summaryrefslogtreecommitdiff
path: root/cmds/idmap/inspect.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'cmds/idmap/inspect.cpp')
-rw-r--r--cmds/idmap/inspect.cpp313
1 files changed, 0 insertions, 313 deletions
diff --git a/cmds/idmap/inspect.cpp b/cmds/idmap/inspect.cpp
deleted file mode 100644
index 20005e2766d8..000000000000
--- a/cmds/idmap/inspect.cpp
+++ /dev/null
@@ -1,313 +0,0 @@
-#include "idmap.h"
-
-#include <androidfw/AssetManager.h>
-#include <androidfw/ResourceTypes.h>
-#include <utils/ByteOrder.h>
-#include <utils/String8.h>
-
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-
-using namespace android;
-
-namespace {
- static const uint32_t IDMAP_MAGIC = 0x504D4449;
- static const size_t PATH_LENGTH = 256;
-
- void printe(const char *fmt, ...);
-
- class IdmapBuffer {
- private:
- const char* buf_;
- size_t len_;
- size_t pos_;
- public:
- IdmapBuffer() : buf_((const char *)MAP_FAILED), len_(0), pos_(0) {}
-
- ~IdmapBuffer() {
- if (buf_ != MAP_FAILED) {
- munmap(const_cast<char*>(buf_), len_);
- }
- }
-
- status_t init(const char *idmap_path) {
- struct stat st;
- int fd;
-
- if (stat(idmap_path, &st) < 0) {
- printe("failed to stat idmap '%s': %s\n", idmap_path, strerror(errno));
- return UNKNOWN_ERROR;
- }
- len_ = st.st_size;
- if ((fd = TEMP_FAILURE_RETRY(open(idmap_path, O_RDONLY))) < 0) {
- printe("failed to open idmap '%s': %s\n", idmap_path, strerror(errno));
- return UNKNOWN_ERROR;
- }
- if ((buf_ = (const char*)mmap(NULL, len_, PROT_READ, MAP_PRIVATE, fd, 0)) == MAP_FAILED) {
- close(fd);
- printe("failed to mmap idmap: %s\n", strerror(errno));
- return UNKNOWN_ERROR;
- }
- close(fd);
- return NO_ERROR;
- }
-
- status_t nextUint32(uint32_t* i) {
- if (!buf_) {
- printe("failed to read next uint32_t: buffer not initialized\n");
- return UNKNOWN_ERROR;
- }
-
- if (pos_ + sizeof(uint32_t) > len_) {
- printe("failed to read next uint32_t: end of buffer reached at pos=0x%08x\n",
- pos_);
- return UNKNOWN_ERROR;
- }
-
- if ((reinterpret_cast<uintptr_t>(buf_ + pos_) & 0x3) != 0) {
- printe("failed to read next uint32_t: not aligned on 4-byte boundary\n");
- return UNKNOWN_ERROR;
- }
-
- *i = dtohl(*reinterpret_cast<const uint32_t*>(buf_ + pos_));
- pos_ += sizeof(uint32_t);
- return NO_ERROR;
- }
-
- status_t nextUint16(uint16_t* i) {
- if (!buf_) {
- printe("failed to read next uint16_t: buffer not initialized\n");
- return UNKNOWN_ERROR;
- }
-
- if (pos_ + sizeof(uint16_t) > len_) {
- printe("failed to read next uint16_t: end of buffer reached at pos=0x%08x\n",
- pos_);
- return UNKNOWN_ERROR;
- }
-
- if ((reinterpret_cast<uintptr_t>(buf_ + pos_) & 0x1) != 0) {
- printe("failed to read next uint32_t: not aligned on 2-byte boundary\n");
- return UNKNOWN_ERROR;
- }
-
- *i = dtohs(*reinterpret_cast<const uint16_t*>(buf_ + pos_));
- pos_ += sizeof(uint16_t);
- return NO_ERROR;
- }
-
- status_t nextPath(char *b) {
- if (!buf_) {
- printe("failed to read next path: buffer not initialized\n");
- return UNKNOWN_ERROR;
- }
- if (pos_ + PATH_LENGTH > len_) {
- printe("failed to read next path: end of buffer reached at pos=0x%08x\n", pos_);
- return UNKNOWN_ERROR;
- }
- memcpy(b, buf_ + pos_, PATH_LENGTH);
- pos_ += PATH_LENGTH;
- return NO_ERROR;
- }
- };
-
- void printe(const char *fmt, ...) {
- va_list ap;
-
- va_start(ap, fmt);
- fprintf(stderr, "error: ");
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- }
-
- void print_header() {
- printf("SECTION ENTRY VALUE COMMENT\n");
- }
-
- void print(const char *section, const char *subsection, uint32_t value, const char *fmt, ...) {
