+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#include <byteswap.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <malloc.h>
-#include <netdb.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <sys/syscall.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/utsname.h>
-#include <libcfs/libcfs.h>
-#include <lustre/lustre_idl.h>
-#include <liblustre.h>
-#include <lnet/lnet.h>
-#include <lustre_dlm.h>
-#include "lutil.h"
-
-struct task_struct *current;
-
-/*
- * random number generator stuff
- */
-
-#ifdef HAVE_GETHOSTBYNAME
-static int get_ipv4_addr()
-{
- struct utsname myname;
- struct hostent *hptr;
- int ip;
-
- if (uname(&myname) < 0)
- return 0;
-
- hptr = gethostbyname(myname.nodename);
- if (hptr == NULL ||
- hptr->h_addrtype != AF_INET ||
- *hptr->h_addr_list == NULL) {
- CWARN("Warning: fail to get local IPv4 address\n");
- return 0;
- }
-
- ip = ntohl(*((int *) *hptr->h_addr_list));
-
- return ip;
-}
-#endif
-
-void liblustre_init_random()
-{
- int seed[2];
- struct timeval tv;
-
-#ifdef LIBLUSTRE_USE_URANDOM
- int _rand_dev_fd;
- _rand_dev_fd = syscall(SYS_open, "/dev/urandom", O_RDONLY);
- if (_rand_dev_fd >= 0) {
- if (syscall(SYS_read, _rand_dev_fd,
- &seed, sizeof(seed)) == sizeof(seed)) {
- cfs_srand(seed[0], seed[1]);
- syscall(SYS_close, _rand_dev_fd);
- return;
- }
- syscall(SYS_close, _rand_dev_fd);
- }
-#endif /* LIBLUSTRE_USE_URANDOM */
-
-#ifdef HAVE_GETHOSTBYNAME
- seed[0] = get_ipv4_addr();
-#else
- seed[0] = _my_pnid;
-#endif
- gettimeofday(&tv, NULL);
- cfs_srand(tv.tv_sec ^ __swab32(seed[0]), tv.tv_usec ^__swab32(getpid()));
-}
-
-static void init_capability(__u32 *res)
-{
-#ifdef HAVE_LIBCAP
- cap_t syscap;
- cap_flag_value_t capval;
- int i;
-
- *res = 0;
-
- syscap = cap_get_proc();
- if (!syscap) {
- CWARN("Warning: failed to get system capability, "
- "set to minimal\n");
- return;
- }
-
- for (i = 0; i < sizeof(cap_value_t) * 8; i++) {
- if (!cap_get_flag(syscap, i, CAP_EFFECTIVE, &capval)) {
- if (capval == CAP_SET) {
- *res |= 1 << i;
- }
- }
- }
-#else
- /*
- * set fake cap flags to ship to linux server
- * from client platforms that have none (eg. catamount)
- * full capability for root
- * no capability for anybody else
- */
-#define FAKE_ROOT_CAP 0x1ffffeff
-#define FAKE_USER_CAP 0
-
- *res = (current->fsuid == 0) ? FAKE_ROOT_CAP: FAKE_USER_CAP;
-#endif
-}
-
-int in_group_p(gid_t gid)
-{
- int i;
-
- if (gid == current->fsgid)
- return 1;
-
- for (i = 0; i < current->ngroups; i++) {
- if (gid == current->groups[i])
- return 1;
- }
-
- return 0;
-}
-
-int liblustre_init_current(char *comm)
-{
- current = malloc(sizeof(*current));
- if (!current) {
- CERROR("Not enough memory\n");
- return -ENOMEM;
- }
-
- strncpy(current->comm, comm, sizeof(current->comm));
- current->pid = getpid();
- current->gid = getgid();
- current->fsuid = geteuid();
- current->fsgid = getegid();
-
- current->max_groups = sysconf(_SC_NGROUPS_MAX);
- current->groups = malloc(sizeof(gid_t) * current->max_groups);
- if (!current->groups) {
- CERROR("Not enough memory\n");
- return -ENOMEM;
- }
- current->ngroups = getgroups(current->max_groups, current->groups);
- if (current->ngroups < 0) {
- perror("Error getgroups");
- return -EINVAL;
- }
-
- init_capability(¤t->cap_effective);
-
- return 0;
-}
-
-void cfs_cap_raise(cfs_cap_t cap)
-{
- current->cap_effective |= (1 << cap);
-}
-
-void cfs_cap_lower(cfs_cap_t cap)
-{
- current->cap_effective &= ~(1 << cap);
-}
-
-int cfs_cap_raised(cfs_cap_t cap)
-{
- return current->cap_effective & (1 << cap);
-}
-
-cfs_cap_t cfs_curproc_cap_pack(void) {
- return current->cap_effective;
-}
-
-void cfs_curproc_cap_unpack(cfs_cap_t cap) {
- current->cap_effective = cap;
-}
-
-int cfs_capable(cfs_cap_t cap)
-{
- return cfs_cap_raised(cap);
-}
-
-int init_lib_portals()
-{
- int rc;
- ENTRY;
-
- rc = libcfs_debug_init(5 * 1024 * 1024);
- if (rc != 0) {
- CERROR("libcfs_debug_init() failed: %d\n", rc);
- RETURN (-ENXIO);
- }
-
- rc = LNetInit();
- if (rc != 0) {
- CERROR("LNetInit() failed: %d\n", rc);
- RETURN (-ENXIO);
- }
- RETURN(0);
-}
-
-extern void ptlrpc_exit_portals(void);
-void cleanup_lib_portals()
-{
- libcfs_debug_cleanup();
- ptlrpc_exit_portals();
-}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff