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Refactor magiskboot

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This commit is contained in:
topjohnwu 2017-12-21 03:36:18 +08:00
parent e8dd1b292f
commit a3c49de6a5
16 changed files with 351 additions and 347 deletions
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6
build.py
View File

@ -266,7 +266,7 @@ def zip_main(args):
with open(source, 'r') as script:
# Add version info util_functions.sh
util_func = script.read().replace(
'MAGISK_VERSION_STUB', 'MAGISK_VER="{}"\nMAGISK_VER_CODE={}'.format(args.versionString, args.versionCode))
'#MAGISK_VERSION_STUB', 'MAGISK_VER="{}"\nMAGISK_VER_CODE={}'.format(args.versionString, args.versionCode))
target = os.path.join('common', 'util_functions.sh')
print('zip: ' + source + ' -> ' + target)
zipf.writestr(target, util_func)
@ -316,11 +316,9 @@ def zip_uninstaller(args):
source = os.path.join('scripts', 'util_functions.sh')
with open(source, 'r') as script:
# Remove the stub
util_func = script.read().replace(
'MAGISK_VERSION_STUB', '')
target = os.path.join('util_functions.sh')
print('zip: ' + source + ' -> ' + target)
zipf.writestr(target, util_func)
zipf.writestr(target, script.read())
# Prebuilts
for chromeos in ['futility', 'kernel_data_key.vbprivk', 'kernel.keyblock']:

44
core/jni/core/magiskinit.c
View File

@ -182,22 +182,24 @@ static void patch_ramdisk(int root) {
close(fd);
free(addr);
char *key, *value;
full_read("/.backup/.magisk", &addr, &size);
for (char *tok = strtok(addr, "\n"); tok; tok = strtok(NULL, "\n")) {
key = tok;
value = strchr(tok, '=') + 1;
value[-1] = '\0';
if (strcmp(key, "KEEPVERITY") == 0)
keepverity = strcmp(value, "true") == 0;
else if (strcmp(key, "KEEPFORCEENCRYPT") == 0)
keepencrypt = strcmp(value, "true") == 0;
}
/* Disabled for now */
excl_list = (char *[]) { "system_root", "system", "vendor", NULL };
in_order_walk(root, fstab_patch_cb);
if (!keepverity)
unlink("/verity_key");
// char *key, *value;
// full_read("/.backup/.magisk", &addr, &size);
// for (char *tok = strtok(addr, "\n"); tok; tok = strtok(NULL, "\n")) {
// key = tok;
// value = strchr(tok, '=') + 1;
// value[-1] = '\0';
// if (strcmp(key, "KEEPVERITY") == 0)
// keepverity = strcmp(value, "true") == 0;
// else if (strcmp(key, "KEEPFORCEENCRYPT") == 0)
// keepencrypt = strcmp(value, "true") == 0;
// }
// excl_list = (char *[]) { "system_root", "system", "vendor", NULL };
// in_order_walk(root, fstab_patch_cb);
// if (!keepverity)
// unlink("/verity_key");
}
static int strend(const char *s1, const char *s2) {
@ -472,17 +474,11 @@ int main(int argc, char *argv[]) {
close(system_root);
} else {
char *ramdisk_xz = NULL;
if (access("/ramdisk-recovery.xz", R_OK) == 0)
ramdisk_xz = "/ramdisk-recovery.xz";
else if (access("/ramdisk.cpio.xz", R_OK) == 0)
ramdisk_xz = "/ramdisk.cpio.xz";
if (ramdisk_xz) {
// High compress mode
if (access("/ramdisk.cpio.xz", R_OK) == 0) {
// High compression mode
void *addr;
size_t size;
mmap_ro(ramdisk_xz, &addr, &size);
mmap_ro("/ramdisk.cpio.xz", &addr, &size);
int fd = creat("/ramdisk.cpio", 0);
unxz(addr, size, fd);
munmap(addr, size);

2
core/jni/include/cpio.h
View File

@ -42,6 +42,8 @@ typedef struct cpio_newc_header {
} cpio_newc_header;
// Basic cpio functions
void cpio_free(cpio_entry *e);
int cpio_find(struct vector *v, const char *entry);
int cpio_cmp(const void *a, const void *b);
void parse_cpio(struct vector *v, const char *filename);
void dump_cpio(struct vector *v, const char *filename);

8
core/jni/include/vector.h
View File

@ -7,8 +7,8 @@
#include <sys/types.h>
struct vector {
size_t size;
size_t cap;
unsigned size;
unsigned cap;
void **data;
};
@ -26,11 +26,11 @@ struct vector *vec_dup(struct vector *v);
/* Usage: vec_for_each(vector *v, void *e) */
#define vec_for_each(v, e) \
e = v ? (v)->data[0] : NULL; \
for (size_t _ = 0; v && _ < (v)->size; ++_, e = (v)->data[_])
for (int _ = 0; v && _ < (v)->size; ++_, e = (v)->data[_])
#define vec_for_each_r(v, e) \
e = v ? (v)->data[(v)->size - 1] : NULL; \
for (size_t _ = (v)->size; v && _ > 0; --_, e = (v)->data[_ - 1])
for (int _ = ((int) (v)->size) - 1; v && _ >= 0; --_, e = (v)->data[_])
#define vec_cur(v) vec_entry(v)[_]

