summaryrefslogtreecommitdiff
path: root/ubi-utils/src/libpfi.c
diff options
context:
space:
mode:
Diffstat (limited to 'ubi-utils/src/libpfi.c')
-rw-r--r--ubi-utils/src/libpfi.c628
1 files changed, 0 insertions, 628 deletions
diff --git a/ubi-utils/src/libpfi.c b/ubi-utils/src/libpfi.c
deleted file mode 100644
index 6de24ea..0000000
--- a/ubi-utils/src/libpfi.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * A library to work with pfi files.
- *
- * Authors Oliver Lohmann
- * Andreas Arnez
- * Joern Engel
- * Frank Haverkamp
- * Artem Bityutskiy
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <errno.h>
-
-#include <mtd/ubi-header.h>
-#include <libpfi.h>
-#include "common.h"
-#include "bootenv.h"
-
-#define PROGRAM_NAME "libpfi"
-
-#define PFI_MAGIC "PFI!\n"
-#define PFI_MAGIC_LEN (sizeof(PFI_MAGIC) - 1)
-#define PFI_DATA "DATA\n"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-#define PFI_MANDATORY 0x0001
-#define PFI_STRING 0x0002
-#define PFI_LISTVALUE 0x0004
-#define PFI_MANDATORY_UBI 0x0008
-
-enum key_id {
- /* version 1 */
- key_version, /* must be index position 0! */
- key_mode,
- key_size,
- key_crc,
- key_label,
- key_flags,
- key_ubi_ids,
- key_ubi_size,
- key_ubi_type,
- key_ubi_names,
- key_ubi_alignment,
- num_keys,
-};
-
-struct pfi_header {
- uint8_t defined[num_keys]; /* reserve all possible keys even if
- version does not require this. */
- int mode_no; /* current mode no. -> can only increase */
- union {
- char *str;
- uint32_t num;
- } value[num_keys];
-};
-
-struct key_descriptor {
- enum key_id id;
- const char *name;
- uint32_t flags;
-};
-
-static const struct key_descriptor key_desc_v1[] = {
- { key_version, "version", PFI_MANDATORY },
- { key_mode, "mode", PFI_MANDATORY | PFI_STRING },
- { key_size, "size", PFI_MANDATORY },
- { key_crc, "crc", PFI_MANDATORY },
- { key_label, "label", PFI_MANDATORY | PFI_STRING },
- { key_flags, "flags", PFI_MANDATORY },
- { key_ubi_ids, "ubi_ids", PFI_MANDATORY_UBI | PFI_STRING },
- { key_ubi_size, "ubi_size", PFI_MANDATORY_UBI },
- { key_ubi_type, "ubi_type", PFI_MANDATORY_UBI | PFI_STRING },
- { key_ubi_names, "ubi_names", PFI_MANDATORY_UBI | PFI_STRING },
- { key_ubi_alignment, "ubi_alignment", PFI_MANDATORY_UBI },
-};
-
-static const struct key_descriptor *key_descriptors[] = {
- NULL,
- key_desc_v1, /* version 1 */
-};
-
-static const int key_descriptors_max[] = {
- 0, /* version 0 */
- sizeof(key_desc_v1)/sizeof(struct key_descriptor), /* version 1 */
-};
-
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
-
-static const char* modes[] = {"ubi"};
-
-/* latest version contains all possible keys */
-static const struct key_descriptor *key_desc = key_desc_v1;
-
-#define PFI_IS_UBI(mode) \
- (((mode) != NULL) && (strcmp("ubi", (mode)) == 0))
-
-static int get_mode_no(const char *mode)
-{
- int i;
-
- for (i = 0; i < (int)ARRAY_SIZE(modes); i++)
- if (strcmp(mode, modes[i]) == 0)
- return i;
- return -1;
-}
-
-static int
-find_key_by_name (const char *name)
-{
- int i;
-
- for (i = 0; i < num_keys; i++) {
- if (strcmp(name, key_desc[i].name) == 0)
- return i;
- }
- return -1;
-}
-
-static int
-check_valid (struct pfi_header *head)
-{
- int i;
- int max_keys;
- uint32_t version;
- const char *mode;
- const struct key_descriptor *desc;
- uint32_t to_check = PFI_MANDATORY;
-
- /*
- * For the validity check the list of possible keys depends on
- * the version of the PFI file used.
