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-rw-r--r--crypto/heimdal/lib/kafs/afssys.c562
1 files changed, 0 insertions, 562 deletions
diff --git a/crypto/heimdal/lib/kafs/afssys.c b/crypto/heimdal/lib/kafs/afssys.c
deleted file mode 100644
index d9c6b80..0000000
--- a/crypto/heimdal/lib/kafs/afssys.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/*
- * Copyright (c) 1995 - 2000, 2002, 2004, 2005 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the Institute nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "kafs_locl.h"
-
-RCSID("$Id: afssys.c 17050 2006-04-11 08:12:29Z lha $");
-
-struct procdata {
- unsigned long param4;
- unsigned long param3;
- unsigned long param2;
- unsigned long param1;
- unsigned long syscall;
-};
-#define VIOC_SYSCALL_PROC _IOW('C', 1, void *)
-
-struct devdata {
- unsigned long syscall;
- unsigned long param1;
- unsigned long param2;
- unsigned long param3;
- unsigned long param4;
- unsigned long param5;
- unsigned long param6;
- unsigned long retval;
-};
-#define VIOC_SYSCALL_DEV _IOWR('C', 2, struct devdata)
-#define VIOC_SYSCALL_DEV_OPENAFS _IOWR('C', 1, struct devdata)
-
-
-int _kafs_debug; /* this should be done in a better way */
-
-#define UNKNOWN_ENTRY_POINT (-1)
-#define NO_ENTRY_POINT 0
-#define SINGLE_ENTRY_POINT 1
-#define MULTIPLE_ENTRY_POINT 2
-#define SINGLE_ENTRY_POINT2 3
-#define SINGLE_ENTRY_POINT3 4
-#define LINUX_PROC_POINT 5
-#define AIX_ENTRY_POINTS 6
-#define MACOS_DEV_POINT 7
-
-static int afs_entry_point = UNKNOWN_ENTRY_POINT;
-static int afs_syscalls[2];
-static char *afs_ioctlpath;
-static unsigned long afs_ioctlnum;
-
-/* Magic to get AIX syscalls to work */
-#ifdef _AIX
-
-static int (*Pioctl)(char*, int, struct ViceIoctl*, int);
-static int (*Setpag)(void);
-
-#include "dlfcn.h"
-
-/*
- *
- */
-
-static int
-try_aix(void)
-{
-#ifdef STATIC_AFS_SYSCALLS
- Pioctl = aix_pioctl;
- Setpag = aix_setpag;
-#else
- void *ptr;
- char path[MaxPathLen], *p;
- /*
- * If we are root or running setuid don't trust AFSLIBPATH!
- */
- if (getuid() != 0 && !issuid() && (p = getenv("AFSLIBPATH")) != NULL)
- strlcpy(path, p, sizeof(path));
- else
- snprintf(path, sizeof(path), "%s/afslib.so", LIBDIR);
-
- ptr = dlopen(path, RTLD_NOW);
- if(ptr == NULL) {
- if(_kafs_debug) {
- if(errno == ENOEXEC && (p = dlerror()) != NULL)
- fprintf(stderr, "dlopen(%s): %s\n", path, p);
- else if (errno != ENOENT)
- fprintf(stderr, "dlopen(%s): %s\n", path, strerror(errno));
- }
- return 1;
- }
- Setpag = (int (*)(void))dlsym(ptr, "aix_setpag");
- Pioctl = (int (*)(char*, int,
- struct ViceIoctl*, int))dlsym(ptr, "aix_pioctl");
-#endif
- afs_entry_point = AIX_ENTRY_POINTS;
- return 0;
-}
-#endif /* _AIX */
-
-/*
- * This probably only works under Solaris and could get confused if
- * there's a /etc/name_to_sysnum file.