6
core/jni/magiskboot/bootimg.c
View File

@ -55,7 +55,6 @@ static void print_hdr(const boot_img_hdr *hdr) {
}
fprintf(stderr, "NAME [%s]\n", hdr->name);
fprintf(stderr, "CMDLINE [%s]\n", hdr->cmdline);
fprintf(stderr, "\n");
}
int parse_img(const char *image, boot_img *boot) {
@ -63,7 +62,7 @@ int parse_img(const char *image, boot_img *boot) {
int is_blk = mmap_ro(image, &boot->map_addr, &boot->map_size);
// Parse image
fprintf(stderr, "Parsing boot image: [%s]\n\n", image);
fprintf(stderr, "Parsing boot image: [%s]\n", image);
for (size_t pos = 0; pos < boot->map_size; pos += 256) {
switch (check_type(boot->map_addr + pos)) {
case CHROMEOS:
@ -143,7 +142,6 @@ int parse_img(const char *image, boot_img *boot) {
fprintf(stderr, "KERNEL_FMT [%s]\n", fmt);
get_type_name(boot->ramdisk_type, fmt);
fprintf(stderr, "RAMDISK_FMT [%s]\n", fmt);
fprintf(stderr, "\n");
return boot->flags & CHROMEOS_FLAG ? CHROMEOS_RET :
((is_blk && boot->tail_size < 500 * 1024) ? INSUF_BLOCK_RET : 0);
@ -206,7 +204,7 @@ void repack(const char* orig_image, const char* out_image) {
// Parse original image
parse_img(orig_image, &boot);
fprintf(stderr, "Repack to boot image: [%s]\n\n", out_image);
fprintf(stderr, "Repack to boot image: [%s]\n", out_image);
// Create new image
int fd = creat(out_image, 0644);

4
core/jni/magiskboot/compress.c
View File

@ -437,7 +437,7 @@ void decomp_file(char *from, const char *to) {
fd = STDOUT_FILENO;
} else {
fd = creat(to, 0644);
fprintf(stderr, "Decompressing to [%s]\n\n", to);
fprintf(stderr, "Decompressing to [%s]\n", to);
}
decomp(type, fd, file, size);
@ -498,7 +498,7 @@ void comp_file(const char *method, const char *from, const char *to) {
fd = STDOUT_FILENO;
} else {
fd = creat(dest, 0644);
fprintf(stderr, "Compressing to [%s]\n\n", dest);
fprintf(stderr, "Compressing to [%s]\n", dest);
}
comp(type, fd, file, size);
close(fd);

2
core/jni/magiskboot/hexpatch.c
View File

@ -26,7 +26,7 @@ void hexpatch(const char *image, const char *from, const char *to) {
hex2byte(to, patch);
for (size_t i = 0; filesize > 0 && i < filesize - patternsize; ++i) {
if (memcmp(file + i, pattern, patternsize) == 0) {
fprintf(stderr, "Pattern %s found!\nPatching to %s\n", from, to);
fprintf(stderr, "Patch @ %08X [%s]->[%s]\n", (unsigned) i, from, to);
memset(file + i, 0, patternsize);
memcpy(file + i, patch, patchsize);
i += patternsize - 1;

2
core/jni/magiskboot/magiskboot.h
View File

@ -18,7 +18,7 @@ void unpack(const char *image);
void repack(const char* orig_image, const char* out_image);
void hexpatch(const char *image, const char *from, const char *to);
int parse_img(const char *image, boot_img *boot);
int cpio_commands(const char *cmd, int argc, char *argv[]);
int cpio_commands(int argc, char *argv[]);
void comp_file(const char *method, const char *from, const char *to);
void decomp_file(char *from, const char *to);
int dtb_commands(const char *cmd, int argc, char *argv[]);

62
core/jni/magiskboot/main.c
View File

@ -36,34 +36,39 @@ static void usage(char *arg0) {
" --hexpatch <file> <hexpattern1> <hexpattern2>\n"
" Search <hexpattern1> in <file>, and replace with <hexpattern2>\n"
"\n"
" --cpio-<cmd> <incpio> [flags...] [args...]\n"
" Do cpio related cmds to <incpio> (modifications are done directly)\n"
" --cpio <incpio> [commands...]\n"
" Do cpio commands to <incpio> (modifications are done directly)\n"
" Each command is a single argument, use quotes if necessary\n"
" Supported commands:\n"
" -rm [-r] <entry>\n"
" Remove entry from <incpio>, flag [-r] to remove recursively\n"
" -mkdir <mode> <entry>\n"
" Create directory as an <entry>\n"
" -ln <target> <entry>\n"
" Create symlink <entry> to point to <target>\n"
" -mv <from-entry> <to-entry>\n"
" Move <from-entry> to <to-entry>\n"
" -add <mode> <entry> <infile>\n"
" Add <infile> as an <entry>; replaces <entry> if already exists\n"
" -extract [<entry> <outfile>]\n"
" Extract <entry> to <outfile>, or extract all to current directory\n"
" -test\n"
" rm [-r] ENTRY\n"
" Remove ENTRY, specify [-r] to remove recursively\n"
" mkdir MODE ENTRY\n"
" Create directory ENTRY in permissions MODE\n"
" ln TARGET ENTRY\n"
" Create a symlink to TARGET with the name ENTRY\n"
" mv SOURCE DEST\n"
" Move SOURCE to DEST\n"
" add MODE ENTRY INFILE\n"
" Add INFILE as ENTRY in permissions MODE; replaces ENTRY if exists\n"
" extract [ENTRY OUT]\n"
" Extract ENTRY to OUT, or extract all entries to current directory\n"
" test\n"
" Test the current cpio's patch status\n"
" Return value: 0/stock 1/Magisk 2/other (phh, SuperSU, Xposed)\n"
" -patch <KEEPVERITY> <KEEPFORCEENCRYPT>\n"
" patch KEEPVERITY KEEPFORCEENCRYPT\n"
" Ramdisk patches. KEEP**** are boolean values\n"
" This command is no longer used in Magisk installations\n"
" -backup <origcpio> <HIGHCOMP> <KEEPVERITY> <KEEPFORCEENCRYPT> [SHA1]\n"
" Create ramdisk backups into <incpio> from <origcpio>\n"
" backup ORIG [SHA1]\n"
" Create ramdisk backups from ORIG\n"
" SHA1 of stock boot image is optional\n"
" restore\n"
" Restore ramdisk from ramdisk backup stored within incpio\n"
" magisk ORIG HIGHCOMP KEEPVERITY KEEPFORCEENCRYPT [SHA1]\n"
" Do Magisk patches and backups all in one step\n"
" Create ramdisk backups from ORIG\n"
" HIGHCOMP, KEEP**** are boolean values\n"
" SHA1 of stock boot image is optional\n"
" -restore\n"
" Restore ramdisk from ramdisk backup within <incpio>\n"
" -stocksha1\n"
" Get stock boot SHA1 recorded within <incpio>\n"
" sha1\n"
" Print stock boot SHA1 if previously stored\n"
"\n"
" --dtb-<cmd> <dtb>\n"
" Do dtb related cmds to <dtb> (modifications are done directly)\n"
@ -104,11 +109,11 @@ static void usage(char *arg0) {
}
int main(int argc, char *argv[]) {
fprintf(stderr, "MagiskBoot v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) - Boot Image Modification Tool\n\n");
fprintf(stderr, "MagiskBoot v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) - Boot Image Modification Tool\n");
umask(0);
if (argc > 1 && strcmp(argv[1], "--cleanup") == 0) {
fprintf(stderr, "Cleaning up...\n\n");
fprintf(stderr, "Cleaning up...\n");
char name[PATH_MAX];
unlink(KERNEL_FILE);
unlink(RAMDISK_FILE);
@ -146,11 +151,8 @@ int main(int argc, char *argv[]) {
comp_file(method, argv[2], argc > 3 ? argv[3] : NULL);
} else if (argc > 4 && strcmp(argv[1], "--hexpatch") == 0) {
hexpatch(argv[2], argv[3], argv[4]);
} else if (argc > 2 && strncmp(argv[1], "--cpio", 6) == 0) {
char *cmd = argv[1] + 6;
if (*cmd == '\0') usage(argv[0]);
else ++cmd;
if (cpio_commands(cmd, argc - 2, argv + 2)) usage(argv[0]);
} else if (argc > 2 && strcmp(argv[1], "--cpio") == 0) {
if (cpio_commands(argc - 2, argv + 2)) usage(argv[0]);
} else if (argc > 2 && strncmp(argv[1], "--dtb", 5) == 0) {
char *cmd = argv[1] + 5;
if (*cmd == '\0') usage(argv[0]);

