diff options
Diffstat (limited to 'extras/multipath-tools/libdevmapper')
| -rw-r--r-- | extras/multipath-tools/libdevmapper/Makefile | 30 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c | 1092 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h | 111 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h | 51 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/libdevmapper.h | 147 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/libdm-common.c | 382 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/libdm-common.h | 38 | ||||
| -rw-r--r-- | extras/multipath-tools/libdevmapper/list.h | 99 |
8 files changed, 0 insertions, 1950 deletions
diff --git a/extras/multipath-tools/libdevmapper/Makefile b/extras/multipath-tools/libdevmapper/Makefile deleted file mode 100644 index 4a8b7723fa..0000000000 --- a/extras/multipath-tools/libdevmapper/Makefile +++ /dev/null @@ -1,30 +0,0 @@ -# Makefile -# -# Copyright (C) 2003 Christophe Varoqui, <christophe.varoqui@free.fr> - -CC = gcc -udevdir = ../../.. -klibcdir = $(udevdir)/klibc - -CC = gcc -GCCINCDIR := ${shell $(CC) -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp"} -KERNEL_DIR = /lib/modules/${shell uname -r}/build - -CFLAGS = -pipe -g -O2 -Wall -Wunused -Wstrict-prototypes -nostdinc \ - -I$(klibcdir)/klibc/include -I$(klibcdir)/klibc/include/bits32 \ - -I$(GCCINCDIR) -I$(KERNEL_DIR)/include -I. -Iioctl - -OBJS = ioctl/libdevmapper.o libdm-common.o - -all: $(OBJS) - @echo "" - @echo "Make complete" - -clean: - rm -f core *.o ioctl/*.o ioctl/*.so - -spotless: clean - -install: - -uninstall: diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c b/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c deleted file mode 100644 index ac7ba0c86a..0000000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdevmapper.c +++ /dev/null @@ -1,1092 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#include "libdm-targets.h" -#include "libdm-common.h" - -#ifdef DM_COMPAT -# include "libdm-compat.h" -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <errno.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <limits.h> - -#ifdef linux -# include <linux/limits.h> -# include <linux/kdev_t.h> -# include <linux/dm-ioctl.h> -#else -# define MAJOR(x) major((x)) -# define MINOR(x) minor((x)) -# define MKDEV(x,y) makedev((x),(y)) -#endif - -/* - * Ensure build compatibility. - * The hard-coded versions here are the highest present - * in the _cmd_data arrays. - */ - -#if !((DM_VERSION_MAJOR == 1 && DM_VERSION_MINOR >= 0) || \ - (DM_VERSION_MAJOR == 4 && DM_VERSION_MINOR >= 0)) -#error The version of dm-ioctl.h included is incompatible. -#endif - -/* dm major version no for running kernel */ -static int _dm_version = DM_VERSION_MAJOR; -static int _log_suppress = 0; - -static int _control_fd = -1; -static int _version_checked = 0; -static int _version_ok = 1; - -/* - * Support both old and new major numbers to ease the transition. - * Clumsy, but only temporary. - */ -#if DM_VERSION_MAJOR == 4 && defined(DM_COMPAT) -const int _dm_compat = 1; -#else -const int _dm_compat = 0; -#endif - - -/* *INDENT-OFF* */ -static struct cmd_data _cmd_data_v4[] = { - {"create", DM_DEV_CREATE, {4, 0, 0}}, - {"reload", DM_TABLE_LOAD, {4, 0, 0}}, - {"remove", DM_DEV_REMOVE, {4, 0, 0}}, - {"remove_all", DM_REMOVE_ALL, {4, 0, 0}}, - {"suspend", DM_DEV_SUSPEND, {4, 0, 0}}, - {"resume", DM_DEV_SUSPEND, {4, 0, 0}}, - {"info", DM_DEV_STATUS, {4, 0, 0}}, - {"deps", DM_TABLE_DEPS, {4, 0, 0}}, - {"rename", DM_DEV_RENAME, {4, 0, 0}}, - {"version", DM_VERSION, {4, 0, 0}}, - {"status", DM_TABLE_STATUS, {4, 0, 0}}, - {"table", DM_TABLE_STATUS, {4, 0, 0}}, - {"waitevent", DM_DEV_WAIT, {4, 0, 0}}, - {"names", DM_LIST_DEVICES, {4, 0, 0}}, - {"clear", DM_TABLE_CLEAR, {4, 0, 0}}, - {"mknodes", DM_DEV_STATUS, {4, 0, 0}}, -}; -/* *INDENT-ON* */ - -#define ALIGNMENT_V1 sizeof(int) -#define ALIGNMENT 8 - -/* FIXME Rejig library to record & use errno instead */ -#ifndef DM_EXISTS_FLAG -# define DM_EXISTS_FLAG 0x00000004 -#endif - -static void *_align(void *ptr, unsigned int a) -{ - register unsigned long agn = --a; - - return (void *) (((unsigned long) ptr + agn) & ~agn); -} - -static int _open_control(void) -{ - char control[PATH_MAX]; - - if (_control_fd != -1) - return 1; - - snprintf(control, sizeof(control), "%s/control", dm_dir()); - - if ((_control_fd = open(control, O_RDWR)) < 0) { - log_error("%s: open failed: %s", control, strerror(errno)); - log_error("Is device-mapper driver missing from kernel?"); - return 0; - } - - return 1; -} - -void dm_task_destroy(struct dm_task *dmt) -{ - struct target *t, *n; - - for (t = dmt->head; t; t = n) { - n = t->next; - free(t->params); - free(t->type); - free(t); - } - - if (dmt->dev_name) - free(dmt->dev_name); - - if (dmt->newname) - free(dmt->newname); - - if (dmt->dmi.v4) - free(dmt->dmi.v4); - - if (dmt->uuid) - free(dmt->uuid); - - free(dmt); -} - -/* - * Protocol Version 1 compatibility functions. - */ - -#ifdef DM_COMPAT - -static int _dm_task_get_driver_version_v1(struct dm_task *dmt, char *version, - size_t size) -{ - unsigned int *v; - - if (!dmt->dmi.v1) { - version[0] = '\0'; - return 0; - } - - v = dmt->dmi.v1->version; - snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]); - return 1; -} - -/* Unmarshall the target info returned from a status call */ -static int _unmarshal_status_v1(struct dm_task *dmt, struct dm_ioctl_v1 *dmi) -{ - char *outbuf = (char *) dmi + dmi->data_start; - char *outptr = outbuf; - int32_t i; - struct dm_target_spec_v1 *spec; - - for (i = 0; i < dmi->target_count; i++) { - spec = (struct dm_target_spec_v1 *) outptr; - - if (!dm_task_add_target(dmt, spec->sector_start, - (uint64_t) spec->length, - spec->target_type, - outptr + sizeof(*spec))) - return 0; - - outptr = outbuf + spec->next; - } - - return 1; -} - -static int _dm_format_dev_v1(char *buf, int bufsize, uint32_t dev_major, - uint32_t dev_minor) -{ - int r; - - if (bufsize < 8) - return 0; - - r = snprintf(buf, bufsize, "%03x:%03x", dev_major, dev_minor); - if (r < 0 || r > bufsize - 1) - return 0; - - return 1; -} - -static int _dm_task_get_info_v1(struct dm_task *dmt, struct dm_info *info) -{ - if (!dmt->dmi.v1) - return 0; - - memset(info, 0, sizeof(*info)); - - info->exists = dmt->dmi.v1->flags & DM_EXISTS_FLAG ? 