- */
-
-#if defined(AFS_SYSCALL) || defined(AFS_SYSCALL2) || defined(AFS_SYSCALL3)
-
-#define _PATH_ETC_NAME_TO_SYSNUM "/etc/name_to_sysnum"
-
-static int
-map_syscall_name_to_number (const char *str, int *res)
-{
- FILE *f;
- char buf[256];
- size_t str_len = strlen (str);
-
- f = fopen (_PATH_ETC_NAME_TO_SYSNUM, "r");
- if (f == NULL)
- return -1;
- while (fgets (buf, sizeof(buf), f) != NULL) {
- if (buf[0] == '#')
- continue;
-
- if (strncmp (str, buf, str_len) == 0) {
- char *begptr = buf + str_len;
- char *endptr;
- long val = strtol (begptr, &endptr, 0);
-
- if (val != 0 && endptr != begptr) {
- fclose (f);
- *res = val;
- return 0;
- }
- }
- }
- fclose (f);
- return -1;
-}
-#endif
-
-static int
-try_ioctlpath(const char *path, unsigned long ioctlnum, int entrypoint)
-{
- int fd, ret, saved_errno;
-
- fd = open(path, O_RDWR);
- if (fd < 0)
- return 1;
- switch (entrypoint) {
- case LINUX_PROC_POINT: {
- struct procdata data = { 0, 0, 0, 0, AFSCALL_PIOCTL };
- data.param2 = (unsigned long)VIOCGETTOK;
- ret = ioctl(fd, ioctlnum, &data);
- break;
- }
- case MACOS_DEV_POINT: {
- struct devdata data = { AFSCALL_PIOCTL, 0, 0, 0, 0, 0, 0, 0 };
- data.param2 = (unsigned long)VIOCGETTOK;
- ret = ioctl(fd, ioctlnum, &data);
- break;
- }
- default:
- abort();
- }
- saved_errno = errno;
- close(fd);
- /*
- * Be quite liberal in what error are ok, the first is the one
- * that should trigger given that params is NULL.
- */
- if (ret &&
- (saved_errno != EFAULT &&
- saved_errno != EDOM &&
- saved_errno != ENOTCONN))
- return 1;
- afs_ioctlnum = ioctlnum;
- afs_ioctlpath = strdup(path);
- if (afs_ioctlpath == NULL)
- return 1;
- afs_entry_point = entrypoint;
- return 0;
-}
-
-static int
-do_ioctl(void *data)
-{
- int fd, ret, saved_errno;
- fd = open(afs_ioctlpath, O_RDWR);
- if (fd < 0) {
- errno = EINVAL;
- return -1;
- }
- ret = ioctl(fd, afs_ioctlnum, data);
- saved_errno = errno;
- close(fd);
- errno = saved_errno;
- return ret;
-}
-
-int
-k_pioctl(char *a_path,
- int o_opcode,
- struct ViceIoctl *a_paramsP,
- int a_followSymlinks)
-{
-#ifndef NO_AFS
- switch(afs_entry_point){
-#if defined(AFS_SYSCALL) || defined(AFS_SYSCALL2) || defined(AFS_SYSCALL3)
- case SINGLE_ENTRY_POINT:
- case SINGLE_ENTRY_POINT2:
- case SINGLE_ENTRY_POINT3:
- return syscall(afs_syscalls[0], AFSCALL_PIOCTL,
- a_path, o_opcode, a_paramsP, a_followSymlinks);
-#endif
-#if defined(AFS_PIOCTL)
- case MULTIPLE_ENTRY_POINT:
- return syscall(afs_syscalls[0],
- a_path, o_opcode, a_paramsP, a_followSymlinks);
-#endif
- case LINUX_PROC_POINT: {
- struct procdata data = { 0, 0, 0, 0, AFSCALL_PIOCTL };
- data.param1 = (unsigned long)a_path;
- data.param2 = (unsigned long)o_opcode;
- data.param3 = (unsigned long)a_paramsP;
- data.param4 = (unsigned long)a_followSymlinks;
- return do_ioctl(&data);
- }
- case MACOS_DEV_POINT: {
- struct devdata data = { AFSCALL_PIOCTL, 0, 0, 0, 0, 0, 0, 0 };
- int ret;
-
- data.param1 = (unsigned long)a_path;
- data.param2 = (unsigned long)o_opcode;
- data.param3 = (unsigned long)a_paramsP;
- data.param4 = (unsigned long)a_followSymlinks;
-
- ret = do_ioctl(&data);
- if (ret)
- return ret;
-
- return data.retval;
- }
-#ifdef _AIX
- case AIX_ENTRY_POINTS:
- return Pioctl(a_path, o_opcode, a_paramsP, a_followSymlinks);
