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linux_misc.c (346816) linux_misc.c (346832)
1/*-
2 * Copyright (c) 2002 Doug Rabson
3 * Copyright (c) 1994-1995 S��ren Schmidt
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 14 unchanged lines hidden (view full) ---

23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2002 Doug Rabson
3 * Copyright (c) 1994-1995 S��ren Schmidt
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 14 unchanged lines hidden (view full) ---

23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: stable/11/sys/compat/linux/linux_misc.c 346816 2019-04-28 13:19:28Z dchagin $");
31__FBSDID("$FreeBSD: stable/11/sys/compat/linux/linux_misc.c 346832 2019-04-28 14:03:32Z dchagin $");
32
33#include "opt_compat.h"
34
35#include <sys/param.h>
36#include <sys/blist.h>
37#include <sys/fcntl.h>
38#if defined(__i386__)
39#include <sys/imgact_aout.h>

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184 /* The following are only present in newer Linux kernels. */
185 sysinfo.totalbig = 0;
186 sysinfo.freebig = 0;
187 sysinfo.mem_unit = 1;
188
189 return (copyout(&sysinfo, args->info, sizeof(sysinfo)));
190}
191
32
33#include "opt_compat.h"
34
35#include <sys/param.h>
36#include <sys/blist.h>
37#include <sys/fcntl.h>
38#if defined(__i386__)
39#include <sys/imgact_aout.h>

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184 /* The following are only present in newer Linux kernels. */
185 sysinfo.totalbig = 0;
186 sysinfo.freebig = 0;
187 sysinfo.mem_unit = 1;
188
189 return (copyout(&sysinfo, args->info, sizeof(sysinfo)));
190}
191
192#ifdef LINUX_LEGACY_SYSCALLS
192int
193linux_alarm(struct thread *td, struct linux_alarm_args *args)
194{
195 struct itimerval it, old_it;
196 u_int secs;
197 int error;
198
199#ifdef DEBUG

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218 KASSERT(error == 0, ("kern_setitimer returns %d", error));
219
220 if ((old_it.it_value.tv_sec == 0 && old_it.it_value.tv_usec > 0) ||
221 old_it.it_value.tv_usec >= 500000)
222 old_it.it_value.tv_sec++;
223 td->td_retval[0] = old_it.it_value.tv_sec;
224 return (0);
225}
193int
194linux_alarm(struct thread *td, struct linux_alarm_args *args)
195{
196 struct itimerval it, old_it;
197 u_int secs;
198 int error;
199
200#ifdef DEBUG

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219 KASSERT(error == 0, ("kern_setitimer returns %d", error));
220
221 if ((old_it.it_value.tv_sec == 0 && old_it.it_value.tv_usec > 0) ||
222 old_it.it_value.tv_usec >= 500000)
223 old_it.it_value.tv_sec++;
224 td->td_retval[0] = old_it.it_value.tv_sec;
225 return (0);
226}
227#endif
226
227int
228linux_brk(struct thread *td, struct linux_brk_args *args)
229{
230 struct vmspace *vm = td->td_proc->p_vmspace;
231 vm_offset_t new, old;
232 struct obreak_args /* {
233 char * nsize;

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487 if (a_out)
488 kmap_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE);
489
490 return (error);
491}
492
493#endif /* __i386__ */
494
228
229int
230linux_brk(struct thread *td, struct linux_brk_args *args)
231{
232 struct vmspace *vm = td->td_proc->p_vmspace;
233 vm_offset_t new, old;
234 struct obreak_args /* {
235 char * nsize;

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489 if (a_out)
490 kmap_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE);
491
492 return (error);
493}
494
495#endif /* __i386__ */
496
497#ifdef LINUX_LEGACY_SYSCALLS
495int
496linux_select(struct thread *td, struct linux_select_args *args)
497{
498 l_timeval ltv;
499 struct timeval tv0, tv1, utv, *tvp;
500 int error;
501
502#ifdef DEBUG

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578
579select_out:
580#ifdef DEBUG
581 if (ldebug(select))
582 printf(LMSG("select_out -> %d"), error);
583#endif
584 return (error);
585}
498int
499linux_select(struct thread *td, struct linux_select_args *args)
500{
501 l_timeval ltv;
502 struct timeval tv0, tv1, utv, *tvp;
503 int error;
504
505#ifdef DEBUG