1 : 0; - if (!info->exists) - return 1; - - info->suspended = dmt->dmi.v1->flags & DM_SUSPEND_FLAG ? 1 : 0; - info->read_only = dmt->dmi.v1->flags & DM_READONLY_FLAG ? 1 : 0; - info->target_count = dmt->dmi.v1->target_count; - info->open_count = dmt->dmi.v1->open_count; - info->event_nr = 0; - info->major = MAJOR(dmt->dmi.v1->dev); - info->minor = MINOR(dmt->dmi.v1->dev); - info->live_table = 1; - info->inactive_table = 0; - - return 1; -} - -static const char *_dm_task_get_name_v1(struct dm_task *dmt) -{ - return (dmt->dmi.v1->name); -} - -static const char *_dm_task_get_uuid_v1(struct dm_task *dmt) -{ - return (dmt->dmi.v1->uuid); -} - -static struct dm_deps *_dm_task_get_deps_v1(struct dm_task *dmt) -{ - log_error("deps version 1 no longer supported by libdevmapper"); - return NULL; -} - -static struct dm_names *_dm_task_get_names_v1(struct dm_task *dmt) -{ - return (struct dm_names *) (((void *) dmt->dmi.v1) + - dmt->dmi.v1->data_start); -} - -static void *_add_target_v1(struct target *t, void *out, void *end) -{ - void *out_sp = out; - struct dm_target_spec_v1 sp; - size_t sp_size = sizeof(struct dm_target_spec_v1); - int len; - const char no_space[] = "Ran out of memory building ioctl parameter"; - - out += sp_size; - if (out >= end) { - log_error(no_space); - return NULL; - } - - sp.status = 0; - sp.sector_start = t->start; - sp.length = t->length; - strncpy(sp.target_type, t->type, sizeof(sp.target_type)); - - len = strlen(t->params); - - if ((out + len + 1) >= end) { - log_error(no_space); - - log_error("t->params= '%s'", t->params); - return NULL; - } - strcpy((char *) out, t->params); - out += len + 1; - - /* align next block */ - out = _align(out, ALIGNMENT_V1); - - sp.next = out - out_sp; - - memcpy(out_sp, &sp, sp_size); - - return out; -} - -static struct dm_ioctl_v1 *_flatten_v1(struct dm_task *dmt) -{ - const size_t min_size = 16 * 1024; - const int (*version)[3]; - - struct dm_ioctl_v1 *dmi; - struct target *t; - size_t len = sizeof(struct dm_ioctl_v1); - void *b, *e; - int count = 0; - - for (t = dmt->head; t; t = t->next) { - len += sizeof(struct dm_target_spec_v1); - len += strlen(t->params) + 1 + ALIGNMENT_V1; - count++; - } - - if (count && dmt->newname) { - log_error("targets and newname are incompatible"); - return NULL; - } - - if (dmt->newname) - len += strlen(dmt->newname) + 1; - - /* - * Give len a minimum size so that we have space to store - * dependencies or status information. - */ - if (len < min_size) - len = min_size; - - if (!(dmi = malloc(len))) - return NULL; - - memset(dmi, 0, len); - - version = &_cmd_data_v1[dmt->type].version; - - dmi->version[0] = (*version)[0]; - dmi->version[1] = (*version)[1]; - dmi->version[2] = (*version)[2]; - - dmi->data_size = len; - dmi->data_start = sizeof(struct dm_ioctl_v1); - - if (dmt->dev_name) - strncpy(dmi->name, dmt->dev_name, sizeof(dmi->name)); - - if (dmt->type == DM_DEVICE_SUSPEND) - dmi->flags |= DM_SUSPEND_FLAG; - if (dmt->read_only) - dmi->flags |= DM_READONLY_FLAG; - - if (dmt->minor >= 0) { - if (dmt->major <= 0) { - log_error("Missing major number for persistent device"); - return NULL; - } - dmi->flags |= DM_PERSISTENT_DEV_FLAG; - dmi->dev = MKDEV(dmt->major, dmt->minor); - } - - if (dmt->uuid) - strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid)); - - dmi->target_count = count; - - b = (void *) (dmi + 1); - e = (void *) ((char *) dmi + len); - - for (t = dmt->head; t; t = t->next) - if (!(b = _add_target_v1(t, b, e))) - goto bad; - - if (dmt->newname) - strcpy(b, dmt->newname); - - return dmi; - - bad: - free(dmi); - return NULL; -} - -static int _dm_names_v1(struct dm_ioctl_v1 *dmi) -{ - const char *dev_dir = dm_dir(); - int r = 1, len; - const char *name; - struct dirent *dirent; - DIR *d; - struct dm_names *names, *old_names = NULL; - void *end = (void *) dmi + dmi->data_size; - struct stat buf; - char path[PATH_MAX]; - - if (!(d = opendir(dev_dir))) { - log_error("%s: opendir failed: %s", dev_dir, strerror(errno)); - return 0; - } - - names = (struct dm_names *) ((void *) dmi + dmi->data_start); - - names->dev = 0; /* Flags no data */ - - while ((dirent = readdir(d))) { - name = dirent->d_name; - - if (name[0] == '.' || !strcmp(name, "control")) - continue; - - if (old_names) - old_names->next = (uint32_t) ((void *) names - - (void *) old_names); - snprintf(path, sizeof(path), "%s/%s", dev_dir, name); - if (stat(path, &buf)) { - log_error("%s: stat failed: %s", path, strerror(errno)); - continue; - } - if (!S_ISBLK(buf.st_mode)) - continue; - names->dev = (uint64_t) buf.st_rdev; - names->next = 0; - len = strlen(name); - if (((void *) (names + 1) + len + 1) >= end) { - log_error("Insufficient buffer space for device list"); - r = 0; - break; - } - - strcpy(names->name, name); - - old_names = names; - names = _align((void *) ++names + len + 1, ALIGNMENT); - } - - if (closedir(d)) - log_error("%s: closedir failed: %s", dev_dir, strerror(errno)); - - return r; -} - -static int _dm_task_run_v1(struct dm_task *dmt) -{ - struct dm_ioctl_v1 *dmi; - unsigned int command; - - dmi = _flatten_v1(dmt); - if (!dmi) { - log_error("Couldn't create ioctl argument"); - return 0; - } - - if (!