- */
- version = head->value[key_version].num;
- if (version > PFI_HDRVERSION)
- return PFI_ENOHEADER;
-
- max_keys = key_descriptors_max[version];
- desc = key_descriptors[version];
-
- if (!desc)
- return PFI_ENOVERSION;
-
- mode = head->value[key_mode].str;
- if (PFI_IS_UBI(mode)) {
- to_check |= PFI_MANDATORY_UBI;
- }
- else { /* neither UBI nor RAW == ERR */
- return PFI_EINSUFF;
- }
-
- for (i = 0; i < max_keys; i++) {
- if ((desc[i].flags & to_check) && !head->defined[i]) {
- fprintf(stderr, "libpfi: %s missing\n", desc[i].name);
- return PFI_EINSUFF;
- }
- }
-
- return 0;
-}
-
-int pfi_header_init (struct pfi_header **head)
-{
- int i;
- struct pfi_header *self = malloc(sizeof(*self));
-
- *head = self;
- if (self == NULL)
- return PFI_ENOMEM;
-
- /* initialize maximum number of possible keys */
- for (i = 0; i < num_keys; i++) {
- memset(self, 0, sizeof(*self));
- self->defined[i] = 0;
- }
-
- return 0;
-}
-
-int pfi_header_destroy (struct pfi_header **head)
-{
- int i;
- struct pfi_header *self = *head;
-
- for (i = 0; i < num_keys; i++) {
- if (self->defined[i] && (key_desc[i].flags & PFI_STRING) &&
- self->value[i].str) {
- free(self->value[i].str);
- }
- }
- free(*head);
- *head = NULL;
- return 0;
-}
-
-int pfi_header_setnumber (struct pfi_header *head,
- const char *key, uint32_t value)
-{
- int key_id = find_key_by_name(key);
-
- if (key_id < 0)
- return PFI_EUNDEF;
-
- if (key_desc[key_id].flags & PFI_STRING)
- return PFI_EBADTYPE;
-
- head->value[key_id].num = value;
- head->defined[key_id] = 1;
- return 0;
-}
-
-int pfi_header_setvalue (struct pfi_header *head,
- const char *key, const char *value)
-{
- int key_id = find_key_by_name(key);
-
- if (value == NULL)
- return PFI_EINSUFF;
-
- if ((key_id < 0) || (key_id >= num_keys))
- return PFI_EUNDEF;
-
- if (key_desc[key_id].flags & PFI_STRING) {
- /*
- * The value is a string. Copy to a newly allocated
- * buffer. Delete the old value, if already set.
- */
- size_t len = strlen(value) + 1;
- char *old_str = NULL;
- char *str;
-
- old_str = head->value[key_id].str;
- if (old_str != NULL)
- free(old_str);
-
- str = head->value[key_id].str = (char *) malloc(len);
- if (str == NULL)
- return PFI_ENOMEM;
-
- strcpy(str, value);
- } else {
- int len;
- int ret;
- /* FIXME: here we assume that the value is always
- given in hex and starts with '0x'. */
- ret = sscanf(value, "0x%x%n", &head->value[key_id].num, &len);
- if (ret < 1 || value[len] != '\0')
- return PFI_EBADTYPE;
- }
- head->defined[key_id] = 1;
- return 0;
-}
-
-int pfi_header_getnumber (struct pfi_header *head,
- const char *key, uint32_t *value)
-{
- int key_id = find_key_by_name(key);
-
- if (key_id < 0)
- return PFI_EUNDEF;
-
- if (key_desc[key_id].flags & PFI_STRING)
- return PFI_EBADTYPE;
-
- if (!head->defined[key_id])
- return PFI_EUNDEF;
-
- *value = head->value[key_id].num;
- return 0;
-}
-
-int pfi_header_getstring (struct pfi_header *head,
- const char *key, char *value, size_t size)
-{
- int key_id = find_key_by_name(key);
-
- if (key_id < 0)
- return PFI_EUNDEF;
-
- if (!(key_desc[key_id].flags & PFI_STRING))
- return PFI_EBADTYPE;
-
- if (!head->defined[key_id])
- return PFI_EUNDEF;
-
- strncpy(value, head->value[key_id].str, size-1);
- value[size-1] = '\0';
- return 0;
-}
-