280
core/jni/magiskboot/ramdisk.c
View File

@ -9,19 +9,21 @@
#include "cpio.h"
static void cpio_patch(struct vector *v, int keepverity, int keepforceencrypt) {
cpio_entry *f;
vec_for_each(v, f) {
cpio_entry *e;
vec_for_each(v, e) {
if (!e) continue;
if (!keepverity) {
if (strstr(f->filename, "fstab") != NULL && S_ISREG(f->mode)) {
patch_verity(&f->data, &f->filesize, 1);
} else if (strcmp(f->filename, "verity_key") == 0) {
if (strncmp(e->filename, ".backup", 7) && strstr(e->filename, "fstab") && S_ISREG(e->mode)) {
patch_verity(&e->data, &e->filesize, 1);
} else if (strcmp(e->filename, "verity_key") == 0) {
fprintf(stderr, "Remove [verity_key]\n");
f->remove = 1;
cpio_free(e);
vec_cur(v) = NULL;
}
}
if (!keepforceencrypt) {
if (strstr(f->filename, "fstab") != NULL && S_ISREG(f->mode)) {
patch_encryption(&f->data, &f->filesize);
if (strstr(e->filename, "fstab") != NULL && S_ISREG(e->mode)) {
patch_encryption(&e->data, &e->filesize);
}
}
}
@ -32,33 +34,28 @@ static void cpio_patch(struct vector *v, int keepverity, int keepforceencrypt) {
#define OTHER_PATCH 0x2
static int cpio_test(struct vector *v) {
int ret = STOCK_BOOT;
cpio_entry *f;
const char *OTHER_LIST[] = { "sbin/launch_daemonsu.sh", "sbin/su", "init.xposed.rc", "boot/sbin/launch_daemonsu.sh", NULL };
const char *MAGISK_LIST[] = { ".backup/.magisk", "init.magisk.rc", "overlay/init.magisk.rc", NULL };
vec_for_each(v, f) {
for (int i = 0; OTHER_LIST[i]; ++i) {
if (strcmp(f->filename, OTHER_LIST[i]) == 0) {
// Already find other files, abort
return OTHER_PATCH;
}
}
for (int i = 0; MAGISK_LIST[i]; ++i) {
if (strcmp(f->filename, MAGISK_LIST[i]) == 0)
ret = MAGISK_PATCH;
}
}
cpio_vec_destroy(v);
return ret;
for (int i = 0; OTHER_LIST[i]; ++i)
if (cpio_find(v, OTHER_LIST[i]) > 0)
return OTHER_PATCH;
for (int i = 0; MAGISK_LIST[i]; ++i)
if (cpio_find(v, MAGISK_LIST[i]) > 0)
return MAGISK_PATCH;
return STOCK_BOOT;
}
static char *cpio_stocksha1(struct vector *v) {
cpio_entry *f;
static char *cpio_sha1(struct vector *v) {
cpio_entry *e;
char sha1[41];
vec_for_each(v, f) {
if (strcmp(f->filename, "init.magisk.rc") == 0
|| strcmp(f->filename, "overlay/init.magisk.rc") == 0) {
for (void *pos = f->data; pos < f->data + f->filesize; pos = strchr(pos + 1, '\n') + 1) {
vec_for_each(v, e) {
if (!e) continue;
if (strcmp(e->filename, "init.magisk.rc") == 0
|| strcmp(e->filename, "overlay/init.magisk.rc") == 0) {
for (void *pos = e->data; pos < e->data + e->filesize; pos = strchr(pos + 1, '\n') + 1) {
if (memcmp(pos, "# STOCKSHA1=", 12) == 0) {
pos += 12;
memcpy(sha1, pos, 40);
@ -66,61 +63,47 @@ static char *cpio_stocksha1(struct vector *v) {
return strdup(sha1);
}
}
} else if (strcmp(f->filename, ".backup/.sha1") == 0) {
return f->data;
} else if (strcmp(e->filename, ".backup/.sha1") == 0) {
return e->data;
}
}
return NULL;
}
static struct vector *cpio_backup(struct vector *v, const char *orig, const char *keepverity,
const char *keepforceencrypt, const char *sha1) {
struct vector o_body, *o = &o_body, *ret;
static void cpio_backup(struct vector *v, struct vector *bak, const char *orig, const char *sha1) {
struct vector o_body, *o = &o_body;
cpio_entry *m, *n, *rem, *cksm;
char buf[PATH_MAX];
int res, backup;
ret = xcalloc(sizeof(*ret), 1);
vec_init(o);
vec_init(ret);
m = xcalloc(sizeof(*m), 1);
m->filename = strdup(".backup");
m->mode = S_IFDIR;
vec_push_back(ret, m);
m = xcalloc(sizeof(*m), 1);
m->filename = strdup(".backup/.magisk");
m->mode = S_IFREG;
m->data = xmalloc(50);
snprintf(m->data, 50, "KEEPVERITY=%s\nKEEPFORCEENCRYPT=%s\n", keepverity, keepforceencrypt);
m->filesize = strlen(m->data) + 1;
vec_push_back(ret, m);
vec_push_back(bak, m);
rem = xcalloc(sizeof(*rem), 1);
rem->filename = strdup(".backup/.rmlist");
rem->mode = S_IFREG;
vec_push_back(ret, rem);
if (sha1) {
fprintf(stderr, "Save SHA1: [%s] -> [.backup/.sha1]\n", sha1);