_open_control()) - return 0; - - if ((unsigned) dmt->type >= - (sizeof(_cmd_data_v1) / sizeof(*_cmd_data_v1))) { - log_error("Internal error: unknown device-mapper task %d", - dmt->type); - goto bad; - } - - command = _cmd_data_v1[dmt->type].cmd; - - if (dmt->type == DM_DEVICE_TABLE) - dmi->flags |= DM_STATUS_TABLE_FLAG; - - log_debug("dm %s %s %s %s", _cmd_data_v1[dmt->type].name, dmi->name, - dmi->uuid, dmt->newname ? dmt->newname : ""); - if (dmt->type == DM_DEVICE_LIST) { - if (!_dm_names_v1(dmi)) - goto bad; - } else if (ioctl(_control_fd, command, dmi) < 0) { - if (_log_suppress) - log_verbose("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - else - log_error("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - goto bad; - } - - switch (dmt->type) { - case DM_DEVICE_CREATE: - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev)); - break; - - case DM_DEVICE_REMOVE: - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_RENAME: - rename_dev_node(dmt->dev_name, dmt->newname); - break; - - case DM_DEVICE_MKNODES: - if (dmi->flags & DM_EXISTS_FLAG) - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), - MINOR(dmi->dev)); - else - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_STATUS: - case DM_DEVICE_TABLE: - if (!_unmarshal_status_v1(dmt, dmi)) - goto bad; - break; - - case DM_DEVICE_SUSPEND: - case DM_DEVICE_RESUME: - dmt->type = DM_DEVICE_INFO; - if (!dm_task_run(dmt)) - goto bad; - free(dmi); /* We'll use what info returned */ - return 1; - } - - dmt->dmi.v1 = dmi; - return 1; - - bad: - free(dmi); - return 0; -} - -#endif - -/* - * Protocol Version 4 functions. - */ - -int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size) -{ - unsigned int *v; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_driver_version_v1(dmt, version, size); -#endif - - if (!dmt->dmi.v4) { - version[0] = '\0'; - return 0; - } - - v = dmt->dmi.v4->version; - snprintf(version, size, "%u.%u.%u", v[0], v[1], v[2]); - return 1; -} - -static int _check_version(char *version, size_t size, int log_suppress) -{ - struct dm_task *task; - int r; - - if (!(task = dm_task_create(DM_DEVICE_VERSION))) { - log_error("Failed to get device-mapper version"); - version[0] = '\0'; - return 0; - } - - if (log_suppress) - _log_suppress = 1; - - r = dm_task_run(task); - dm_task_get_driver_version(task, version, size); - dm_task_destroy(task); - _log_suppress = 0; - - return r; -} - -/* - * Find out device-mapper's major version number the first time - * this is called and whether or not we support it. - */ -int dm_check_version(void) -{ - char libversion[64], dmversion[64]; - const char *compat = ""; - - if (_version_checked) - return _version_ok; - - _version_checked = 1; - - if (_check_version(dmversion, sizeof(dmversion), _dm_compat)) - return 1; - - if (!_dm_compat) - goto bad; - - log_verbose("device-mapper ioctl protocol version %d failed. " - "Trying protocol version 1.", _dm_version); - _dm_version = 1; - if (_check_version(dmversion, sizeof(dmversion), 0)) { - log_verbose("Using device-mapper ioctl protocol version 1"); - return 1; - } - - compat = "(compat)"; - - dm_get_library_version(libversion, sizeof(libversion)); - - log_error("Incompatible libdevmapper %s%s and kernel driver %s", - libversion, compat, dmversion); - - bad: - _version_ok = 0; - return 0; -} - -void *dm_get_next_target(struct dm_task *dmt, void *next, - uint64_t *start, uint64_t *length, - char **target_type, char **params) -{ - struct target *t = (struct target *) next; - - if (!t) - t = dmt->head; - - if (!t) - return NULL; - - *start = t->start; - *length = t->length; - *target_type = t->type; - *params = t->params; - - return t->next; -} - -/* Unmarshall the target info returned from a status call */ -static int _unmarshal_status(struct dm_task *dmt, struct dm_ioctl *dmi) -{ - char *outbuf = (char *) dmi + dmi->data_start; - char *outptr = outbuf; - uint32_t i; - struct dm_target_spec *spec; - - for (i = 0; i < dmi->target_count; i++) { - spec = (struct dm_target_spec *) outptr; - if (!dm_task_add_target(dmt, spec->sector_start, - spec->length, - spec->target_type, - outptr + sizeof(*spec))) - return 0; - - outptr = outbuf + spec->next; - } - - return 1; -} - -int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, - uint32_t dev_minor) -{ - int r; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_format_dev_v1(buf, bufsize, dev_major, dev_minor); -#endif - - if (bufsize < 8) - return 0; - - r = snprintf(buf, bufsize, "%03u:%03u", dev_major, dev_minor); - if (r < 0 || r > bufsize - 1) - return 0; - - return 1; -} - -int dm_task_get_info(struct dm_task *dmt, struct dm_info *info) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_info_v1(dmt, info); -#endif - - if (!dmt->dmi.v4) - return 0; - - memset(info, 0, sizeof(*info)); - - info->exists = dmt->dmi.v4->flags & DM_EXISTS_FLAG ? 1 : 0; - if (!info->exists) - return 1; - - info->suspended = dmt->dmi.v4->flags & DM_SUSPEND_FLAG ? 1 : 0; - info->read_only = dmt->dmi.v4->flags & DM_READONLY_FLAG ? 1 : 0; - info->live_table = dmt->dmi.v4->flags & DM_ACTIVE_PRESENT_FLAG ? 