-int pfi_header_read(FILE *in, struct pfi_header *head)
-{
- char mode[PFI_KEYWORD_LEN];
- char buf[256];
-
- if (fread(buf, 1, PFI_MAGIC_LEN, in) != PFI_MAGIC_LEN) {
- errmsg("cannot read %d bytes", PFI_MAGIC_LEN);
- perror("fread");
- return -1;
- }
-
- if (memcmp(buf, PFI_MAGIC, PFI_MAGIC_LEN) != 0) {
- if (memcmp(buf, PFI_DATA, PFI_MAGIC_LEN) == 0)
- return 1;
-
- errmsg("PFI magic \"%s\" not found", PFI_MAGIC);
- return -1;
- }
-
- while (fgets(buf, sizeof(buf), in) != NULL && buf[0] != '\n') {
- char *value;
- char *end;
- value = strchr(buf, '=');
- if (value == NULL)
- return PFI_ENOHEADER;
-
- *value = '\0';
- value++;
- end = strchr(value, '\n');
- if (end)
- *end = '\0';
-
- if (pfi_header_setvalue(head, buf, value))
- return PFI_ENOHEADER;
- }
-
- if (check_valid(head) != 0)
- return PFI_ENOHEADER;
-
- /* set current mode no. in head */
- pfi_header_getstring(head, "mode", mode, PFI_KEYWORD_LEN);
- if (head->mode_no > get_mode_no(mode)) {
- return PFI_EMODE;
- }
- head->mode_no = get_mode_no(mode);
- return 0;
-}
-int
-read_pfi_ubi(struct pfi_header *pfi_hd, struct pfi_ubi **pfi_ubi,
- const char *label)
-{
- int err = 0;
- const char** tmp_names = NULL;
- char tmp_str[PFI_KEYWORD_LEN];
- bootenv_list_t ubi_id_list = NULL;
- bootenv_list_t ubi_name_list = NULL;
- struct pfi_ubi *res;
- uint32_t i;
- size_t size;
-
- res = (struct pfi_ubi *) calloc(1, sizeof(struct pfi_ubi));
- if (!res)
- return -ENOMEM;
-
- err = pfi_header_getnumber(pfi_hd, "size", &(res->data_size));
- if (err != 0) {
- errmsg("cannot read 'size' from PFI.");
- goto err;
- }
-
- err = pfi_header_getnumber(pfi_hd, "crc", &(res->crc));
- if (err != 0) {
- errmsg("cannot read 'crc' from PFI.");
- goto err;
- }
-
- err = pfi_header_getstring(pfi_hd, "ubi_ids", tmp_str, PFI_KEYWORD_LEN);
- if (err != 0) {
- errmsg("cannot read 'ubi_ids' from PFI.");
- goto err;
- }
-
- err = bootenv_list_create(&ubi_id_list);
- if (err != 0) {
- goto err;
- }
- err = bootenv_list_create(&ubi_name_list);
- if (err != 0) {
- goto err;
- }
-
- err = bootenv_list_import(ubi_id_list, tmp_str);
- if (err != 0) {
- errmsg("cannot translate PFI value: %s", tmp_str);
- goto err;
- }
-
- err = bootenv_list_to_num_vector(ubi_id_list, &size,
- &(res->ids));
- res->ids_size = size;
- if (err != 0) {
- errmsg("cannot create numeric value array: %s", tmp_str);
- goto err;
- }
-
- if (res->ids_size == 0) {
- err = -1;
- errmsg("sanity check failed: No ubi_ids specified.");
- goto err;
- }
-
- err = pfi_header_getstring(pfi_hd, "ubi_type",
- tmp_str, PFI_KEYWORD_LEN);
- if (err != 0) {
- errmsg("cannot read 'ubi_type' from PFI.");
- goto err;
- }
- if (strcmp(tmp_str, "static") == 0)
- res->vol_type = UBI_VID_STATIC;
- else if (strcmp(tmp_str, "dynamic") == 0)
- res->vol_type = UBI_VID_DYNAMIC;
- else {
- errmsg("unknown ubi_type in PFI.");
- goto err;
- }
-
- err = pfi_header_getnumber(pfi_hd, "ubi_alignment", &(res->alignment));
- if (err != 0) {
- errmsg("cannot read 'ubi_alignment' from PFI.");
- goto err;
- }
-
- err = pfi_header_getnumber(pfi_hd, "ubi_size", &(res->size));
- if (err != 0) {
- errmsg("cannot read 'ubi_size' from PFI.");
- goto err;
- }
-
- err = pfi_header_getstring(pfi_hd, "ubi_names",
- tmp_str, PFI_KEYWORD_LEN);
- if (err != 0) {
- errmsg("cannot read 'ubi_names' from PFI.");
- goto err;
