diff options
Diffstat (limited to 'recipes-devtools/dosfstools/dosfstools/fix_populated_dosfs_creation.patch')
| -rw-r--r-- | recipes-devtools/dosfstools/dosfstools/fix_populated_dosfs_creation.patch | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/recipes-devtools/dosfstools/dosfstools/fix_populated_dosfs_creation.patch b/recipes-devtools/dosfstools/dosfstools/fix_populated_dosfs_creation.patch new file mode 100644 index 0000000..9d7f732 --- /dev/null +++ b/recipes-devtools/dosfstools/dosfstools/fix_populated_dosfs_creation.patch @@ -0,0 +1,489 @@ +Upstream-Status: Inappropriate + +This patch fixes populated dosfs image creation with directory +structures. Earlier it was causing segfault; and only image +population with no subdirectories was working. + +Issues fixed: +1. (dir->count == dir->entries) check was only needed for root + directory entries. And this check is wrong for non-root + directories. +2. For each dir entry 2 dir->table entries were needed, one for + the file/dir and 2nd for long file name support. Earlier long + name support was added for filenames but the 2nd entry + allocation, initialization & counting was missed. +3. The memory clearing was missed at the code path after dir->table + memroy allocation. +4. Add entries for . & .. directories in all non-root directories. +5. The . directory points to the correct entry in fat now. +6. All directoriy entries' size was not zero as required for dosfsck, + Now all directory entries' size is zero. + +Enhancements: +1. Added support for long names for directory names. This is same + as the existing long name support for filenames. +2. Added error messages for previously silent memory allocation and + other errors. +3. -d options does not work correctly with fat32, so now throwing + an error for that. +4. Use predefined structures from kernel's msdos_fs.h file, rather + than defining again here. And accordingly change the names & use + of structure variables. + +Outstanding Issues: +1. The .. directory entry do not point to the parent of current + directory. This issue can be fixed by running dosfsck -a after + image creation. +2. For files the filesize is correct, but the clusters size is more + than it needs to be, this also can be fixed by running dosfsck -a + after image creation. + +Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> +2011/12/13 + + +Index: dosfstools-2.11/mkdosfs/mkdosfs.c +=================================================================== +--- dosfstools-2.11.orig/mkdosfs/mkdosfs.c ++++ dosfstools-2.11/mkdosfs/mkdosfs.c +@@ -21,7 +21,17 @@ + June 2004 - Jordan Crouse (info.linux@amd.com) + Added -d <directory> support to populate the image + Copyright (C) 2004, Advanced Micro Devices, All Rights Reserved +- ++ ++ 2011-12-13: Nitin A Kamble <nitin.a.kamble@intel.com> ++ Enhanced the -d <directory> support for population of image while ++ creation. Earlier subdirectores support was broken, only files in ++ the rootdir were supported. Now directory hirarchy is supported. ++ Also added long filename support to directory names. ++ The -d <directory> option (image population while creation) ++ is broken with fat32. ++ Copyright (C) 2011, Intel Corporation, All Rights Reserved ++ ++ + Fixes/additions May 1998 by Roman Hodek + <Roman.Hodek@informatik.uni-erlangen.de>: + - Atari format support +@@ -86,23 +96,23 @@ + # undef __KERNEL__ + #endif + +-#if __BYTE_ORDER == __BIG_ENDIAN +- ++#ifndef __ASM_STUB_BYTEORDER_H__ + #include <asm/byteorder.h> +-#ifdef __le16_to_cpu +-/* ++roman: 2.1 kernel headers define these function, they're probably more +- * efficient then coding the swaps machine-independently. */ +-#define CF_LE_W __le16_to_cpu +-#define CF_LE_L __le32_to_cpu +-#define CT_LE_W __cpu_to_le16 +-#define CT_LE_L __cpu_to_le32 +-#else +-#define CF_LE_W(v) ((((v) & 0xff) << 8) | (((v) >> 8) & 0xff)) +-#define CF_LE_L(v) (((unsigned)(v)>>24) | (((unsigned)(v)>>8)&0xff00) | \ +- (((unsigned)(v)<<8)&0xff0000) | ((unsigned)(v)<<24)) ++#endif ++ ++#include <linux/msdos_fs.h> ++ ++#undef CF_LE_W ++#undef CF_LE_L ++#undef CT_LE_W ++#undef CT_LE_L ++ ++#if __BYTE_ORDER == __BIG_ENDIAN ++#include <byteswap.h> ++#define CF_LE_W(v) bswap_16(v) ++#define CF_LE_L(v) bswap_32(v) + #define CT_LE_W(v) CF_LE_W(v) + #define CT_LE_L(v) CF_LE_L(v) +-#endif /* defined(__le16_to_cpu) */ + + #else + +@@ -253,33 +263,6 @@ struct fat32_fsinfo { + __u32 reserved2[4]; + }; + +-/* This stores up to 13 chars of the name */ +- +-struct msdos_dir_slot { +- __u8 id; /* sequence number for slot */ +- __u8 name0_4[10]; /* first 5 characters in name */ +- __u8 attr; /* attribute byte */ +- __u8 reserved; /* always 0 */ +- __u8 alias_checksum; /* checksum for 8.3 alias */ +- __u8 name5_10[12]; /* 6 more characters in name */ +- __u16 start; /* starting cluster number, 0 in long slots */ +- __u8 name11_12[4]; /* last 2 characters in name */ +-}; +- +-struct msdos_dir_entry +- { +- char name[8], ext[3]; /* name and extension */ +- __u8 attr; /* attribute bits */ +- __u8 lcase; /* Case for base and extension */ +- __u8 ctime_ms; /* Creation time, milliseconds */ +- __u16 ctime; /* Creation time */ +- __u16 cdate; /* Creation date */ +- __u16 adate; /* Last access date */ +- __u16 starthi; /* high 16 bits of first cl. (FAT32) */ +- __u16 time, date, start; /* time, date and first cluster */ +- __u32 size; /* file size (in bytes) */ +- } __attribute__ ((packed)); +- + /* The "boot code" we put into the filesystem... it writes a message and + tells the user to try again */ + +@@ -356,7 +339,6 @@ static struct msdos_dir_entry *root_dir; + static int size_root_dir; /* Size of the root directory in bytes */ + static int sectors_per_cluster = 0; /* Number of sectors per disk cluster */ + static int root_dir_entries = 0; /* Number of root directory entries */ +-static int root_dir_num_entries = 0; + static int last_cluster_written = 0; + + static char *blank_sector; /* Blank sector - all zeros */ +@@ -1315,7 +1297,7 @@ setup_tables (void) + de->date = CT_LE_W((unsigned short)(ctime->tm_mday + + ((ctime->tm_mon+1) << 5) + + ((ctime->tm_year-80) << 9))); +- de->ctime_ms = 0; ++ de->ctime_cs = 0; + de->ctime = de->time; + de->cdate = de->date; + de->adate = de->date; +@@ -1451,16 +1433,23 @@ write_tables (void) + + /* Add a file to the specified directory entry, and also write it into the image */ + +-static void copy_filename(char *filename, char *base, char *ext) { ++static void copy_filename(char *filename, char *dos_name) { + + char *ch = filename; + int i, len; + +- memset(base, 0x20, 8); +- memset(ext, 0x20, 3); ++ if (!strcmp(filename, ".")) { ++ strncpy(dos_name, MSDOS_DOT, MSDOS_NAME); ++ return; ++ } ++ if (!strcmp(filename, "..")) { ++ strncpy(dos_name, MSDOS_DOTDOT, MSDOS_NAME); ++ return; ++ } ++ memset(dos_name, 0x20, MSDOS_NAME); + + for(len = 0 ; *ch && *ch != '.'; ch++) { +- base[len++] = toupper(*ch); ++ dos_name[len++] = toupper(*ch); + if (len == 8) break; + } + +@@ -1468,7 +1457,7 @@ static void copy_filename(char *filename + if (*ch) ch++; + + for(len = 0 ; *ch; ch++) { +- ext[len++] = toupper(*ch); ++ dos_name[8 + len++] = toupper(*ch); + if (len == 3) break; + } + } +@@ -1551,7 +1540,7 @@ static int add_file(char *filename, stru + int start; + int usedsec, totalsec; + +- char name83[8], ext83[3]; ++ char dos_name[MSDOS_NAME+1]; + + struct msdos_dir_slot *slot; + int i; +@@ -1562,23 +1551,22 @@ static int add_file(char *filename, stru + if (dir->root) { + if (dir->count == dir->entries) { + printf("Error - too many directory entries\n"); ++ return; + } + } + else { +- if (dir->count == dir->entries) { +- if (!dir->table) +- dir->table = +- (struct msdos_dir_entry *) malloc(sizeof(struct msdos_dir_entry)); +- else { +- dir->table = +- (struct msdos_dir_entry *) realloc(dir->table, (dir->entries + 1) * +- sizeof(struct msdos_dir_entry)); +- +- memset(&dir->table[dir->entries], 0, sizeof(struct msdos_dir_entry)); +- } +- +- dir->entries++; +- } ++ /* 2 entries, one extra for long filename */ ++ if (!dir->table) ++ dir->table = ++ (struct msdos_dir_entry *) malloc(2 * sizeof(struct msdos_dir_entry)); ++ else ++ dir->table = ++ (struct msdos_dir_entry *) realloc(dir->table, 2 * (dir->entries + 1) * ++ sizeof(struct msdos_dir_entry)); ++ if (!dir->table) ++ printf("Error - realloc failed\n"); ++ memset(&dir->table[dir->entries], 0, 2 * sizeof(struct msdos_dir_entry)); ++ dir->entries += 2; + } + + infile = open(filename, O_RDONLY, 0); +@@ -1611,13 +1599,13 @@ static int add_file(char *filename, stru + return -1; + } + +- printf("ADD %s\n", filename); ++ printf("ADD FILE %s\n", filename); + + /* Grab the basename of the file */ + base = basename(filename); + +- /* Extract out the 8.3 name */ +- copy_filename(base, name83, ext83); ++ /* convert for dos fat structure */ ++ copy_filename(base, dos_name); + + /* Make an extended name slot */ + +@@ -1629,12 +1617,9 @@ static int add_file(char *filename, stru + + slot->alias_checksum = 0; + +- for(i = 0; i < 8; i++) +- slot->alias_checksum = (((slot->alias_checksum&1)<<7)|((slot->alias_checksum&0xfe)>>1)) + name83[i]; ++ for(i = 0; i < MSDOS_NAME; i++) ++ slot->alias_checksum = (((slot->alias_checksum&1)<<7)|((slot->alias_checksum&0xfe)>>1)) + dos_name[i]; + +- for(i = 0; i < 3; i++) +- slot->alias_checksum = (((slot->alias_checksum&1)<<7)|((slot->alias_checksum&0xfe)>>1)) + ext83[i]; +- + p = base; + + copy_name(slot->name0_4, 10, &p); +@@ -1645,8 +1630,7 @@ static int add_file(char *filename, stru + /* Get the entry from the root filesytem */ + entry = &dir->table[dir->count++]; + +- strncpy(entry->name, name83, 8); +- strncpy(entry->ext, ext83, 3); ++ strncpy(entry->name, dos_name, MSDOS_NAME); + + + /* If the user has it read only, then add read only to the incoming +@@ -1665,7 +1649,7 @@ static int add_file(char *filename, stru + ((ctime->tm_mon+1) << 5) + + ((ctime->tm_year-80) << 9))); + +- entry->ctime_ms = 0; ++ entry->ctime_cs = 0; + entry->ctime = entry->time; + entry->cdate = entry->date; + entry->adate = entry->date; +@@ -1711,6 +1695,7 @@ static int add_file(char *filename, stru + + exit_add: + if (infile) close(infile); ++ return 0; + } + + /* Add a new directory to the specified directory entry, and in turn populate +@@ -1727,10 +1712,18 @@ static void add_directory(char *filename + struct dirent *dentry = 0; + int remain; + char *data; ++ char *base; ++ char dos_name[MSDOS_NAME+1]; ++ struct msdos_dir_slot *slot; ++ int i; ++ char *p; + + /* If the directory doesn't exist */ +- if (!rddir) return; +- ++ if (!rddir) { ++ printf("Error - dir does not exist: %s\n", filename); ++ return; ++ } ++ + if (dir->root) { + if (dir->count == dir->entries) { + printf("Error - too many directory entries\n"); +@@ -1738,28 +1731,58 @@ static void add_directory(char *filename + } + } + else { +- if (dir->count == dir->entries) { +- if (!dir->table) +- dir->table = (struct msdos_dir_entry *) malloc(sizeof(struct msdos_dir_entry)); +- else { +- dir->table = (struct msdos_dir_entry *) realloc(dir->table, (dir->entries + 1) * +- sizeof(struct msdos_dir_entry)); +- +- /* Zero it out to avoid issues */ +- memset(&dir->table[dir->entries], 0, sizeof(struct msdos_dir_entry)); +- } +- dir->entries++; ++ /* 2 entries, one extra for long name of the directory */ ++ if (!dir->table) ++ dir->table = (struct msdos_dir_entry *) malloc(2 * sizeof(struct msdos_dir_entry)); ++ else ++ dir->table = (struct msdos_dir_entry *) realloc(dir->table, 2 * (dir->entries + 1) * ++ sizeof(struct msdos_dir_entry)); ++ if (!dir->table) { ++ printf("Error - memory allocation failed\n"); ++ goto exit_add_dir; + } ++ /* Zero it out to avoid issues */ ++ memset(&dir->table[dir->entries], 0, 2 * sizeof(struct msdos_dir_entry)); ++ dir->entries += 2; + } + ++ printf("ADD DIR %s\n", filename); + /* Now, create a new directory entry for the new directory */ + newdir = (struct dir_entry *) calloc(1, sizeof(struct dir_entry)); +- if (!newdir) goto exit_add_dir; ++ if (!newdir) { ++ printf("Error - calloc failed\n"); ++ goto