1 : 0; - info->inactive_table = dmt->dmi.v4->flags & DM_INACTIVE_PRESENT_FLAG ? - 1 : 0; - info->target_count = dmt->dmi.v4->target_count; - info->open_count = dmt->dmi.v4->open_count; - info->event_nr = dmt->dmi.v4->event_nr; - info->major = MAJOR(dmt->dmi.v4->dev); - info->minor = MINOR(dmt->dmi.v4->dev); - - return 1; -} - -const char *dm_task_get_name(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_name_v1(dmt); -#endif - - return (dmt->dmi.v4->name); -} - -const char *dm_task_get_uuid(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_uuid_v1(dmt); -#endif - - return (dmt->dmi.v4->uuid); -} - -struct dm_deps *dm_task_get_deps(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_deps_v1(dmt); -#endif - - return (struct dm_deps *) (((void *) dmt->dmi.v4) + - dmt->dmi.v4->data_start); -} - -struct dm_names *dm_task_get_names(struct dm_task *dmt) -{ -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_get_names_v1(dmt); -#endif - - return (struct dm_names *) (((void *) dmt->dmi.v4) + - dmt->dmi.v4->data_start); -} - -int dm_task_set_ro(struct dm_task *dmt) -{ - dmt->read_only = 1; - return 1; -} - -int dm_task_set_newname(struct dm_task *dmt, const char *newname) -{ - if (!(dmt->newname = strdup(newname))) { - log_error("dm_task_set_newname: strdup(%s) failed", newname); - return 0; - } - - return 1; -} - -int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr) -{ - dmt->event_nr = event_nr; - - return 1; -} - -struct target *create_target(uint64_t start, uint64_t len, const char *type, - const char *params) -{ - struct target *t = malloc(sizeof(*t)); - - if (!t) { - log_error("create_target: malloc(%d) failed", sizeof(*t)); - return NULL; - } - - memset(t, 0, sizeof(*t)); - - if (!(t->params = strdup(params))) { - log_error("create_target: strdup(params) failed"); - goto bad; - } - - if (!(t->type = strdup(type))) { - log_error("create_target: strdup(type) failed"); - goto bad; - } - - t->start = start; - t->length = len; - return t; - - bad: - free(t->params); - free(t->type); - free(t); - return NULL; -} - -static void *_add_target(struct target *t, void *out, void *end) -{ - void *out_sp = out; - struct dm_target_spec sp; - size_t sp_size = sizeof(struct dm_target_spec); - int len; - const char no_space[] = "Ran out of memory building ioctl parameter"; - - out += sp_size; - if (out >= end) { - log_error(no_space); - return NULL; - } - - sp.status = 0; - sp.sector_start = t->start; - sp.length = t->length; - strncpy(sp.target_type, t->type, sizeof(sp.target_type)); - - len = strlen(t->params); - - if ((out + len + 1) >= end) { - log_error(no_space); - - log_error("t->params= '%s'", t->params); - return NULL; - } - strcpy((char *) out, t->params); - out += len + 1; - - /* align next block */ - out = _align(out, ALIGNMENT); - - sp.next = out - out_sp; - memcpy(out_sp, &sp, sp_size); - - return out; -} - -static struct dm_ioctl *_flatten(struct dm_task *dmt) -{ - const size_t min_size = 16 * 1024; - const int (*version)[3]; - - struct dm_ioctl *dmi; - struct target *t; - size_t len = sizeof(struct dm_ioctl); - void *b, *e; - int count = 0; - - for (t = dmt->head; t; t = t->next) { - len += sizeof(struct dm_target_spec); - len += strlen(t->params) + 1 + ALIGNMENT; - count++; - } - - if (count && dmt->newname) { - log_error("targets and newname are incompatible"); - return NULL; - } - - if (dmt->newname) - len += strlen(dmt->newname) + 1; - - /* - * Give len a minimum size so that we have space to store - * dependencies or status information. - */ - if (len < min_size) - len = min_size; - - if (!(dmi = malloc(len))) - return NULL; - - memset(dmi, 0, len); - - version = &_cmd_data_v4[dmt->type].version; - - dmi->version[0] = (*version)[0]; - dmi->version[1] = (*version)[1]; - dmi->version[2] = (*version)[2]; - - dmi->data_size = len; - dmi->data_start = sizeof(struct dm_ioctl); - - if (dmt->dev_name) - strncpy(dmi->name, dmt->dev_name, sizeof(dmi->name)); - - if (dmt->type == DM_DEVICE_SUSPEND) - dmi->flags |= DM_SUSPEND_FLAG; - if (dmt->read_only) - dmi->flags |= DM_READONLY_FLAG; - - if (dmt->minor >= 0) { - if (dmt->major <= 0) { - log_error("Missing major number for persistent device"); - return NULL; - } - dmi->flags |= DM_PERSISTENT_DEV_FLAG; - dmi->dev = MKDEV(dmt->major, dmt->minor); - } - - if (dmt->uuid) - strncpy(dmi->uuid, dmt->uuid, sizeof(dmi->uuid)); - - dmi->target_count = count; - dmi->event_nr = dmt->event_nr; - - b = (void *) (dmi + 1); - e = (void *) ((char *) dmi + len); - - for (t = dmt->head; t; t = t->next) - if (!(b = _add_target(t, b, e))) - goto bad; - - if (dmt->newname) - strcpy(b, dmt->newname); - - return dmi; - - bad: - free(dmi); - return NULL; -} - -static int _create_and_load_v4(struct dm_task *dmt) -{ - struct dm_task *task; - int r; - - /* Use new task struct to create the device */ - if (!(task = dm_task_create(DM_DEVICE_CREATE))) { - log_error("Failed to create device-mapper task struct"); - return 0; - } - - /* Copy across relevant fields */ - if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) { - dm_task_destroy(task); - return 0; - } - - if (dmt->uuid && !dm_task_set_uuid(task, dmt->uuid)) { - dm_task_destroy(task); - return 0; - } - - task->major = dmt->major; - task->minor = dmt->minor; - - r = dm_task_run(task); - dm_task_destroy(task); - if (!r) - return r; - - /* Next load the table */ - if (!