(uap, which); | | 1330 | SCARG(&bsa, which) = SCARG(uap, which); |
1320 | SCARG(&bsa, who) = SCARG(uap, who); | | 1331 | SCARG(&bsa, who) = SCARG(uap, who); |
1321 | | | 1332 | |
1322 | if ((error = sys_getpriority(l, &bsa, retval))) | | 1333 | if ((error = sys_getpriority(l, &bsa, retval))) |
1323 | return error; | | 1334 | return error; |
1324 | | | 1335 | |
1325 | *retval = NZERO - *retval; | | 1336 | *retval = NZERO - *retval; |
1326 | | | 1337 | |
1327 | return 0; | | 1338 | return 0; |
1328 | } | | 1339 | } |
1329 | #endif /* !COMPAT_LINUX32 */ | | 1340 | #endif /* !COMPAT_LINUX32 */ |