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/*
* This file is part of the bayou project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 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 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.
*/
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <libgen.h>
#include "liblar.h"
#include "pbuilder.h"
void do_lzma_compress(char *in, int in_len, char *out, int *out_len);
int add_bpt_to_lar(struct LAR *lar, struct config *config)
{
char *buffer;
int ret, i, len = sizeof(struct bpt_config);
struct bpt_config *cfg;
struct LARAttr attr;
char *ptr;
for (i = 0; i < config->n_entries; i++) {
len += sizeof(struct bpt_pentry);
if (config->entries[i]->type != BPT_TYPE_CHAIN)
len += ((strlen(config->entries[i]->larname)
+ 15) & ~0x0F);
}
buffer = calloc(len, 1);
if (buffer == NULL)
return -1;
cfg = (struct bpt_config *)buffer;
cfg->id = BPT_ID;
cfg->timeout = config->timeout;
cfg->entries = config->n_entries;
ptr = buffer + sizeof(struct bpt_config);
for (i = 0; i < config->n_entries; i++) {
int nlen = 0;
struct bpt_pentry *pentry = (struct bpt_pentry *)ptr;
pentry->index = config->entries[i]->index;
pentry->parent = config->entries[i]->parent;
pentry->type = config->entries[i]->type;
pentry->flags = config->entries[i]->flags;
strncpy((char *)pentry->title,
(char *)config->entries[i]->title,
sizeof(pentry->title));
if (config->entries[i]->type != BPT_TYPE_CHAIN) {
nlen = strlen(config->entries[i]->larname);
nlen = (nlen + 15) & ~0x0F;
strcpy((char *)(ptr + sizeof(struct bpt_pentry)),
config->entries[i]->larname);
pentry->nlen = nlen;
}
ptr += sizeof(struct bpt_pentry);
if (config->entries[i]->type != BPT_TYPE_CHAIN)
ptr += nlen;
}
LAR_SetAttrs(&attr, "bayou_payload_table", ALGO_NONE);
ret = LAR_AppendBuffer(lar, (unsigned char *)buffer, len, &attr);
free(buffer);
return ret;
}
struct lfile {
char *file;
char *larname;
};
int n_lfiles;
int create_lar_from_config(const char *input, const char *output)
{
struct config config;
FILE *stream;
struct LAR *lar;
struct LARAttr attr;
int i, j, ret = -1;
struct lfile *lfiles;
stream = fopen(input, "r");
if (stream == NULL) {
warn("E: Couldn't open %s for reading\n", input);
return -1;
}
memset(&config, 0, sizeof(config));
parseconfig(stream, &config);
fclose(stream);
lar = LAR_Create(output);
if (lar == NULL) {
warn("E: Couldn't create a new lar file\n");
return -1;
}
LAR_SetCompressionFuncs(lar, ALGO_LZMA, do_lzma_compress, NULL);
lfiles = calloc(sizeof(struct lfile), config.n_entries);
if (lfiles == NULL) {
warn("E: Couldn't allocate memory: %m\n");
return -1;
}
for (i = 0; i < config.n_entries; i++) {
/* Master chain entries don't have files associated with them. */
if (config.entries[i]->type == BPT_TYPE_CHAIN)
continue;
if (access(config.entries[i]->file, R_OK)) {
warn("E: Could not find file %s\n",
config.entries[i]->file);
goto err;
}
if (config.entries[i]->larname == NULL) {
config.entries[i]->larname =
strdup(basename(config.entries[i]->file));
if (config.entries[i]->larname == NULL) {
warn("E: Could not allocate memory for the default name\n");
goto err;
}
}
/*
* Add the file to the list of files to add to the LAR - skip
* any duplicates, but be on the lookout for the same LAR name
* attached to a different file.
*/
for (j = 0; j < n_lfiles; j++) {
if (!strcmp(lfiles[j].larname,
config.entries[i]->larname)) {
if (strcmp(lfiles[j].file,
config.entries[i]->file)) {
warn("E: LAR name '%s' has already been used\n", config.entries[i]->larname);
goto err;
}
break;
}
}
if (j == n_lfiles) {
lfiles[n_lfiles].file = config.entries[i]->file;
lfiles[n_lfiles++].larname = config.entries[i]->larname;
}
}
/* Add all the files to the LAR. */
for (i = 0; i < n_lfiles; i++) {
LAR_SetAttrs(&attr, lfiles[i].larname, ALGO_LZMA);
if (LAR_AppendFile(lar, lfiles[i].file, &attr)) {
warn("E: Could not add %s to the LAR\n",
lfiles[i].file);
goto err;
}
}
ret = add_bpt_to_lar(lar, &config);
err:
LAR_Close(lar);
return ret;
}
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