cksm = xcalloc(sizeof(*cksm), 1);
vec_push_back(ret, cksm);
vec_push_back(bak, cksm);
cksm->filename = strdup(".backup/.sha1");
cksm->mode = S_IFREG;
cksm->data = strdup(sha1);
cksm->filesize = strlen(sha1) + 1;
}
vec_init(o);
parse_cpio(o, orig);
// Remove possible backups in original ramdisk
cpio_rm(o, 1, ".backup");
cpio_rm(v, 1, ".backup");
// Sort both vectors before comparing
vec_sort(v, cpio_cmp);
vec_sort(o, cpio_cmp);
vec_sort(v, cpio_cmp);
// Start comparing
size_t i = 0, j = 0;
@ -153,7 +136,6 @@ static struct vector *cpio_backup(struct vector *v, const char *orig, const char
} else {
// Someting new in ramdisk, record in rem
++j;
if (n->remove) continue;
rem->data = xrealloc(rem->data, rem->filesize + strlen(n->filename) + 1);
memcpy(rem->data + rem->filesize, n->filename, strlen(n->filename) + 1);
rem->filesize += strlen(n->filename) + 1;
@ -161,51 +143,49 @@ static struct vector *cpio_backup(struct vector *v, const char *orig, const char
}
if (backup) {
sprintf(buf, ".backup/%s", m->filename);
fprintf(stderr, "[%s] -> [%s]\n", m->filename, buf);
free(m->filename);
m->filename = strdup(buf);
fprintf(stderr, "[%s] -> [%s]\n", buf, m->filename);
vec_push_back(ret, m);
vec_push_back(bak, m);
// NULL the original entry, so it won't be freed
vec_entry(o)[i - 1] = NULL;
}
}
if (rem->filesize == 0)
rem->remove = 1;
if (rem->filesize)
vec_push_back(bak, rem);
else
cpio_free(rem);
// Cleanup
cpio_vec_destroy(o);
return ret;
}
static void cpio_restore(struct vector *v) {
cpio_entry *f, *n;
vec_for_each(v, f) {
if (strncmp(f->filename, ".backup", 7) == 0) {
f->remove = 1;
if (f->filename[7] == '\0') continue;
if (f->filename[8] == '.') {
if (strcmp(f->filename, ".backup/.rmlist") == 0) {
for (int pos = 0; pos < f->filesize; pos += strlen(f->data + pos) + 1)
cpio_rm(v, 0, f->data + pos);
cpio_entry *e;
vec_for_each(v, e) {
if (!e) continue;
if (strncmp(e->filename, ".backup", 7) == 0) {
if (e->filename[7] == '\0') continue;
if (e->filename[8] == '.') {
if (strcmp(e->filename, ".backup/.rmlist") == 0) {
for (int pos = 0; pos < e->filesize; pos += strlen(e->data + pos) + 1)
cpio_rm(v, 0, e->data + pos);
}
continue;
} else {
n = xcalloc(sizeof(*n), 1);
memcpy(n, f, sizeof(*f));
n->filename = strdup(f->filename + 8);
n->data = f->data;
f->data = NULL;
n->remove = 0;
fprintf(stderr, "Restore [%s] -> [%s]\n", f->filename, n->filename);
cpio_vec_insert(v, n);
fprintf(stderr, "Restore [%s] -> [%s]\n", e->filename, e->filename + 8);
vec_cur(v) = NULL;
char *new_name = strdup(e->filename + 8);
free(e->filename);
e->filename = new_name;
cpio_vec_insert(v, e);
}
}
if (strncmp(f->filename, "overlay", 7) == 0)
f->remove = 1;
}
// Some known stuff we can remove
cpio_rm(v, 1, ".backup");
cpio_rm(v, 1, "overlay");
cpio_rm(v, 0, "sbin/magic_mask.sh");
cpio_rm(v, 0, "init.magisk.rc");
cpio_rm(v, 0, "magisk");
@ -235,25 +215,16 @@ static void restore_high_compress(struct vector *v, const char *incpio) {
}
static void enable_high_compress(struct vector *v, struct vector *b, const char *incpio) {
cpio_entry *e, *magiskinit, *init;
cpio_entry *init, *magiskinit;
// Swap magiskinit with original init
vec_for_each(b, e) {
if (strcmp(e->filename, ".backup/init") == 0) {
free(e->filename);
e->filename = strdup("init");
init = e;
vec_for_each(v, e) {
if (strcmp(e->filename, "init") == 0) {
magiskinit = e;
vec_cur(v) = init;
break;
}
}
vec_cur(b) = NULL;
break;
}
}
int i = cpio_find(b, ".backup/init"), j = cpio_find(v, "init");
init = vec_entry(b)[i];
magiskinit = vec_entry(v)[j];
free(init->filename);
init->filename = strdup("init");
vec_entry(v)[j] = init;
vec_entry(b)[i] = NULL;
dump_cpio(v, incpio);
cpio_vec_destroy(v);
@ -269,64 +240,93 @@ static void enable_high_compress(struct vector *v, struct vector *b, const char
cpio_add(v, 0, "ramdisk.cpio.xz", incpio);
}
int cpio_commands(const char *command, int argc, char *argv[]) {