(task = dm_task_create(DM_DEVICE_RELOAD))) { - log_error("Failed to create device-mapper task struct"); - return 0; - } - - /* Copy across relevant fields */ - if (dmt->dev_name && !dm_task_set_name(task, dmt->dev_name)) { - dm_task_destroy(task); - return 0; - } - - task->read_only = dmt->read_only; - task->head = dmt->head; - task->tail = dmt->tail; - - r = dm_task_run(task); - - task->head = NULL; - task->tail = NULL; - dm_task_destroy(task); - if (!r) - return r; - - /* Use the original structure last so the info will be correct */ - dmt->type = DM_DEVICE_RESUME; - dmt->uuid = NULL; - free(dmt->uuid); - - r = dm_task_run(dmt); - - return r; -} - -int dm_task_run(struct dm_task *dmt) -{ - struct dm_ioctl *dmi = NULL; - unsigned int command; - -#ifdef DM_COMPAT - if (_dm_version == 1) - return _dm_task_run_v1(dmt); -#endif - - if ((unsigned) dmt->type >= - (sizeof(_cmd_data_v4) / sizeof(*_cmd_data_v4))) { - log_error("Internal error: unknown device-mapper task %d", - dmt->type); - goto bad; - } - - command = _cmd_data_v4[dmt->type].cmd; - - /* Old-style creation had a table supplied */ - if (dmt->type == DM_DEVICE_CREATE && dmt->head) - return _create_and_load_v4(dmt); - - if (!_open_control()) - return 0; - - dmi = _flatten(dmt); - if (!dmi) { - log_error("Couldn't create ioctl argument"); - return 0; - } - - if (dmt->type == DM_DEVICE_TABLE) - dmi->flags |= DM_STATUS_TABLE_FLAG; - - dmi->flags |= DM_EXISTS_FLAG; /* FIXME */ - log_debug("dm %s %s %s %s", _cmd_data_v4[dmt->type].name, dmi->name, - dmi->uuid, dmt->newname ? dmt->newname : ""); - if (ioctl(_control_fd, command, dmi) < 0) { - if (errno == ENXIO && ((dmt->type == DM_DEVICE_INFO) || - (dmt->type == DM_DEVICE_MKNODES))) { - dmi->flags &= ~DM_EXISTS_FLAG; /* FIXME */ - goto ignore_error; - } - if (_log_suppress) - log_verbose("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - else - log_error("device-mapper ioctl cmd %d failed: %s", - _IOC_NR(command), strerror(errno)); - goto bad; - } - - ignore_error: - switch (dmt->type) { - case DM_DEVICE_CREATE: - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev)); - break; - - case DM_DEVICE_REMOVE: - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_RENAME: - rename_dev_node(dmt->dev_name, dmt->newname); - break; - - case DM_DEVICE_MKNODES: - if (dmi->flags & DM_EXISTS_FLAG) - add_dev_node(dmt->dev_name, MAJOR(dmi->dev), - MINOR(dmi->dev)); - else - rm_dev_node(dmt->dev_name); - break; - - case DM_DEVICE_STATUS: - case DM_DEVICE_TABLE: - case DM_DEVICE_WAITEVENT: - if (!_unmarshal_status(dmt, dmi)) - goto bad; - break; - } - - dmt->dmi.v4 = dmi; - return 1; - - bad: - free(dmi); - return 0; -} - -void dm_lib_release(void) -{ - if (_control_fd != -1) { - close(_control_fd); - _control_fd = -1; - } - update_devs(); -} - -void dm_lib_exit(void) -{ - if (_control_fd != -1) { - close(_control_fd); - _control_fd = -1; - } - _version_ok = 1; - _version_checked = 0; -} diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h b/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h deleted file mode 100644 index af7a9f1f71..0000000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdm-compat.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#ifndef _LINUX_LIBDM_COMPAT_H -#define _LINUX_LIBDM_COMPAT_H - -#include <inttypes.h> -#include <linux/dm-ioctl.h> -#include <linux/kdev_t.h> -#include <sys/ioctl.h> - -struct dm_task; -struct dm_info; - -/* - * Old versions of structures for backwards compatibility. - */ - -struct dm_ioctl_v1 { - uint32_t version[3]; /* in/out */ - uint32_t data_size; /* total size of data passed in - * including this struct */ - - uint32_t data_start; /* offset to start of data - * relative to start of this struct */ - - int32_t target_count; /* in/out */ - int32_t open_count; /* out */ - uint32_t flags; /* in/out */ - - __kernel_dev_t dev; /* in/out */ - - char name[DM_NAME_LEN]; /* device name */ - char uuid[DM_UUID_LEN]; /* unique identifier for - * the block device */ -}; - -struct dm_target_spec_v1 { - int32_t status; /* used when reading from kernel only */ - uint64_t sector_start; - uint32_t length; - uint32_t next; - - char target_type[DM_MAX_TYPE_NAME]; - -}; - -struct dm_target_deps_v1 { - uint32_t count; - - __kernel_dev_t dev[0]; /* out */ -}; - -enum { - /* Top level cmds */ - DM_VERSION_CMD_V1 = 0, - DM_REMOVE_ALL_CMD_V1, - - /* device level cmds */ - DM_DEV_CREATE_CMD_V1, - DM_DEV_REMOVE_CMD_V1, - DM_DEV_RELOAD_CMD_V1, - DM_DEV_RENAME_CMD_V1, - DM_DEV_SUSPEND_CMD_V1, - DM_DEV_DEPS_CMD_V1, - DM_DEV_STATUS_CMD_V1, - - /* target level cmds */ - DM_TARGET_STATUS_CMD_V1, - DM_TARGET_WAIT_CMD_V1, -}; - -#define DM_VERSION_V1 _IOWR(DM_IOCTL, DM_VERSION_CMD_V1, struct dm_ioctl) -#define DM_REMOVE_ALL_V1 _IOWR(DM_IOCTL, DM_REMOVE_ALL_CMD_V1, struct dm_ioctl) - -#define DM_DEV_CREATE_V1 _IOWR(DM_IOCTL, DM_DEV_CREATE_CMD_V1, struct dm_ioctl) -#define DM_DEV_REMOVE_V1 _IOWR(DM_IOCTL, DM_DEV_REMOVE_CMD_V1, struct dm_ioctl) -#define DM_DEV_RELOAD_V1 _IOWR(DM_IOCTL, DM_DEV_RELOAD_CMD_V1, struct dm_ioctl) -#define DM_DEV_SUSPEND_V1 _IOWR(DM_IOCTL, DM_DEV_SUSPEND_CMD_V1, struct dm_ioctl) -#define DM_DEV_RENAME_V1 _IOWR(DM_IOCTL, DM_DEV_RENAME_CMD_V1, struct dm_ioctl) -#define DM_DEV_DEPS_V1 _IOWR(DM_IOCTL, DM_DEV_DEPS_CMD_V1, struct dm_ioctl) -#define DM_DEV_STATUS_V1 _IOWR(DM_IOCTL, DM_DEV_STATUS_CMD_V1, struct dm_ioctl) - -#define DM_TARGET_STATUS_V1 _IOWR(DM_IOCTL, DM_TARGET_STATUS_CMD_V1, struct dm_ioctl) -#define DM_TARGET_WAIT_V1 _IOWR(DM_IOCTL, DM_TARGET_WAIT_CMD_V1, struct dm_ioctl) - -/* *INDENT-OFF* */ -static struct cmd_data _cmd_data_v1[] = { - { "create", DM_DEV_CREATE_V1, {1, 