-#endif
- }
- errno = ENOSYS;
-#ifdef SIGSYS
- kill(getpid(), SIGSYS); /* You lose! */
-#endif
-#endif /* NO_AFS */
- return -1;
-}
-
-int
-k_afs_cell_of_file(const char *path, char *cell, int len)
-{
- struct ViceIoctl parms;
- parms.in = NULL;
- parms.in_size = 0;
- parms.out = cell;
- parms.out_size = len;
- return k_pioctl(rk_UNCONST(path), VIOC_FILE_CELL_NAME, &parms, 1);
-}
-
-int
-k_unlog(void)
-{
- struct ViceIoctl parms;
- memset(&parms, 0, sizeof(parms));
- return k_pioctl(0, VIOCUNLOG, &parms, 0);
-}
-
-int
-k_setpag(void)
-{
-#ifndef NO_AFS
- switch(afs_entry_point){
-#if defined(AFS_SYSCALL) || defined(AFS_SYSCALL2) || defined(AFS_SYSCALL3)
- case SINGLE_ENTRY_POINT:
- case SINGLE_ENTRY_POINT2:
- case SINGLE_ENTRY_POINT3:
- return syscall(afs_syscalls[0], AFSCALL_SETPAG);
-#endif
-#if defined(AFS_PIOCTL)
- case MULTIPLE_ENTRY_POINT:
- return syscall(afs_syscalls[1]);
-#endif
- case LINUX_PROC_POINT: {
- struct procdata data = { 0, 0, 0, 0, AFSCALL_SETPAG };
- return do_ioctl(&data);
- }
- case MACOS_DEV_POINT: {
- struct devdata data = { AFSCALL_SETPAG, 0, 0, 0, 0, 0, 0, 0 };
- int ret = do_ioctl(&data);
- if (ret)
- return ret;
- return data.retval;
- }
-#ifdef _AIX
- case AIX_ENTRY_POINTS:
- return Setpag();
-#endif
- }
-
- errno = ENOSYS;
-#ifdef SIGSYS
- kill(getpid(), SIGSYS); /* You lose! */
-#endif
-#endif /* NO_AFS */
- return -1;
-}
-
-static jmp_buf catch_SIGSYS;
-
-#ifdef SIGSYS
-
-static RETSIGTYPE
-SIGSYS_handler(int sig)
-{
- errno = 0;
- signal(SIGSYS, SIGSYS_handler); /* Need to reinstall handler on SYSV */
- longjmp(catch_SIGSYS, 1);
-}
-
-#endif
-
-/*
- * Try to see if `syscall' is a pioctl. Return 0 iff succesful.
- */
-
-#if defined(AFS_SYSCALL) || defined(AFS_SYSCALL2) || defined(AFS_SYSCALL3)
-static int
-try_one (int syscall_num)
-{
- struct ViceIoctl parms;
- memset(&parms, 0, sizeof(parms));
-
- if (setjmp(catch_SIGSYS) == 0) {
- syscall(syscall_num, AFSCALL_PIOCTL,
- 0, VIOCSETTOK, &parms, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
- if (errno == EINVAL) {
- afs_entry_point = SINGLE_ENTRY_POINT;
- afs_syscalls[0] = syscall_num;
- return 0;
- }
- }
- return 1;
-}
-#endif
-
-/*
- * Try to see if `syscall_pioctl' is a pioctl syscall. Return 0 iff
- * succesful.
- *
- */
-
-#ifdef AFS_PIOCTL
-static int
-try_two (int syscall_pioctl, int syscall_setpag)
-{
- struct ViceIoctl parms;
- memset(&parms, 0, sizeof(parms));
-
- if (setjmp(catch_SIGSYS) == 0) {
- syscall(syscall_pioctl,
- 0, VIOCSETTOK, &parms, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
- if (errno == EINVAL) {
- afs_entry_point = MULTIPLE_ENTRY_POINT;
- afs_syscalls[0] = syscall_pioctl;
- afs_syscalls[1] = syscall_setpag;
- return 0;
- }
- }
- return 1;
-}
-#endif
-
-int
-k_hasafs(void)
-{
-#if !defined(NO_AFS) && defined(SIGSYS)
- RETSIGTYPE (*saved_func)(int);
-#endif
- int saved_errno, ret;
- char *env = NULL;
-
- if (!issuid())
- env = getenv ("AFS_SYSCALL");
-
- /*
- * Already checked presence of AFS syscalls?
- */
- if (afs_entry_point != UNKNOWN_ENTRY_POINT)
- return afs_entry_point != NO_ENTRY_POINT;
-
- /*
- * Probe kernel for AFS specific syscalls,
- * they (currently) come in two flavors.
- * If the syscall is absent we recive a SIGSYS.