int cpio_commands(int argc, char *argv[]) {
char *incpio = argv[0];
++argv;
--argc;
struct vector v;
vec_init(&v);
parse_cpio(&v, incpio);
if (strcmp(command, "test") == 0) {
exit(cpio_test(&v));
} else if (strcmp(command, "restore") == 0) {
restore_high_compress(&v, incpio);
cpio_restore(&v);
} else if (strcmp(command, "stocksha1") == 0) {
printf("%s\n", cpio_stocksha1(&v));
return 0;
} else if (argc >= 4 && strcmp(command, "backup") == 0) {
struct vector *back;
cpio_entry *e;
back = cpio_backup(&v, argv[0], argv[2], argv[3], argc > 4 ? argv[4] : NULL);
int cmdc;
char *cmdv[6];
// Enable high compression mode
if (strcmp(argv[1], "true") == 0)
enable_high_compress(&v, back, incpio);
while (argc) {
cmdc = 0;
for (char *tok = strtok(argv[0], " "); tok; tok = strtok(NULL, " "))
cmdv[cmdc++] = tok;
vec_for_each(back, e)
if (e) vec_push_back(&v, e);
} else if (argc > 0 && strcmp(command, "rm") == 0) {
int recursive = 0;
if (argc == 2 && strcmp(argv[0], "-r") == 0) {
recursive = 1;
++argv;
}
cpio_rm(&v, recursive, argv[0]);
} else if (argc == 2 && strcmp(command, "mv") == 0) {
if (cpio_mv(&v, argv[0], argv[1]))
return 1;
} else if (argc == 2 && strcmp(command, "patch") == 0) {
cpio_patch(&v, strcmp(argv[0], "true") == 0, strcmp(argv[1], "true") == 0);
} else if (strcmp(command, "extract") == 0) {
if (argc == 2) {
return cpio_extract(&v, argv[0], argv[1]);
} else {
cpio_extract_all(&v);
if (strcmp(cmdv[0], "test") == 0) {
exit(cpio_test(&v));
} else if (strcmp(cmdv[0], "restore") == 0) {
restore_high_compress(&v, incpio);
cpio_restore(&v);
} else if (strcmp(cmdv[0], "sha1") == 0) {
char *sha1 = cpio_sha1(&v);
if (sha1)
printf("%s\n", sha1);
return 0;
} else if (cmdc >= 2 && strcmp(cmdv[0], "backup") == 0) {
struct vector back;
vec_init(&back);
cpio_backup(&v, &back, cmdv[1], cmdc > 2 ? cmdv[2] : NULL);
cpio_entry *e;
vec_for_each(&back, e)
if (e) vec_push_back(&v, e);
vec_destroy(&back);
} else if (cmdc >= 5 && strcmp(cmdv[0], "magisk") == 0) {
cpio_patch(&v, strcmp(cmdv[3], "true") == 0, strcmp(cmdv[4], "true") == 0);
struct vector back;
vec_init(&back);
cpio_backup(&v, &back, cmdv[1], cmdc > 5 ? cmdv[5] : NULL);
cpio_entry *e;
e = xcalloc(sizeof(*e), 1);
e->filename = strdup(".backup/.magisk");
e->mode = S_IFREG;
e->data = xmalloc(50);
snprintf(e->data, 50, "KEEPVERITY=%s\nKEEPFORCEENCRYPT=%s\n", cmdv[3], cmdv[4]);
e->filesize = strlen(e->data) + 1;
vec_push_back(&back, e);
// Enable high compression mode
if (strcmp(cmdv[2], "true") == 0)
enable_high_compress(&v, &back, incpio);
vec_for_each(&back, e)
if (e) vec_push_back(&v, e);
vec_destroy(&back);
} else if (cmdc >= 2 && strcmp(cmdv[0], "rm") == 0) {
int recur = cmdc > 2 && strcmp(cmdv[1], "-r") == 0;
cpio_rm(&v, recur, cmdv[1 + recur]);
} else if (cmdc == 3 && strcmp(cmdv[0], "mv") == 0) {
cpio_mv(&v, cmdv[1], cmdv[2]);
} else if (cmdc == 3 && strcmp(cmdv[0], "patch") == 0) {
cpio_patch(&v, strcmp(cmdv[1], "true") == 0, strcmp(cmdv[2], "true") == 0);
} else if (strcmp(cmdv[0], "extract") == 0) {
if (cmdc == 3) {
return cpio_extract(&v, cmdv[1], cmdv[2]);
} else {
cpio_extract_all(&v);
return 0;
}
} else if (cmdc == 3 && strcmp(cmdv[0], "mkdir") == 0) {
cpio_mkdir(&v, strtoul(cmdv[1], NULL, 8), cmdv[2]);
} else if (cmdc == 3 && strcmp(cmdv[0], "ln") == 0) {
cpio_ln(&v, cmdv[1], cmdv[2]);
} else if (cmdc == 4 && strcmp(cmdv[0], "add") == 0) {
cpio_add(&v, strtoul(cmdv[1], NULL, 8), cmdv[2], cmdv[3]);
} else {
return 1;
}
} else if (argc == 2 && strcmp(command, "mkdir") == 0) {
cpio_mkdir(&v, strtoul(argv[0], NULL, 8), argv[1]);
} else if (argc == 2 && strcmp(command, "ln") == 0) {
cpio_ln(&v, argv[0], argv[1]);
} else if (argc == 3 && strcmp(command, "add") == 0) {
cpio_add(&v, strtoul(argv[0], NULL, 8), argv[1], argv[2]);
} else {
return 1;
--argc;
++argv;
}
dump_cpio(&v, incpio);
cpio_vec_destroy(&v);
exit(0);
return 0;
}