0, 0} }, - { "reload", DM_DEV_RELOAD_V1, {1, 0, 0} }, - { "remove", DM_DEV_REMOVE_V1, {1, 0, 0} }, - { "remove_all", DM_REMOVE_ALL_V1, {1, 0, 0} }, - { "suspend", DM_DEV_SUSPEND_V1, {1, 0, 0} }, - { "resume", DM_DEV_SUSPEND_V1, {1, 0, 0} }, - { "info", DM_DEV_STATUS_V1, {1, 0, 0} }, - { "deps", DM_DEV_DEPS_V1, {1, 0, 0} }, - { "rename", DM_DEV_RENAME_V1, {1, 0, 0} }, - { "version", DM_VERSION_V1, {1, 0, 0} }, - { "status", DM_TARGET_STATUS_V1, {1, 0, 0} }, - { "table", DM_TARGET_STATUS_V1, {1, 0, 0} }, - { "waitevent", DM_TARGET_WAIT_V1, {1, 0, 0} }, - { "names", 0, {4, 0, 0} }, - { "clear", 0, {4, 0, 0} }, - { "mknodes", 0, {4, 0, 0} }, -}; -/* *INDENT-ON* */ - -#endif diff --git a/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h b/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h deleted file mode 100644 index a8c0e20547..0000000000 --- a/extras/multipath-tools/libdevmapper/ioctl/libdm-targets.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#ifndef LIB_DMTARGETS_H -#define LIB_DMTARGETS_H - -#include <inttypes.h> - -struct dm_ioctl; -struct dm_ioctl_v1; - -struct target { - uint64_t start; - uint64_t length; - char *type; - char *params; - - struct target *next; -}; - -struct dm_task { - int type; - char *dev_name; - - struct target *head, *tail; - - int read_only; - uint32_t event_nr; - int major; - int minor; - union { - struct dm_ioctl *v4; - struct dm_ioctl_v1 *v1; - } dmi; - char *newname; - - char *uuid; -}; - -struct cmd_data { - const char *name; - const int cmd; - const int version[3]; -}; - -int dm_check_version(void); - -#endif diff --git a/extras/multipath-tools/libdevmapper/libdevmapper.h b/extras/multipath-tools/libdevmapper/libdevmapper.h deleted file mode 100644 index 6549af3641..0000000000 --- a/extras/multipath-tools/libdevmapper/libdevmapper.h +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#ifndef LIB_DEVICE_MAPPER_H -#define LIB_DEVICE_MAPPER_H - -#include <inttypes.h> -#include <sys/types.h> - -#ifdef linux -# include <linux/types.h> -#endif - -/* - * Since it is quite laborious to build the ioctl - * arguments for the device-mapper people are - * encouraged to use this library. - * - * You will need to build a struct dm_task for - * each ioctl command you want to execute. - */ - -typedef void (*dm_log_fn) (int level, const char *file, int line, - const char *f, ...); - -/* - * The library user may wish to register their own - * logging function, by default errors go to - * stderr. - */ -void dm_log_init(dm_log_fn fn); -void dm_log_init_verbose(int level); - -enum { - DM_DEVICE_CREATE, - DM_DEVICE_RELOAD, - DM_DEVICE_REMOVE, - DM_DEVICE_REMOVE_ALL, - - DM_DEVICE_SUSPEND, - DM_DEVICE_RESUME, - - DM_DEVICE_INFO, - DM_DEVICE_DEPS, - DM_DEVICE_RENAME, - - DM_DEVICE_VERSION, - - DM_DEVICE_STATUS, - DM_DEVICE_TABLE, - DM_DEVICE_WAITEVENT, - - DM_DEVICE_LIST, - - DM_DEVICE_CLEAR, - - DM_DEVICE_MKNODES -}; - -struct dm_task; - -struct dm_task *dm_task_create(int type); -void dm_task_destroy(struct dm_task *dmt); - -int dm_task_set_name(struct dm_task *dmt, const char *name); -int dm_task_set_uuid(struct dm_task *dmt, const char *uuid); - -/* - * Retrieve attributes after an info. - */ -struct dm_info { - int exists; - int suspended; - int live_table; - int inactive_table; - int32_t open_count; - uint32_t event_nr; - uint32_t major; - uint32_t minor; /* minor device number */ - int read_only; /* 0:read-write; 1:read-only */ - - int32_t target_count; -}; - -struct dm_deps { - uint32_t count; - uint32_t filler; - uint64_t device[0]; -}; - -struct dm_names { - uint64_t dev; - uint32_t next; /* Offset to next struct from start of this struct */ - char name[0]; -}; - -int dm_get_library_version(char *version, size_t size); -int dm_task_get_driver_version(struct dm_task *dmt, char *version, size_t size); -int dm_task_get_info(struct dm_task *dmt, struct dm_info *dmi); -const char *dm_task_get_name(struct dm_task *dmt); -const char *dm_task_get_uuid(struct dm_task *dmt); - -struct dm_deps *dm_task_get_deps(struct dm_task *dmt); -struct dm_names *dm_task_get_names(struct dm_task *dmt); - -int dm_task_set_ro(struct dm_task *dmt); -int dm_task_set_newname(struct dm_task *dmt, const char *newname); -int dm_task_set_minor(struct dm_task *dmt, int minor); -int dm_task_set_major(struct dm_task *dmt, int major); -int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr); - -/* - * Use these to prepare for a create or reload. - */ -int dm_task_add_target(struct dm_task *dmt, - uint64_t start, - uint64_t size, const char *ttype, const char *params); - -/* - * Format major/minor numbers correctly for input to driver - */ -int dm_format_dev(char *buf, int bufsize, uint32_t dev_major, uint32_t dev_minor); - -/* Use this to retrive target information returned from a STATUS call */ -void *dm_get_next_target(struct dm_task *dmt, - void *next, uint64_t *start, uint64_t *length, - char **target_type, char **params); - -/* - * Call this to actually run the ioctl. - */ -int dm_task_run(struct dm_task *dmt); - -/* - * Configure the device-mapper directory - */ -int dm_set_dev_dir(const char *dir); -const char *dm_dir(void); - -/* Release library resources */ -void dm_lib_release(void); -void dm_lib_exit(void); - -#endif /* LIB_DEVICE_MAPPER_H */ diff --git a/extras/multipath-tools/libdevmapper/libdm-common.c b/extras/multipath-tools/libdevmapper/libdm-common.c deleted file mode 100644 index b0affd1eed..0000000000 --- a/extras/multipath-tools/libdevmapper/libdm-common.