diff options
| -rw-r--r-- | fs/jffs2/jffs2_private.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/fs/jffs2/jffs2_private.h b/fs/jffs2/jffs2_private.h new file mode 100644 index 000000000..ca0af1f9a --- /dev/null +++ b/fs/jffs2/jffs2_private.h @@ -0,0 +1,78 @@ +#ifndef jffs2_private_h +#define jffs2_private_h + +#include <jffs2/jffs2.h> + +struct b_node { + u32 offset; + struct b_node *next; +}; + +struct b_lists { + char *partOffset; + struct b_node *dirListTail; + struct b_node *dirListHead; + u32 dirListCount; + u32 dirListMemBase; + struct b_node *fragListTail; + struct b_node *fragListHead; + u32 fragListCount; + u32 fragListMemBase; + +}; +struct b_compr_info { + u32 num_frags; + u32 compr_sum; + u32 decompr_sum; +}; + +struct b_jffs2_info { + struct b_compr_info compr_info[JFFS2_NUM_COMPR]; +}; + +static inline int +hdr_crc(struct jffs2_unknown_node *node) +{ + u32 crc = crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4); + u32 crc_blah = crc32_no_comp(~0, (unsigned char *)node, sizeof(struct jffs2_unknown_node) - 4); + + crc_blah ^= ~0; + + if (node->hdr_crc != crc) { + return 0; + } else { + return 1; + } +} + +static inline int +dirent_crc(struct jffs2_raw_dirent *node) +{ + if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_dirent) - 8)) { + return 0; + } else { + return 1; + } +} + +static inline int +dirent_name_crc(struct jffs2_raw_dirent *node) +{ + if (node->name_crc != crc32_no_comp(0, (unsigned char *)&(node->name), node->nsize)) { + return 0; + } else { + return 1; + } +} + +static inline int +inode_crc(struct jffs2_raw_inode *node) +{ + if (node->node_crc != crc32_no_comp(0, (unsigned char *)node, sizeof(struct jffs2_raw_inode) - 8)) { + return 0; + } else { + return 1; + } +} + +#endif /* jffs2_private.h */ |