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-rw-r--r--payloads/libpayload/libc/lar.c350
1 files changed, 0 insertions, 350 deletions
diff --git a/payloads/libpayload/libc/lar.c b/payloads/libpayload/libc/lar.c
deleted file mode 100644
index 71f240d80b..0000000000
--- a/payloads/libpayload/libc/lar.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- * This file is part of the libpayload project.
- *
- * Copyright (C) 2008 Advanced Micro Devices, Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <endian.h>
-#include <libpayload.h>
-
-#define ROM_RESET_VECTOR 0xFFFFFFF0
-
-static void * next_header(void * cur)
-{
- struct lar_header *header = (struct lar_header *) cur;
- int offset = ((ntohl(header->offset) + ntohl(header->len)) + 15) &
- 0xFFFFFFF0;
-
- return (void *) (cur + offset);
-}
-
-static struct lar_header *lar_get_header(struct LAR *lar, int index)
-{
- int i;
-
- if (index < lar->count)
- return (struct lar_header *) lar->headers[index];
-
- if (lar->eof && index >= lar->eof)
- return NULL;
-
- for(i = lar->count; i <= index; i++) {
- void *next = (i == 0) ?
- lar->start : next_header(lar->headers[i - 1]);
-
- if (strncmp((const char *) next, LAR_MAGIC, 8)) {
- lar->eof = lar->count;
- return NULL;
- }
-
- if (lar->count == lar->alloc) {
- void *tmp = realloc(lar->headers,
- (lar->alloc + 16) * sizeof(void *));
-
- if (tmp == NULL)
- return NULL;
-
- lar->headers = tmp;
- lar->alloc += 16;
- }
-
- lar->headers[lar->count++] = next;
- }
-
- return (struct lar_header *) lar->headers[index];
-}
-
-
-/**
- * Open a LAR stream
- *
- * @param addr The address in memory where the LAR is located.
- * Use NULL to specify the boot LAR
- * @return a pointer to the LAR stream
- */
-
-struct LAR *openlar(void *addr)
-{
- struct LAR *lar;
-
- /* If the address is null, then figure out the start of the
- boot LAR */
-
- if (addr == NULL) {
- u32 size = *((u32 *) (ROM_RESET_VECTOR + 4));
- addr = (void *) ((ROM_RESET_VECTOR + 16) - size);
- }
-
- /* Check the magic to make sure this is a LAR */
- if (strncmp((const char *) addr, LAR_MAGIC, strlen(LAR_MAGIC)))
- return NULL;
-
- lar = calloc(sizeof(struct LAR), 1);
-
- if (!lar)
- return NULL;
-
- lar->start = addr;
-
- /* Preallocate 16 slots in the cache - this saves wear and
- * tear on the heap */
-
- lar->headers = malloc(16 * sizeof(void *));
-
- if (!lar->headers)
- return NULL;
-
- lar->alloc = 16;
- lar->count = lar->eof = 0;
- lar->cindex = 0;
-
- return lar;
-}
-
-/**
- * Close a LAR stream
- *
- * @param lar A pointer to the LAR stream
- * @return Return 0 on success, -1 on error
- */
-
-int closelar(struct LAR *lar)
-{
- if (!lar)
- return 0;
-
- if (lar->headers)
- free(lar->headers);
-
- free(lar);
-
- return 0;
-}
-
-/**
- * Read an entry from the LAR
- *
- * @param lar A pointer to the LAR stream
- * @return A pointer to a larent structure
- representing the next file in the LAR
- */
-
-struct larent *readlar(struct LAR *lar)
-{
- static struct larent _larent;
- struct lar_header *header;
- int nlen;
-
- if (!lar)
- return NULL;
-
- header = lar_get_header(lar, lar->cindex);
-
- if (header == NULL)
- return NULL;
-
- nlen = ntohl(header->offset) - sizeof(*header);
-
- if (nlen > LAR_MAX_PATHLEN - 1)
- nlen = LAR_MAX_PATHLEN - 1;
-
- memcpy((void *) _larent.name, ((char *) header + sizeof(*header)),
- nlen);
-
- _larent.name[nlen] = 0;
-
- lar->cindex++;
-
- return (struct larent *) &_larent;
-}
-
-void rewindlar(struct LAR *lar)
-{
- if (lar != NULL)
- lar->cindex = 0;