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#include "libdm-targets.h" -#include "libdm-common.h" -#include "list.h" - -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <sys/param.h> -#include <sys/stat.h> -#include <unistd.h> -#include <errno.h> -#include <linux/dm-ioctl.h> -#include <linux/kdev_t.h> - -#define DEV_DIR "/dev/" - -static char _dm_dir[PATH_MAX] = DEV_DIR DM_DIR; - -static int _verbose = 0; - -/* - * Library users can provide their own logging - * function. - */ -static void _default_log(int level, const char *file, int line, - const char *f, ...) -{ - va_list ap; - - if (level > _LOG_WARN && !_verbose) - return; - - va_start(ap, f); - - if (level < _LOG_WARN) - vfprintf(stderr, f, ap); - else - vprintf(f, ap); - - va_end(ap); - - if (level < _LOG_WARN) - fprintf(stderr, "\n"); - else - fprintf(stdout, "\n"); -} - -dm_log_fn _log = _default_log; - -void dm_log_init(dm_log_fn fn) -{ - _log = fn; -} - -void dm_log_init_verbose(int level) -{ - _verbose = level; -} - -static void _build_dev_path(char *buffer, size_t len, const char *dev_name) -{ - /* If there's a /, assume caller knows what they're doing */ - if (strchr(dev_name, '/')) - snprintf(buffer, len, "%s", dev_name); - else - snprintf(buffer, len, "%s/%s", _dm_dir, dev_name); -} - -int dm_get_library_version(char *version, size_t size) -{ - strncpy(version, DM_LIB_VERSION, size); - return 1; -} - -struct dm_task *dm_task_create(int type) -{ - struct dm_task *dmt = malloc(sizeof(*dmt)); - - if (!dm_check_version()) - return NULL; - - if (!dmt) { - log_error("dm_task_create: malloc(%d) failed", sizeof(*dmt)); - return NULL; - } - - memset(dmt, 0, sizeof(*dmt)); - - dmt->type = type; - dmt->minor = -1; - dmt->major = -1; - - return dmt; -} - -int dm_task_set_name(struct dm_task *dmt, const char *name) -{ - char *pos; - char path[PATH_MAX]; - struct stat st1, st2; - - if (dmt->dev_name) { - free(dmt->dev_name); - dmt->dev_name = NULL; - } - - /* If path was supplied, remove it if it points to the same device - * as its last component. - */ - if ((pos = strrchr(name, '/'))) { - snprintf(path, sizeof(path), "%s/%s", _dm_dir, pos + 1); - - if (stat(name, &st1) || stat(path, &st2) || - !(st1.st_dev == st2.st_dev)) { - log_error("dm_task_set_name: Device %s not found", - name); - return 0; - } - - name = pos + 1; - } - - if (!(dmt->dev_name = strdup(name))) { - log_error("dm_task_set_name: strdup(%s) failed", name); - return 0; - } - - return 1; -} - -int dm_task_set_uuid(struct dm_task *dmt, const char *uuid) -{ - if (dmt->uuid) { - free(dmt->uuid); - dmt->uuid = NULL; - } - - if (!(dmt->uuid = strdup(uuid))) { - log_error("dm_task_set_uuid: strdup(%s) failed", uuid); - return 0; - } - - return 1; -} - -int dm_task_set_major(struct dm_task *dmt, int major) -{ - dmt->major = major; - log_debug("Setting major: %d", dmt->major); - - return 1; -} - -int dm_task_set_minor(struct dm_task *dmt, int minor) -{ - dmt->minor = minor; - log_debug("Setting minor: %d", dmt->minor); - - return 1; -} - -int dm_task_add_target(struct dm_task *dmt, uint64_t start, uint64_t size, - const char *ttype, const char *params) -{ - struct target *t = create_target(start, size, ttype, params); - - if (!t) - return 0; - - if (!dmt->head) - dmt->head = dmt->tail = t; - else { - dmt->tail->next = t; - dmt->tail = t; - } - - return 1; -} - -static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor) -{ - char path[PATH_MAX]; - struct stat info; - dev_t dev = MKDEV(major, minor); - - _build_dev_path(path, sizeof(path), dev_name); - - if (stat(path, &info) >= 0) { - if (!S_ISBLK(info.st_mode)) { - log_error("A non-block device file at '%s' " - "is already present", path); - return 0; - } - - if (info.st_rdev == dev) - return 1; - - if (unlink(path) < 0) { - log_error("Unable to unlink device node for '%s'", - dev_name); - return 0; - } - } - - if (mknod(path, S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP, dev) < 0) { - log_error("Unable to make device node for '%s'", dev_name); - return 0; - } - - return 1; -} - -static int _rename_dev_node(const char *old_name, const char *new_name) -{ - char oldpath[PATH_MAX]; - char newpath[PATH_MAX]; - struct stat info; - - _build_dev_path(oldpath, sizeof(oldpath), old_name); - _build_dev_path(newpath, sizeof(newpath), new_name); - - if (stat(newpath, &info) == 0) { - if (!S_ISBLK(info.st_mode)) { - log_error("A non-block device file at '%s' " - "is already present", newpath); - return 0; - } - - if (unlink(newpath) < 0) { - if (errno == EPERM) { - /* devfs, entry has already been renamed */ - return 1; - } - log_error("Unable to unlink device node for '%s'", - new_name); - return 0; - } - } - - if (rename(oldpath, newpath) < 0) { - log_error("Unable to rename device node from '%s' to '%s'", - old_name, new_name); - return 0; - } - - return 1; -} - -static int _rm_dev_node(const char *dev_name) -{ - char path[PATH_MAX]; - struct stat info; - - _build_dev_path(path, sizeof(path), dev_name); - - if (stat(path, &info) < 0) - return 1; - - if (unlink(path) < 0) { - log_error("Unable to unlink device node for '%s'", dev_name); - return 0; - } - - return 1; -} - -typedef enum { - NODE_ADD, - NODE_DEL, - NODE_RENAME -} node_op_t; - -static int _do_node_op(node_op_t type, const char *dev_name, uint32_t major, - uint32_t minor, const char *old_name) -{ - switch (type) { - case NODE_ADD: - return _add_dev_node(dev_name, major, minor); - case NODE_DEL: - return _rm_dev_node(dev_name); - case NODE_RENAME: - return _rename_dev_node(old_name, dev_name); - } - - return 1; -} - -static LIST_INIT(_node_ops); - -struct node_op_parms { - struct list list; - node_op_t type; - char *dev_name; - uint32_t major; - uint32_t minor; - char *old_name; - char names[0]; -}; - -static void _store_str(char **pos, char **ptr, const char *str) -{ - strcpy(*pos, str); - *ptr = *pos; - *pos += strlen(*ptr) + 1; -} - -static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major, - uint32_t minor, const char *old_name) -{ - struct node_op_parms *nop; - size_t len = strlen(dev_name) + strlen(old_name) + 2; - char *pos; - - if (!