- */
- afs_entry_point = NO_ENTRY_POINT;
-
- saved_errno = errno;
-#ifndef NO_AFS
-#ifdef SIGSYS
- saved_func = signal(SIGSYS, SIGSYS_handler);
-#endif
- if (env && strstr(env, "..") == NULL) {
-
- if (strncmp("/proc/", env, 6) == 0) {
- if (try_ioctlpath(env, VIOC_SYSCALL_PROC, LINUX_PROC_POINT) == 0)
- goto done;
- }
- if (strncmp("/dev/", env, 5) == 0) {
- if (try_ioctlpath(env, VIOC_SYSCALL_DEV, MACOS_DEV_POINT) == 0)
- goto done;
- if (try_ioctlpath(env,VIOC_SYSCALL_DEV_OPENAFS,MACOS_DEV_POINT) ==0)
- goto done;
- }
- }
-
- ret = try_ioctlpath("/proc/fs/openafs/afs_ioctl",
- VIOC_SYSCALL_PROC, LINUX_PROC_POINT);
- if (ret == 0)
- goto done;
- ret = try_ioctlpath("/proc/fs/nnpfs/afs_ioctl",
- VIOC_SYSCALL_PROC, LINUX_PROC_POINT);
- if (ret == 0)
- goto done;
-
- ret = try_ioctlpath("/dev/openafs_ioctl",
- VIOC_SYSCALL_DEV_OPENAFS, MACOS_DEV_POINT);
- if (ret == 0)
- goto done;
- ret = try_ioctlpath("/dev/nnpfs_ioctl", VIOC_SYSCALL_DEV, MACOS_DEV_POINT);
- if (ret == 0)
- goto done;
-
-#if defined(AFS_SYSCALL) || defined(AFS_SYSCALL2) || defined(AFS_SYSCALL3)
- {
- int tmp;
-
- if (env != NULL) {
- if (sscanf (env, "%d", &tmp) == 1) {
- if (try_one (tmp) == 0)
- goto done;
- } else {
- char *end = NULL;
- char *p;
- char *s = strdup (env);
-
- if (s != NULL) {
- for (p = strtok_r (s, ",", &end);
- p != NULL;
- p = strtok_r (NULL, ",", &end)) {
- if (map_syscall_name_to_number (p, &tmp) == 0)
- if (try_one (tmp) == 0) {
- free (s);
- goto done;
- }
- }
- free (s);
- }
- }
- }
- }
-#endif /* AFS_SYSCALL || AFS_SYSCALL2 || AFS_SYSCALL3 */
-
-#ifdef AFS_SYSCALL
- if (try_one (AFS_SYSCALL) == 0)
- goto done;
-#endif /* AFS_SYSCALL */
-
-#ifdef AFS_PIOCTL
- {
- int tmp[2];
-
- if (env != NULL && sscanf (env, "%d%d", &tmp[0], &tmp[1]) == 2)
- if (try_two (tmp[0], tmp[1]) == 2)
- goto done;
- }
-#endif /* AFS_PIOCTL */
-
-#ifdef AFS_PIOCTL
- if (try_two (AFS_PIOCTL, AFS_SETPAG) == 0)
- goto done;
-#endif /* AFS_PIOCTL */
-
-#ifdef AFS_SYSCALL2
- if (try_one (AFS_SYSCALL2) == 0)
- goto done;
-#endif /* AFS_SYSCALL2 */
-
-#ifdef AFS_SYSCALL3
- if (try_one (AFS_SYSCALL3) == 0)
- goto done;
-#endif /* AFS_SYSCALL3 */
-
-#ifdef _AIX
-#if 0
- if (env != NULL) {
- char *pos = NULL;
- char *pioctl_name;
- char *setpag_name;
-
- pioctl_name = strtok_r (env, ", \t", &pos);
- if (pioctl_name != NULL) {
- setpag_name = strtok_r (NULL, ", \t", &pos);
- if (setpag_name != NULL)
- if (try_aix (pioctl_name, setpag_name) == 0)
- goto done;
- }
- }
-#endif
-
- if(try_aix() == 0)
- goto done;
-#endif
-
-
-done:
-#ifdef SIGSYS
- signal(SIGSYS, saved_func);
-#endif
-#endif /* NO_AFS */
- errno = saved_errno;
- return afs_entry_point != NO_ENTRY_POINT;
-}
-
-int
-k_hasafs_recheck(void)
-{
- afs_entry_point = UNKNOWN_ENTRY_POINT;
- return k_hasafs();
-}
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