exit_add_dir; ++ } ++ ++ /* Grab the basename of the file */ ++ base = basename(filename); ++ ++ /* convert for dos structure */ ++ copy_filename(base, dos_name); ++ ++ /* Make an extended name slot */ ++ slot = (struct msdos_dir_slot *) &dir->table[dir->count++]; ++ slot->id = 'A'; ++ slot->attr = 0x0F; ++ slot->reserved = 0; ++ slot->start = 0; ++ ++ slot->alias_checksum = 0; + ++ for (i = 0; i < MSDOS_NAME; i++) ++ slot->alias_checksum = (((slot->alias_checksum&1)<<7)|((slot->alias_checksum&0xfe)>>1)) + dos_name[i]; ++ ++ p = base; ++ ++ copy_name(slot->name0_4, 10, &p); ++ copy_name(slot->name5_10, 12, &p); ++ copy_name(slot->name11_12, 4, &p); ++ ++ /* Get the entry from the root filesytem */ + entry = &dir->table[dir->count++]; + +- strncpy(entry->name, basename(filename), sizeof(entry->name)); +- ++ strncpy(entry->name, dos_name, MSDOS_NAME); ++ + entry->attr = ATTR_DIR; + ctime = localtime(&create_time); + +@@ -1770,25 +1793,32 @@ static void add_directory(char *filename + ((ctime->tm_mon+1) << 5) + + ((ctime->tm_year-80) << 9))); + +- entry->ctime_ms = 0; ++ entry->ctime_cs = 0; + entry->ctime = entry->time; + entry->cdate = entry->date; + entry->adate = entry->date; + + /* Now, read the directory */ + +- while((dentry = readdir(rddir))) { ++ ++ while((base[0] != '.') && (dentry = readdir(rddir))) { + struct stat st; + char *buffer; +- +- if (!strcmp(dentry->d_name, ".") || !strcmp(dentry->d_name, "..")) +- continue; + +- /* DOS wouldn't like a typical unix . (dot) file, so we skip those too */ +- if (dentry->d_name[0] == '.') continue; ++ if (dentry->d_name[0] == '.') { ++ /* dos also has . & .. directory entries */ ++ if (! ((!strcmp(dentry->d_name, ".")) || (!strcmp(dentry->d_name, "..")))) { ++ /* ignore other .* files */ ++ printf("Error - File/Dir name is not dos compatible, ignored: %s\n", dentry->d_name); ++ continue; ++ } ++ } + + buffer = malloc(strlen(filename) + strlen(dentry->d_name) + 3); +- if (!buffer) continue; ++ if (!buffer) { ++ printf("Error - malloc failed\n"); ++ goto exit_add_dir; ++ } + + sprintf(buffer, "%s/%s", filename, dentry->d_name); + if (!stat(buffer, &st)) { +@@ -1806,11 +1836,23 @@ static void add_directory(char *filename + /* Now that the entire directory has been written, go ahead and write the directory + entry as well */ + ++ entry->size = 0; /* a directory has zero size */ ++ ++ if (base[0] == '.') { /* . & .. point to parent's cluster */ ++ goto exit_add_dir; ++ } ++ + entry->start = CT_LE_W(last_cluster_written); + entry->starthi = CT_LE_W((last_cluster_written & 0xFFFF0000) >> 16); +- entry->size = newdir->count * sizeof(struct msdos_dir_entry); ++ ++/* . dir start points to parent */ ++ newdir->table[1].start = entry->start; ++/* .. dir points to parent of parent*/ ++/* .. dir start is not set yet, would need more changes to the code, ++ * but dosfsck can fix these .. entry start pointers correctly */ ++ ++ remain = newdir->count * sizeof(struct msdos_dir_entry); + +- remain = entry->size; + data = (char *) newdir->table; + + while(remain) { +@@ -1858,6 +1900,7 @@ static void add_root_directory(char *dir + + if (!newdir) { + closedir(dir); ++ printf("Error - calloc failed!\n"); + return; + } + +@@ -1877,7 +1920,10 @@ static void add_root_directory(char *dir + if (entry->d_name[0] == '.') continue; + + buffer = malloc(strlen(dirname) + strlen(entry->d_name) + 3); +- if (!buffer) continue; ++ if (!buffer) { ++ printf("Error - malloc failed!\n"); ++ continue; ++ } + + sprintf(buffer, "%s/%s", dirname, entry->d_name); + if (!stat(buffer, &st)) { +@@ -2245,6 +2291,9 @@ main (int argc, char **argv) + if (check && listfile) /* Auto and specified bad block handling are mutually */ + die ("-c and -l are incompatible"); /* exclusive of each other! */ + ++ if (dirname && (size_fat == 32)) ++ die ("-d is incompatible with FAT32"); ++ + if (!create) { + check_mount (device_name); /* Is the device already mounted? */ + dev = open (device_name, O_RDWR); /* Is it a suitable device to build the FS on? */ |