- }
-
- err = bootenv_list_import(ubi_name_list, tmp_str);
- if (err != 0) {
- errmsg("cannot translate PFI value: %s", tmp_str);
- goto err;
- }
- err = bootenv_list_to_vector(ubi_name_list, &size,
- &(tmp_names));
- res->names_size = size;
- if (err != 0) {
- errmsg("cannot create string array: %s", tmp_str);
- goto err;
- }
-
- if (res->names_size != res->ids_size) {
- errmsg("sanity check failed: ubi_ids list does not match "
- "sizeof ubi_names list.");
- err = -1;
- }
-
- /* copy tmp_names to own structure */
- res->names = calloc(1, res->names_size * sizeof (char*));
- if (res->names == NULL)
- goto err;
-
- for (i = 0; i < res->names_size; i++) {
- res->names[i] = calloc(PFI_UBI_VOL_NAME_LEN + 1, sizeof(char));
- if (res->names[i] == NULL)
- goto err;
- strncpy(res->names[i], tmp_names[i], PFI_UBI_VOL_NAME_LEN + 1);
- }
-
- goto out;
-
- err:
- if (res) {
- if (res->names) {
- for (i = 0; i < res->names_size; i++) {
- if (res->names[i]) {
- free(res->names[i]);
- }
- }
- free(res->names);
- }
- if (res->ids) {
- free(res->ids);
- }
- free(res);
- res = NULL;
- }
-
- out:
- bootenv_list_destroy(&ubi_id_list);
- bootenv_list_destroy(&ubi_name_list);
- if (tmp_names != NULL)
- free(tmp_names);
- *pfi_ubi = res;
- return err;
-}
-
-int
-free_pfi_ubi(struct pfi_ubi **pfi_ubi)
-{
- size_t i;
- struct pfi_ubi *tmp = *pfi_ubi;
- if (tmp) {
- if (tmp->ids)
- free(tmp->ids);
- if (tmp->names) {
- for (i = 0; i < tmp->names_size; i++) {
- if (tmp->names[i]) {
- free(tmp->names[i]);
- }
- }
- free(tmp->names);
- }
- free(tmp);
- }
- *pfi_ubi = NULL;
-
- return 0;
-}
-
-int read_pfi_headers(struct list_entry **ubi_list, FILE *fp_pfi)
-{
- int err = 0;
- long long data_offs = 0;
- long fpos;
- char mode[PFI_KEYWORD_LEN];
- char label[PFI_LABEL_LEN];
- struct list_entry *tmp;
-
- *ubi_list = list_empty(); struct pfi_ubi *ubi = NULL;
- struct pfi_header *pfi_header = NULL;
-
- /* read all headers from PFI and store them in lists */
- err = pfi_header_init(&pfi_header);
- if (err != 0) {
- errmsg("cannot initialize pfi header.");
- goto err;
- }
- while ((err == 0) && !feof(fp_pfi)) {
- err = pfi_header_read(fp_pfi, pfi_header);
- if (err != 0) {
- if (err == 1) {
- err = 0;
- break; /* data section starts,
- all headers read */
- }
- else {
- goto err;
- }
- }
- err = pfi_header_getstring(pfi_header, "label", label,
- PFI_LABEL_LEN);
- if (err != 0) {
- errmsg("cannot read 'label' from PFI.");
- goto err;
- }
- err = pfi_header_getstring(pfi_header, "mode", mode,
- PFI_KEYWORD_LEN);
- if (err != 0) {
- errmsg("cannot read 'mode' from PFI.");
- goto err;
- }
- if (strcmp(mode, "ubi") == 0) {
- err = read_pfi_ubi(pfi_header, &ubi, label);
- if (err != 0) {
- goto err;
- }
- *ubi_list = append_elem(ubi, *ubi_list);
- }
- else {
- errmsg("recvieved unknown mode from PFI: %s", mode);
- goto err;
- }
- ubi->data_offs = data_offs;
- data_offs += ubi->data_size;
- }
-
- fpos = ftell(fp_pfi);
- if (fpos == -1) {
- errmsg("ftell returned error");
- perror("ftell");
- goto err;
- }
-
- list_for_each(ubi, tmp, *ubi_list)
- ubi->data_offs += fpos;
-
- goto out;
-
- err:
- *ubi_list = remove_all((free_func_t)&free_pfi_ubi, *ubi_list);
- out:
- pfi_header_destroy(&pfi_header);
- return err;
-
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 10:19:01 +0000