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581
582select_out:
583#ifdef DEBUG
584 if (ldebug(select))
585 printf(LMSG("select_out -> %d"), error);
586#endif
587 return (error);
588}
589#endif
586
587int
588linux_mremap(struct thread *td, struct linux_mremap_args *args)
589{
590 uintptr_t addr;
591 size_t len;
592 int error = 0;
593

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639int
640linux_msync(struct thread *td, struct linux_msync_args *args)
641{
642
643 return (kern_msync(td, args->addr, args->len,
644 args->fl & ~LINUX_MS_SYNC));
645}
646
590
591int
592linux_mremap(struct thread *td, struct linux_mremap_args *args)
593{
594 uintptr_t addr;
595 size_t len;
596 int error = 0;
597

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643int
644linux_msync(struct thread *td, struct linux_msync_args *args)
645{
646
647 return (kern_msync(td, args->addr, args->len,
648 args->fl & ~LINUX_MS_SYNC));
649}
650
651#ifdef LINUX_LEGACY_SYSCALLS
647int
648linux_time(struct thread *td, struct linux_time_args *args)
649{
650 struct timeval tv;
651 l_time_t tm;
652 int error;
653
654#ifdef DEBUG
655 if (ldebug(time))
656 printf(ARGS(time, "*"));
657#endif
658
659 microtime(&tv);
660 tm = tv.tv_sec;
661 if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
662 return (error);
663 td->td_retval[0] = tm;
664 return (0);
665}
652int
653linux_time(struct thread *td, struct linux_time_args *args)
654{
655 struct timeval tv;
656 l_time_t tm;
657 int error;
658
659#ifdef DEBUG
660 if (ldebug(time))
661 printf(ARGS(time, "*"));
662#endif
663
664 microtime(&tv);
665 tm = tv.tv_sec;
666 if (args->tm && (error = copyout(&tm, args->tm, sizeof(tm))))
667 return (error);
668 td->td_retval[0] = tm;
669 return (0);
670}
671#endif
666
667struct l_times_argv {
668 l_clock_t tms_utime;
669 l_clock_t tms_stime;
670 l_clock_t tms_cutime;
671 l_clock_t tms_cstime;
672};
673

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754 return (copyout(&utsname, args->buf, sizeof(utsname)));
755}
756
757struct l_utimbuf {
758 l_time_t l_actime;
759 l_time_t l_modtime;
760};
761
672
673struct l_times_argv {
674 l_clock_t tms_utime;
675 l_clock_t tms_stime;
676 l_clock_t tms_cutime;
677 l_clock_t tms_cstime;
678};
679

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760 return (copyout(&utsname, args->buf, sizeof(utsname)));
761}
762
763struct l_utimbuf {
764 l_time_t l_actime;
765 l_time_t l_modtime;
766};
767
768#ifdef LINUX_LEGACY_SYSCALLS
762int
763linux_utime(struct thread *td, struct linux_utime_args *args)
764{
765 struct timeval tv[2], *tvp;
766 struct l_utimbuf lut;
767 char *fname;
768 int error;
769

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787 } else
788 tvp = NULL;
789
790 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE, tvp,
791 UIO_SYSSPACE);
792 LFREEPATH(fname);
793 return (error);
794}
769int
770linux_utime(struct thread *td, struct linux_utime_args *args)
771{
772 struct timeval tv[2], *tvp;
773 struct l_utimbuf lut;
774 char *fname;
775 int error;
776

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794 } else
795 tvp = NULL;
796
797 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE, tvp,
798 UIO_SYSSPACE);
799 LFREEPATH(fname);
800 return (error);
801}
802#endif
795
803
804#ifdef LINUX_LEGACY_SYSCALLS
796int
797linux_utimes(struct thread *td, struct linux_utimes_args *args)
798{
799 l_timeval ltv[2];
800 struct timeval tv[2], *tvp = NULL;
801 char *fname;
802 int error;
803

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820 tvp = tv;
821 }
822
823 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE,
824 tvp, UIO_SYSSPACE);
825 LFREEPATH(fname);
826 return (error);
827}
805int
806linux_utimes(struct thread *td, struct linux_utimes_args *args)
807{
808 l_timeval ltv[2];
809 struct timeval tv[2], *tvp = NULL;
810 char *fname;
811 int error;
812