2
core/jni/resetprop/resetprop.cpp
View File

@ -209,7 +209,7 @@ public:
vector prop_list;
static int prop_cmp(const void *p1, const void *p2) {
return strcmp((*((property **) p1))->name, (*((property **) p2))->name);
return strcmp(((property *) p1)->name, ((property *) p2)->name);
}
static void print_all_props_cb(const char *name, const char *value) {

223
core/jni/utils/cpio.c
View File

@ -22,34 +22,42 @@ static uint32_t x8u(char *hex) {
return val;
}
static void cpio_free(cpio_entry *f) {
if (f) {
free(f->filename);
free(f->data);
free(f);
void cpio_free(cpio_entry *e) {
if (e) {
free(e->filename);
free(e->data);
free(e);
}
}
int cpio_find(struct vector *v, const char *entry) {
cpio_entry *e;
vec_for_each(v, e) {
if (!e) continue;
if (strcmp(e->filename, entry) == 0)
return _;
}
return -1;
}
int cpio_cmp(const void *a, const void *b) {
return strcmp((*(cpio_entry **) a)->filename, (*(cpio_entry **) b)->filename);
return strcmp(((cpio_entry *) a)->filename, ((cpio_entry *) b)->filename);
}
void cpio_vec_insert(struct vector *v, cpio_entry *n) {
cpio_entry *f;
vec_for_each(v, f) {
if (strcmp(f->filename, n->filename) == 0) {
// Replace, then all is done
cpio_free(f);
vec_cur(v) = n;
return;
}
int i = cpio_find(v, n->filename);
if (i > 0) {
// Replace, then all is done
cpio_free(vec_entry(v)[i]);
vec_entry(v)[i] = n;
return;
}
vec_push_back(v, n);
}
// Parse cpio file to a vector of cpio_entry
void parse_cpio(struct vector *v, const char *filename) {
fprintf(stderr, "Loading cpio: [%s]\n\n", filename);
fprintf(stderr, "Loading cpio: [%s]\n", filename);
int fd = open(filename, O_RDONLY);
if (fd < 0) return;
cpio_newc_header header;
@ -91,35 +99,34 @@ void parse_cpio(struct vector *v, const char *filename) {
}
void dump_cpio(struct vector *v, const char *filename) {
fprintf(stderr, "\nDump cpio: [%s]\n\n", filename);
int fd = creat(filename, 0644);
fprintf(stderr, "Dump cpio: [%s]\n", filename);
unsigned inode = 300000;
char header[111];
// Sort by name
vec_sort(v, cpio_cmp);
cpio_entry *f;
vec_for_each(v, f) {
if (f->remove) continue;
cpio_entry *e;
int fd = creat(filename, 0644);
vec_for_each(v, e) {
sprintf(header, "070701%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x",
inode++, // f->ino
f->mode,
f->uid,
f->gid,
1, // f->nlink
0, // f->mtime
f->filesize,
0, // f->devmajor
0, // f->devminor
0, // f->rdevmajor
0, // f->rdevminor
(uint32_t) strlen(f->filename) + 1,
0 // f->check
inode++, // e->ino
e->mode,
e->uid,
e->gid,
1, // e->nlink
0, // e->mtime
e->filesize,
0, // e->devmajor
0, // e->devminor
0, // e->rdevmajor
0, // e->rdevminor
(uint32_t) strlen(e->filename) + 1,
0 // e->check
);
xwrite(fd, header, 110);
xwrite(fd, f->filename, strlen(f->filename) + 1);
xwrite(fd, e->filename, strlen(e->filename) + 1);
file_align(fd, 4, 1);
if (f->filesize) {
xwrite(fd, f->data, f->filesize);
if (e->filesize) {
xwrite(fd, e->data, e->filesize);
file_align(fd, 4, 1);
}
}
@ -133,23 +140,22 @@ void dump_cpio(struct vector *v, const char *filename) {
void cpio_vec_destroy(struct vector *v) {
// Free each cpio_entry
cpio_entry *f;
vec_for_each(v, f) {
cpio_free(f);
}
cpio_entry *e;
vec_for_each(v, e)
cpio_free(e);
vec_destroy(v);
}
void cpio_rm(struct vector *v, int recursive, const char *entry) {
cpio_entry *f;
vec_for_each(v, f) {
if (strncmp(f->filename, entry, strlen(entry)) == 0) {
char next = f->filename[strlen(entry)];
if ((recursive && next == '/') || next == '\0') {
if (!f->remove) {
fprintf(stderr, "Remove [%s]\n", f->filename);
f->remove = 1;
}
cpio_entry *e;
size_t len = strlen(entry);
vec_for_each(v, e) {
if (!e) continue;
if (strncmp(e->filename, entry, len) == 0) {
if ((recursive && e->filename[len] == '/') || e->filename[len] == '\0') {
fprintf(stderr, "Remove [%s]\n", e->filename);
cpio_free(e);
vec_cur(v) = NULL;
if (!recursive) return;
}
}
@ -157,97 +163,94 @@ void cpio_rm(struct vector *v, int recursive, const char *entry) {
}
void cpio_mkdir(struct vector *v, mode_t mode, const char *entry) {
cpio_entry *f = xcalloc(sizeof(*f), 1);
f->mode = S_IFDIR | mode;
