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Diffstat (limited to 'ubi-utils/src/pfi.c')
| -rw-r--r-- | ubi-utils/src/pfi.c | 458 |
1 files changed, 0 insertions, 458 deletions
diff --git a/ubi-utils/src/pfi.c b/ubi-utils/src/pfi.c deleted file mode 100644 index fa835e2..0000000 --- a/ubi-utils/src/pfi.c +++ /dev/null @@ -1,458 +0,0 @@ -/* - * Copyright (c) International Business Machines Corp., 2006 - * - * 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. - */ - -/* - * @file pfi.c - * - * @author Oliver Lohmann - * Andreas Arnez - * Joern Engel - * Frank Haverkamp - * - * @brief libpfi holds all code to create and process pfi files. - * - * <oliloh@de.ibm.com> Wed Feb 8 11:38:22 CET 2006: Initial creation. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <syslog.h> -#include <stdarg.h> -#include <errno.h> - -#include "pfi.h" - -#define PFI_MAGIC "PFI!\n" -#define PFI_DATA "DATA\n" /* The same size as PFI_MAGIC */ -#define PFI_MAGIC_LEN 5 - -static const char copyright [] __attribute__((unused)) = - "Copyright (c) International Business Machines Corp., 2006"; - -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, - key_raw_starts, - key_raw_total_size, - num_keys, -}; - -struct pfi_header { - char 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]; -}; - - -#define PFI_MANDATORY 0x0001 -#define PFI_STRING 0x0002 -#define PFI_LISTVALUE 0x0004 /* comma seperated list of nums */ -#define PFI_MANDATORY_UBI 0x0008 -#define PFI_MANDATORY_RAW 0x0010 - -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 }, - { key_raw_starts, "raw_starts", PFI_MANDATORY_RAW | PFI_STRING }, - { key_raw_total_size, "raw_total_size", PFI_MANDATORY_RAW }, -}; - -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[] = {"raw", "ubi"}; /* order isn't arbitrary! */ - -/* 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)) - -#define PFI_IS_RAW(mode) \ - (((mode) != NULL) && (strcmp("raw", (mode)) == 0)) - -/** - * @return <0 On Error. - * >=0 Mode no. - */ -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 (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 if (PFI_IS_RAW(mode)) { - to_check |= PFI_MANDATORY_RAW; - } - 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 (pfi_header *head) -{ - int i; - pfi_header self = (pfi_header) 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 (pfi_header *head) -{ - int i; - 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 (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 (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 (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 (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_write (FILE *out, pfi_header head) -{ - int i; - int ret; - - pfi_header_setnumber(head, "version", PFI_HDRVERSION); - - if ((ret = check_valid(head)) != 0) - return ret; - - /* OK. Now write the header. */ - - ret = fwrite(PFI_MAGIC, 1, PFI_MAGIC_LEN, out); - if (ret < PFI_MAGIC_LEN) - return ret; - - - for (i = 0; i < num_keys; i++) { - if (!head->defined[i]) - continue; - - ret = fprintf(out, "%s=", key_desc[i].name); - if (ret < 0) - return PFI_EFILE; - - if (key_desc[i].flags & PFI_STRING) { - ret = fprintf(out, "%s", head->value[i].str); - if (ret < 0) - return PFI_EFILE; - } else { - ret = fprintf(out, "0x%8x", head->value[i].num); - if (ret < 0) - return PFI_EFILE; - - } - ret = fprintf(out, "\n"); - if (ret < 0) - return PFI_EFILE; - } - ret = fprintf(out, "\n"); - if (ret < 0) - return PFI_EFILE; - - ret = fflush(out); - if (ret != 0) - return PFI_EFILE; - - return 0; -} - -int pfi_header_read (FILE *in, pfi_header head) -{ - char magic[PFI_MAGIC_LEN]; - char mode[PFI_KEYWORD_LEN]; - char buf[256]; - - if (PFI_MAGIC_LEN != fread(magic, 1, PFI_MAGIC_LEN, in)) - return PFI_EFILE; - if (memcmp(magic, PFI_MAGIC, PFI_MAGIC_LEN) != 0) { - if (memcmp(magic, PFI_DATA, PFI_MAGIC_LEN) == 0) { - return PFI_DATA_START; - } - return PFI_ENOHEADER; - } - - 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 pfi_header_dump (FILE *out, pfi_header head __attribute__((__unused__))) -{ - fprintf(out, "Sorry not implemented yet. Write mail to " - "Andreas Arnez and complain!\n"); - return 0; -} - -int pfi_read (FILE *in, pfi_read_func func, void *priv_data) -{ - int rc; - pfi_header header; - - rc = pfi_header_init (&header); - if (0 != rc) - return rc; - if (!func) - return PFI_EINVAL; - - while ((0 == rc) && !feof(in)) { - /* - * Read header and check consistency of the fields. - */ - rc = pfi_header_read( in, header ); - if (0 != rc) - break; - if (func) { - rc = func(in, header, priv_data); - if (rc != 0) - break; - } - } - - pfi_header_destroy(&header); - return rc; -} |