(nop = malloc(sizeof(*nop) + len))) { - log_error("Insufficient memory to stack mknod operation"); - return 0; - } - - pos = nop->names; - nop->type = type; - nop->major = major; - nop->minor = minor; - - _store_str(&pos, &nop->dev_name, dev_name); - _store_str(&pos, &nop->old_name, old_name); - - list_add(&_node_ops, &nop->list); - - return 1; -} - -static void _pop_node_ops(void) -{ - struct list *noph, *nopht; - struct node_op_parms *nop; - - list_iterate_safe(noph, nopht, &_node_ops) { - nop = list_item(noph, struct node_op_parms); - _do_node_op(nop->type, nop->dev_name, nop->major, nop->minor, - nop->old_name); - list_del(&nop->list); - free(nop); - } -} - -int add_dev_node(const char *dev_name, uint32_t major, uint32_t minor) -{ - return _stack_node_op(NODE_ADD, dev_name, major, minor, ""); -} - -int rename_dev_node(const char *old_name, const char *new_name) -{ - return _stack_node_op(NODE_RENAME, new_name, 0, 0, old_name); -} - -int rm_dev_node(const char *dev_name) -{ - return _stack_node_op(NODE_DEL, dev_name, 0, 0, ""); -} - -void update_devs(void) -{ - _pop_node_ops(); -} - -int dm_set_dev_dir(const char *dir) -{ - snprintf(_dm_dir, sizeof(_dm_dir), "%s%s", dir, DM_DIR); - return 1; -} - -const char *dm_dir(void) -{ - return _dm_dir; -} diff --git a/extras/multipath-tools/libdevmapper/libdm-common.h b/extras/multipath-tools/libdevmapper/libdm-common.h deleted file mode 100644 index 2b71242861..0000000000 --- a/extras/multipath-tools/libdevmapper/libdm-common.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software (UK) Limited. - * - * This file is released under the LGPL. - */ - -#ifndef LIB_DMCOMMON_H -#define LIB_DMCOMMON_H - -#include "libdevmapper.h" - -#define _LOG_DEBUG 7 -#define _LOG_INFO 6 -#define _LOG_NOTICE 5 -#define _LOG_WARN 4 -#define _LOG_ERR 3 -#define _LOG_FATAL 2 - -extern dm_log_fn _log; - -#define log_error(msg, x...) _log(_LOG_ERR, __FILE__, __LINE__, msg, ## x) -#define log_print(msg, x...) _log(_LOG_WARN, __FILE__, __LINE__, msg, ## x) -#define log_verbose(msg, x...) _log(_LOG_NOTICE, __FILE__, __LINE__, msg, ## x) -#define log_very_verbose(msg, x...) _log(_LOG_INFO, __FILE__, __LINE__, msg, ## x) -#define log_debug(msg, x...) _log(_LOG_DEBUG, __FILE__, __LINE__, msg, ## x) - -struct target *create_target(uint64_t start, - uint64_t len, - const char *type, const char *params); - -int add_dev_node(const char *dev_name, uint32_t minor, uint32_t major); -int rm_dev_node(const char *dev_name); -int rename_dev_node(const char *old_name, const char *new_name); -void update_devs(void); - -#define DM_LIB_VERSION "1.00.07-ioctl (2003-11-21)" - -#endif diff --git a/extras/multipath-tools/libdevmapper/list.h b/extras/multipath-tools/libdevmapper/list.h deleted file mode 100644 index df3d32aea8..0000000000 --- a/extras/multipath-tools/libdevmapper/list.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (C) 2001 Sistina Software - * - * This file is released under the LGPL. - */ - -#ifndef _LVM_LIST_H -#define _LVM_LIST_H - -#include <assert.h> - -struct list { - struct list *n, *p; -}; - -#define LIST_INIT(name) struct list name = { &(name), &(name) } - -static inline void list_init(struct list *head) -{ - head->n = head->p = head; -} - -static inline void list_add(struct list *head, struct list *elem) -{ - assert(head->n); - - elem->n = head; - elem->p = head->p; - - head->p->n = elem; - head->p = elem; -} - -static inline void list_add_h(struct list *head, struct list *elem) -{ - assert(head->n); - - elem->n = head->n; - elem->p = head; - - head->n->p = elem; - head->n = elem; -} - -static inline void list_del(struct list *elem) -{ - elem->n->p = elem->p; - elem->p->n = elem->n; -} - -static inline int list_empty(struct list *head) -{ - return head->n == head; -} - -static inline int list_end(struct list *head, struct list *elem) -{ - return elem->n == head; -} - -static inline struct list *list_next(struct list *head, struct list *elem) -{ - return (list_end(head, elem) ? NULL : elem->n); -} - -#define list_iterate(v, head) \ - for (v = (head)->n; v != head; v = v->n) - -#define list_uniterate(v, head, start) \ - for (v = (start)->p; v != head; v = v->p) - -#define list_iterate_safe(v, t, head) \ - for (v = (head)->n, t = v->n; v != head; v = t, t = v->n) - -static inline unsigned int list_size(const struct list *head) -{ - unsigned int s = 0; - const struct list *v; - - list_iterate(v, head) - s++; - - return s; -} - -#define list_item(v, t) \ - ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->list)) - -#define list_struct_base(v, t, h) \ - ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->h)) - -/* Given a known element in a known structure, locate another */ -#define struct_field(v, t, e, f) \ - (((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->e))->f) - -/* Given a known element in a known structure, locate the list head */ -#define list_head(v, t, e) struct_field(v, t, e, list) - -#endif |