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829 tvp = tv;
830 }
831
832 error = kern_utimesat(td, AT_FDCWD, fname, UIO_SYSSPACE,
833 tvp, UIO_SYSSPACE);
834 LFREEPATH(fname);
835 return (error);
836}
837#endif
828
829static int
830linux_utimensat_nsec_valid(l_long nsec)
831{
832
833 if (nsec == LINUX_UTIME_OMIT || nsec == LINUX_UTIME_NOW)
834 return (0);
835 if (nsec >= 0 && nsec <= 999999999)

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914 error = kern_utimensat(td, dfd, path, UIO_SYSSPACE, timesp,
915 UIO_SYSSPACE, flags);
916 LFREEPATH(path);
917 }
918
919 return (error);
920}
921
838
839static int
840linux_utimensat_nsec_valid(l_long nsec)
841{
842
843 if (nsec == LINUX_UTIME_OMIT || nsec == LINUX_UTIME_NOW)
844 return (0);
845 if (nsec >= 0 && nsec <= 999999999)

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924 error = kern_utimensat(td, dfd, path, UIO_SYSSPACE, timesp,
925 UIO_SYSSPACE, flags);
926 LFREEPATH(path);
927 }
928
929 return (error);
930}
931
932#ifdef LINUX_LEGACY_SYSCALLS
922int
923linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
924{
925 l_timeval ltv[2];
926 struct timeval tv[2], *tvp = NULL;
927 char *fname;
928 int error, dfd;
929

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946 tv[1].tv_usec = ltv[1].tv_usec;
947 tvp = tv;
948 }
949
950 error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
951 LFREEPATH(fname);
952 return (error);
953}
933int
934linux_futimesat(struct thread *td, struct linux_futimesat_args *args)
935{
936 l_timeval ltv[2];
937 struct timeval tv[2], *tvp = NULL;
938 char *fname;
939 int error, dfd;
940

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957 tv[1].tv_usec = ltv[1].tv_usec;
958 tvp = tv;
959 }
960
961 error = kern_utimesat(td, dfd, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
962 LFREEPATH(fname);
963 return (error);
964}
965#endif
954
955int
956linux_common_wait(struct thread *td, int pid, int *status,
957 int options, struct rusage *ru)
958{
959 int error, tmpstat;
960
961 error = kern_wait(td, pid, &tmpstat, options, ru);

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1086 }
1087 error = copyout(&lsi, args->info, sizeof(lsi));
1088 }
1089 td->td_retval[0] = 0;
1090
1091 return (error);
1092}
1093
966
967int
968linux_common_wait(struct thread *td, int pid, int *status,
969 int options, struct rusage *ru)
970{
971 int error, tmpstat;
972
973 error = kern_wait(td, pid, &tmpstat, options, ru);

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1098 }
1099 error = copyout(&lsi, args->info, sizeof(lsi));
1100 }
1101 td->td_retval[0] = 0;
1102
1103 return (error);
1104}
1105
1106#ifdef LINUX_LEGACY_SYSCALLS
1094int
1095linux_mknod(struct thread *td, struct linux_mknod_args *args)
1096{
1097 char *path;
1098 int error;
1099
1100 LCONVPATHCREAT(td, args->path, &path);
1101

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1134
1135 default:
1136 error = EINVAL;
1137 break;
1138 }
1139 LFREEPATH(path);
1140 return (error);
1141}
1107int
1108linux_mknod(struct thread *td, struct linux_mknod_args *args)
1109{
1110 char *path;
1111 int error;
1112
1113 LCONVPATHCREAT(td, args->path, &path);
1114

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1147
1148 default:
1149 error = EINVAL;
1150 break;
1151 }
1152 LFREEPATH(path);
1153 return (error);
1154}
1155#endif
1142
1143int
1144linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
1145{
1146 char *path;
1147 int error, dfd;
1148
1149 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;

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1157int
1158linux_mknodat(struct thread *td, struct linux_mknodat_args *args)
1159{
1160 char *path;
1161 int error, dfd;
1162
1163 dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd;

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