f->filename = strdup(entry);
cpio_vec_insert(v, f);
cpio_entry *e = xcalloc(sizeof(*e), 1);
e->mode = S_IFDIR | mode;
e->filename = strdup(entry);
cpio_vec_insert(v, e);
fprintf(stderr, "Create directory [%s] (%04o)\n",entry, mode);
}
void cpio_ln(struct vector *v, const char *target, const char *entry) {
cpio_entry *f = xcalloc(sizeof(*f), 1);
f->mode = S_IFLNK;
f->filename = strdup(entry);
f->filesize = strlen(target);
f->data = strdup(target);
cpio_vec_insert(v, f);
cpio_entry *e = xcalloc(sizeof(*e), 1);
e->mode = S_IFLNK;
e->filename = strdup(entry);
e->filesize = strlen(target);
e->data = strdup(target);
cpio_vec_insert(v, e);
fprintf(stderr, "Create symlink [%s] -> [%s]\n", entry, target);
}
void cpio_add(struct vector *v, mode_t mode, const char *entry, const char *filename) {
int fd = xopen(filename, O_RDONLY);
cpio_entry *f = xcalloc(sizeof(*f), 1);
f->mode = S_IFREG | mode;
f->filename = strdup(entry);
f->filesize = lseek(fd, 0, SEEK_END);
cpio_entry *e = xcalloc(sizeof(*e), 1);
e->mode = S_IFREG | mode;
e->filename = strdup(entry);
e->filesize = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
f->data = xmalloc(f->filesize);
xxread(fd, f->data, f->filesize);
e->data = xmalloc(e->filesize);
xxread(fd, e->data, e->filesize);
close(fd);
cpio_vec_insert(v, f);
cpio_vec_insert(v, e);
fprintf(stderr, "Add entry [%s] (%04o)\n", entry, mode);
}
int cpio_mv(struct vector *v, const char *from, const char *to) {
struct cpio_entry *f, *t;
vec_for_each(v, f) {
if (strcmp(f->filename, from) == 0) {
fprintf(stderr, "Move [%s] -> [%s]\n", from, to);
vec_for_each(v, t) {
if (strcmp(t->filename, to) == 0) {
t->remove = 1;
break;
}
}
free(f->filename);
f->filename = strdup(to);
return 0;
struct cpio_entry *e;
int f = cpio_find(v, from), t = cpio_find(v, to);
if (f > 0) {
if (t > 0) {
cpio_free(vec_entry(v)[t]);
vec_entry(v)[t] = NULL;
}
e = vec_entry(v)[f];
free(e->filename);
e->filename = strdup(to);
return 0;
}
fprintf(stderr, "Cannot find entry %s\n", from);
return 1;
}
int cpio_extract(struct vector *v, const char *entry, const char *filename) {
cpio_entry *f;
vec_for_each(v, f) {
if (strcmp(f->filename, entry) == 0) {
fprintf(stderr, "Extracting [%s] to [%s]\n\n", entry, filename);
if (S_ISREG(f->mode)) {
int fd = creat(filename, f->mode & 0777);
xwrite(fd, f->data, f->filesize);
fchown(fd, f->uid, f->gid);
close(fd);
} else if (S_ISLNK(f->mode)) {
char *target = xcalloc(f->filesize + 1, 1);
memcpy(target, f->data, f->filesize);
unlink(filename);
symlink(target, filename);
}
return 0;
int i = cpio_find(v, entry);
if (i > 0) {
cpio_entry *e = vec_entry(v)[i];
fprintf(stderr, "Extracting [%s] to [%s]\n", entry, filename);
if (S_ISREG(e->mode)) {
int fd = creat(filename, e->mode & 0777);
xwrite(fd, e->data, e->filesize);
fchown(fd, e->uid, e->gid);
close(fd);
} else if (S_ISLNK(e->mode)) {
char *target = xcalloc(e->filesize + 1, 1);
memcpy(target, e->data, e->filesize);
unlink(filename);
symlink(target, filename);
}
return 0;
}
fprintf(stderr, "Cannot find the file entry [%s]\n", entry);
return 1;
}
void cpio_extract_all(struct vector *v) {
cpio_entry *f;
vec_for_each(v, f) {
fprintf(stderr, "Extracting [%s]\n", f->filename);
unlink(f->filename);
rmdir(f->filename);
if (S_ISDIR(f->mode)) {
mkdir(f->filename, f->mode & 0777);
} else if (S_ISREG(f->mode)) {
int fd = creat(f->filename, f->mode & 0777);
xwrite(fd, f->data, f->filesize);
fchown(fd, f->uid, f->gid);
cpio_entry *e;
vec_for_each(v, e) {
if (!e) continue;
fprintf(stderr, "Extracting [%s]\n", e->filename);
unlink(e->filename);
rmdir(e->filename);
if (S_ISDIR(e->mode)) {
mkdir(e->filename, e->mode & 0777);
} else if (S_ISREG(e->mode)) {
int fd = creat(e->filename, e->mode & 0777);
xwrite(fd, e->data, e->filesize);
fchown(fd, e->uid, e->gid);
close(fd);
} else if (S_ISLNK(f->mode)) {
char *target = xcalloc(f->filesize + 1, 1);
memcpy(target, f->data, f->filesize);
symlink(target, f->filename);
} else if (S_ISLNK(e->mode)) {
char *target = xcalloc(e->filesize + 1, 1);
memcpy(target, e->data, e->filesize);
symlink(target, e->filename);
}
}
}

