diff options
Diffstat (limited to 'lib_i386')
| -rw-r--r-- | lib_i386/i386_linux.c | 44 | ||||
| -rw-r--r-- | lib_i386/zimage.c | 33 |
2 files changed, 33 insertions, 44 deletions
diff --git a/lib_i386/i386_linux.c b/lib_i386/i386_linux.c index b4a6f5a..67a78c4 100644 --- a/lib_i386/i386_linux.c +++ b/lib_i386/i386_linux.c @@ -50,7 +50,7 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], { void *base_ptr; - ulong len = 0, checksum; + ulong len = 0; ulong initrd_start, initrd_end; ulong data; image_header_t *hdr = &header; @@ -60,48 +60,37 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], */ if (argc >= 3) { addr = simple_strtoul(argv[2], NULL, 16); + hdr = (image_header_t *)addr; printf ("## Loading Ramdisk Image at %08lx ...\n", addr); - /* Copy header so we can blank CRC field for re-calculation */ - memcpy (&header, (char *)addr, sizeof(image_header_t)); - - if (ntohl(hdr->ih_magic) != IH_MAGIC) { + if (!image_check_magic (hdr)) { printf ("Bad Magic Number\n"); do_reset (cmdtp, flag, argc, argv); } - data = (ulong)&header; - len = sizeof(image_header_t); - - checksum = ntohl(hdr->ih_hcrc); - hdr->ih_hcrc = 0; - - if (crc32 (0, (char *)data, len) != checksum) { + if (!image_check_hcrc (hdr)) { printf ("Bad Header Checksum\n"); do_reset (cmdtp, flag, argc, argv); } print_image_hdr (hdr); - data = addr + sizeof(image_header_t); - len = ntohl(hdr->ih_size); + data = image_get_data (hdr); + len = image_get_data_size (hdr); if (verify) { - ulong csum = 0; - printf (" Verifying Checksum ... "); - csum = crc32 (0, (char *)data, len); - if (csum != ntohl(hdr->ih_dcrc)) { + if (!image_check_dcrc (hdr)) { printf ("Bad Data CRC\n"); do_reset (cmdtp, flag, argc, argv); } printf ("OK\n"); } - if ((hdr->ih_os != IH_OS_LINUX) || - (hdr->ih_arch != IH_CPU_I386) || - (hdr->ih_type != IH_TYPE_RAMDISK) ) { + if (!image_check_os (hdr, IH_OS_LINUX) || + !image_check_arch (hdr, IH_ARCH_I386) || + !image_check_type (hdr, IH_TYPE_RAMDISK)) { printf ("No Linux i386 Ramdisk Image\n"); do_reset (cmdtp, flag, argc, argv); } @@ -109,8 +98,8 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], /* * Now check if we have a multifile image */ - } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) { - ulong tail = ntohl(len_ptr[0]) % 4; + } else if (image_check_type (hdr, IH_TYPE_MULTI) && (len_ptr[1])) { + ulong tail = image_to_cpu (len_ptr[0]) % 4; int i; /* skip kernel length and terminator */ @@ -119,12 +108,12 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], for (i=1; len_ptr[i]; ++i) data += 4; /* add kernel length, and align */ - data += ntohl(len_ptr[0]); + data += image_to_cpu (len_ptr[0]); if (tail) { data += 4 - tail; } - len = ntohl(len_ptr[1]); + len = image_to_cpu (len_ptr[1]); } else { /* @@ -152,12 +141,13 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], } /* if multi-part image, we need to advance base ptr */ - if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) { + if (image_check_type (hdr, IH_TYPE_MULTI) && (len_ptr[1])) { int i; for (i=0, addr+=sizeof(int); len_ptr[i++]; addr+=sizeof(int)); } - base_ptr = load_zimage((void*)addr + sizeof(image_header_t), ntohl(hdr->ih_size), + base_ptr = load_zimage((void*)addr + image_get_header_size (), + image_get_data_size (hdr), initrd_start, initrd_end-initrd_start, 0); if (NULL == base_ptr) { diff --git a/lib_i386/zimage.c b/lib_i386/zimage.c index 3510f2f..20f9f8d 100644 --- a/lib_i386/zimage.c +++ b/lib_i386/zimage.c @@ -251,25 +251,24 @@ image_header_t *fake_zimage_header(image_header_t *hdr, void *ptr, int size) #else checksum = 0; #endif - memset(hdr, 0, sizeof(image_header_t)); + memset(hdr, 0, image_get_header_size ()); /* Build new header */ - hdr->ih_magic = htonl(IH_MAGIC); - hdr->ih_time = 0; - hdr->ih_size = htonl(size); - hdr->ih_load = htonl(ZIMAGE_LOAD); - hdr->ih_ep = 0; - hdr->ih_dcrc = htonl(checksum); - hdr->ih_os = IH_OS_LINUX; - hdr->ih_arch = IH_CPU_I386; - hdr->ih_type = IH_TYPE_KERNEL; - hdr->ih_comp = IH_COMP_NONE; - - strncpy((char *)hdr->ih_name, "(none)", IH_NMLEN); - - checksum = crc32(0,(const char *)hdr,sizeof(image_header_t)); - - hdr->ih_hcrc = htonl(checksum); + image_set_magic (hdr, IH_MAGIC); + image_set_time (hdr, 0); + image_set_size (hdr, size); + image_set_load (hdr, ZIMAGE_LOAD); + image_set_ep (hdr, 0); + image_set_dcrc (hdr, checksum); + image_set_os (hdr, IH_OS_LINUX); + image_set_arch (hdr, IH_ARCH_I386); + image_set_type (hdr, IH_TYPE_KERNEL); + image_set_comp (hdr, IH_COMP_NONE); + + image_set_name (hdr, "(none)"); + + checksum = crc32 (0, (const char *)hdr, image_get_header_size ()); + image_set_hcrc (hdr, checksum); return hdr; } |