diff options
Diffstat (limited to 'payloads/libpayload/libc')
-rw-r--r-- | payloads/libpayload/libc/Makefile.inc | 3 | ||||
-rw-r--r-- | payloads/libpayload/libc/lar.c | 350 |
2 files changed, 0 insertions, 353 deletions
diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc index 272cda9ac4..b3c0f762d7 100644 --- a/payloads/libpayload/libc/Makefile.inc +++ b/payloads/libpayload/libc/Makefile.inc @@ -39,9 +39,6 @@ libc-$(CONFIG_LP_LIBC) += hexdump.c libc-$(CONFIG_LP_LIBC) += die.c libc-$(CONFIG_LP_LIBC) += coreboot.c -# should be moved to coreboot directory -libc-$(CONFIG_LP_LAR) += lar.c - ifeq ($(CONFIG_LP_ARCH_MIPS),y) libc-$(CONFIG_LP_LIBC) += 64bit_div.c endif 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; -} |