18
core/jni/utils/vector.c
View File

@ -29,9 +29,25 @@ void *vec_pop_back(struct vector *v) {
return ret;
}
static int (*cmp)(const void *, const void *);
static int vec_comp(const void *a, const void *b) {
void *aa = *((void **)a), *bb = *((void **)b);
if (aa == NULL && bb == NULL) return 0;
else if (aa == NULL) return 1;
else if (bb == NULL) return -1;
else return cmp ? cmp(aa, bb) : 0;
}
void vec_sort(struct vector *v, int (*compar)(const void *, const void *)) {
if (v == NULL) return;
qsort(vec_entry(v), vec_size(v), sizeof(void*), compar);
cmp = compar;
qsort(vec_entry(v), vec_size(v), sizeof(void*), vec_comp);
void *e;
vec_for_each_r(v, e) {
if (e) break;
--vec_size(v);
}
}
/* Will cleanup only the vector itself

26
scripts/boot_patch.sh
View File

@ -89,6 +89,7 @@ case $? in
2 )
ui_print "! Insufficient boot partition size detected"
HIGHCOMP=true
ui_print "- Enable high compression mode"
;;
3 )
ui_print "- ChromeOS boot image detected"
@ -103,20 +104,13 @@ case $? in
abort "! Stock kernel cannot be patched, please use a custom kernel"
esac
if [ -f /sdcard/ramdisk-recovery.img ]; then
HIGHCOMP=true
ui_print "- Detected ramdisk-recovery.img"
fi
$HIGHCOMP && ui_print "- Enable high compression mode"
##########################################################################################
# Ramdisk restores
##########################################################################################
# Test patch status and do restore, after this section, ramdisk.cpio.orig is guaranteed to exist
ui_print "- Checking ramdisk status"
./magiskboot --cpio-test ramdisk.cpio
./magiskboot --cpio ramdisk.cpio test
case $? in
0 ) # Stock boot
ui_print "- Stock boot image detected!"
@ -129,8 +123,8 @@ case $? in
1 ) # Magisk patched
ui_print "- Magisk patched image detected!"
# Find SHA1 of stock boot image
[ -z $SHA1 ] && SHA1=`./magiskboot --cpio-stocksha1 ramdisk.cpio 2>/dev/null`
./magiskboot --cpio-restore ramdisk.cpio
[ -z $SHA1 ] && SHA1=`./magiskboot --cpio ramdisk.cpio sha1 2>/dev/null`
./magiskboot --cpio ramdisk.cpio restore
cp -af ramdisk.cpio ramdisk.cpio.orig
;;
2 ) # Other patched
@ -145,18 +139,12 @@ esac
ui_print "- Patching ramdisk"
./magiskboot --cpio-add ramdisk.cpio 750 init magiskinit
./magiskboot --cpio-backup ramdisk.cpio ramdisk.cpio.orig $HIGHCOMP $KEEPVERITY $KEEPFORCEENCRYPT $SHA1
./magiskboot --cpio ramdisk.cpio \
'add 750 init magiskinit' \
"magisk ramdisk.cpio.orig $HIGHCOMP $KEEPVERITY $KEEPFORCEENCRYPT $SHA1"
rm -f ramdisk.cpio.orig
if [ -f /sdcard/ramdisk-recovery.img ]; then
ui_print "- Adding ramdisk-recovery.img"
./magiskboot --decompress - < /sdcard/ramdisk-recovery.img | ./magiskboot --compress=xz - ramdisk-recovery.xz
./magiskboot --cpio-add ramdisk.cpio 0 ramdisk-recovery.xz ramdisk-recovery.xz
rm ramdisk-recovery.xz
fi
##########################################################################################
# Binary patches
##########################################################################################

9
scripts/magisk_uninstaller.sh
View File

@ -71,7 +71,7 @@ esac
# Detect boot image state
ui_print "- Checking ramdisk status"
./magiskboot --cpio-test ramdisk.cpio
./magiskboot --cpio ramdisk.cpio test
case $? in
0 ) # Stock boot
ui_print "- Stock boot image detected!"
@ -80,13 +80,13 @@ case $? in
1 ) # Magisk patched
ui_print "- Magisk patched image detected!"
# Find SHA1 of stock boot image
[ -z $SHA1 ] && SHA1=`./magiskboot --cpio-stocksha1 ramdisk.cpio 2>/dev/null`
[ -z $SHA1 ] && SHA1=`./magiskboot --cpio ramdisk.cpio sha1 2>/dev/null`
OK=false
[ ! -z $SHA1 ] && restore_imgs $SHA1 && OK=true
if ! $OK; then
ui_print "! Boot image backup unavailable"
ui_print "- Restoring ramdisk with internal backup"
./magiskboot --cpio-restore ramdisk.cpio
./magiskboot --cpio ramdisk.cpio restore
./magiskboot --repack $BOOTIMAGE
# Sign chromeos boot
$CHROMEOS && sign_chromeos
@ -104,6 +104,7 @@ cd /
ui_print "- Removing Magisk files"
rm -rf /cache/*magisk* /cache/unblock /data/*magisk* /data/cache/*magisk* /data/property/*magisk* \
/data/Magisk.apk /data/busybox /data/custom_ramdisk_patch.sh /data/app/com.topjohnwu.magisk* \
/data/user*/*/magisk.db /data/user*/*/com.topjohnwu.magisk /data/adb/*magisk* 2>/dev/null
/data/user*/*/magisk.db /data/user*/*/com.topjohnwu.magisk /data/user*/*/.tmp.magisk.config \
/data/adb/*magisk* 2>/dev/null
$BOOTMODE && reboot

4
scripts/util_functions.sh
View File

@ -7,11 +7,11 @@
#
##########################################################################################
MAGISK_VERSION_STUB
#MAGISK_VERSION_STUB
SCRIPT_VERSION=$MAGISK_VER_CODE
# Default location, will override if needed
MAGISKBIN=/data/adb/magisk
[ -d /data/adb/magisk ] && MAGISKBIN=/data/adb/magisk || MAGISKBIN=/data/magisk
BOOTSIGNER="/system/bin/dalvikvm -Xnodex2oat -Xnoimage-dex2oat -cp \$APK com.topjohnwu.magisk.utils.BootSigner"
BOOTSIGNED=false