-}
-
-static struct lar_header *get_header_by_name(struct LAR *lar, const char *name)
-{
- struct lar_header *header;
- int i;
-
- for(i = 0; ; i++) {
- header = lar_get_header(lar, i);
-
- if (header == NULL)
- return NULL;
-
- if (!strcmp(name, ((char *) header + sizeof(*header))))
- return header;
- }
-}
-
-int larstat(struct LAR *lar, const char *path, struct larstat *buf)
-{
- struct lar_header *header = get_header_by_name(lar, path);
-
- if (header == NULL || buf == NULL)
- return -1;
-
- buf->len = ntohl(header->len);
- buf->reallen = ntohl(header->reallen);
- buf->checksum = ntohl(header->checksum);
- buf->compchecksum = ntohl(header->compchecksum);
- buf->compression = ntohl(header->compression);
- buf->entry = ntohll(header->entry);
- buf->loadaddress = ntohll(header->loadaddress);
- buf->offset = ((u32) header - (u32) lar->start) + ntohl(header->offset);
-
- return 0;
-}
-
-void * larfptr(struct LAR *lar, const char *filename)
-{
- struct lar_header *header = get_header_by_name(lar, filename);
-
- if (header == NULL)
- return NULL;
-
- return (void *) ((u8 *) header + ntohl(header->offset));
-}
-
-/**
- * Verify the checksum on a particular LAR entry
- *
- * @param lar A pointer to the LAR stream
- * @param filename The lar entry to verify
- * @return Return 1 if the entry is valid, 0 if it is not, or -1
- * on error
- */
-
-int lfverify(struct LAR *lar, const char *filename)
-{
- struct lar_header *header = get_header_by_name(lar, filename);
-
- u8 *ptr = (u8 *) header;
- int len = ntohl(header->len) + ntohl(header->offset);
- int offset;
- u32 csum = 0;
-
- if (header == NULL)
- return -1;
-
- /* The checksum needs to be calulated on entire data section,
- * including any padding for the 16 byte alignment (which should
- * be zeros
- */
-
- len = (len + 15) & 0xFFFFFFF0;
-
- for(offset = 0; offset < len; offset += 4) {
- csum += *((u32 *) (ptr + offset));
- }
-
- return (csum == 0xFFFFFFFF) ? 1 : 0;
-}
-
-struct LFILE * lfopen(struct LAR *lar, const char *filename)
-{
- struct LFILE *file;
- struct lar_header *header = get_header_by_name(lar, filename);
-
- if (header == NULL)
- return NULL;
-
- /* FIXME: What other validations do we want to do on the file here? */
-
- file = malloc(sizeof(struct LFILE));
-
- if (file == NULL)
- return NULL;
-
- file->lar = lar;
- file->header = header;
- file->size = ntohl(header->len);
- file->start = ((u8 *) header + ntohl(header->offset));
- file->offset = 0;
-
- return file;
-}
-
-void *lfmap(struct LFILE *file, int offset)
-{
- if (file == NULL)
- return (void *) -1;
-
- if (offset > file->size)
- return (void *) -1;
-
- return (void *) (file->start + offset);
-};
-
-int lfread(void *ptr, size_t size, size_t nmemb, struct LFILE *stream)
-{
- size_t tsize, actual;
- size_t remain = stream->size - stream->offset;
-
- if (!stream || !remain)
- return 0;
-
- tsize = (size * nmemb);
- actual = (tsize > remain) ? remain : tsize;
-
- memcpy(ptr, (void *) (stream->start + stream->offset), actual);
- stream->offset += actual;
-
- return actual;
-}
-
-int lfseek(struct LFILE *file, long offset, int whence)
-{
- int o = file->offset;
-
- switch(whence) {
- case SEEK_SET:
- o = offset;
- break;
- case SEEK_CUR:
- o += offset;
- break;
-
- case SEEK_END:
- return -1;
- }
-
- if (o < 0 || o > file->size)
- return -1;
-
- file->offset = o;
- return file->offset;
-}
-
-int lfclose(struct LFILE *file)
-{
- if (file)
- free(file);
- return 0;
-}
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