- va_list ap;
-
- va_start(ap, fmt);
- printf("%-12s %-12s 0x%08x ", section, subsection, value);
- vprintf(fmt, ap);
- printf("\n");
- va_end(ap);
- }
-
- void print_path(const char *section, const char *subsection, const char *fmt, ...) {
- va_list ap;
-
- va_start(ap, fmt);
- printf("%-12s %-12s .......... ", section, subsection);
- vprintf(fmt, ap);
- printf("\n");
- va_end(ap);
- }
-
- status_t resource_metadata(const AssetManager& am, uint32_t res_id,
- String8 *package, String8 *type, String8 *name) {
- const ResTable& rt = am.getResources();
- struct ResTable::resource_name data;
- if (!rt.getResourceName(res_id, false, &data)) {
- printe("failed to get resource name id=0x%08x\n", res_id);
- return UNKNOWN_ERROR;
- }
- if (package != NULL) {
- *package = String8(String16(data.package, data.packageLen));
- }
- if (type != NULL) {
- *type = String8(String16(data.type, data.typeLen));
- }
- if (name != NULL) {
- *name = String8(String16(data.name, data.nameLen));
- }
- return NO_ERROR;
- }
-
- status_t parse_idmap_header(IdmapBuffer& buf, AssetManager& am) {
- uint32_t i;
- char path[PATH_LENGTH];
-
- status_t err = buf.nextUint32(&i);
- if (err != NO_ERROR) {
- return err;
- }
-
- if (i != IDMAP_MAGIC) {
- printe("not an idmap file: actual magic constant 0x%08x does not match expected magic "
- "constant 0x%08x\n", i, IDMAP_MAGIC);
- return UNKNOWN_ERROR;
- }
-
- print_header();
- print("IDMAP HEADER", "magic", i, "");
-
- err = buf.nextUint32(&i);
- if (err != NO_ERROR) {
- return err;
- }
- print("", "version", i, "");
-
- err = buf.nextUint32(&i);
- if (err != NO_ERROR) {
- return err;
- }
- print("", "base crc", i, "");
-
- err = buf.nextUint32(&i);
- if (err != NO_ERROR) {
- return err;
- }
- print("", "overlay crc", i, "");
-
- err = buf.nextPath(path);
- if (err != NO_ERROR) {
- // printe done from IdmapBuffer::nextPath
- return err;
- }
- print_path("", "base path", "%s", path);
-
- if (!am.addAssetPath(String8(path), NULL)) {
- printe("failed to add '%s' as asset path\n", path);
- return UNKNOWN_ERROR;
- }
-
- err = buf.nextPath(path);
- if (err != NO_ERROR) {
- // printe done from IdmapBuffer::nextPath
- return err;
- }
- print_path("", "overlay path", "%s", path);
-
- return NO_ERROR;
- }
-
- status_t parse_data(IdmapBuffer& buf, const AssetManager& am) {
- const uint32_t packageId = am.getResources().getBasePackageId(0);
-
- uint16_t data16;
- status_t err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- print("DATA HEADER", "target pkg", static_cast<uint32_t>(data16), "");
-
- err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- print("", "types count", static_cast<uint32_t>(data16), "");
-
- uint32_t typeCount = static_cast<uint32_t>(data16);
- while (typeCount > 0) {
- typeCount--;
-
- err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- const uint32_t targetTypeId = static_cast<uint32_t>(data16);
- print("DATA BLOCK", "target type", targetTypeId, "");
-
- err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- print("", "overlay type", static_cast<uint32_t>(data16), "");
-
- err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- const uint32_t entryCount = static_cast<uint32_t>(data16);
- print("", "entry count", entryCount, "");
-
- err = buf.nextUint16(&data16);
- if (err != NO_ERROR) {
- return err;
- }
- const uint32_t entryOffset = static_cast<uint32_t>(data16);
- print("", "entry offset", entryOffset, "");
-
- for (uint32_t i = 0; i < entryCount; i++) {
- uint32_t data32;
- err = buf.nextUint32(&data32);
- if (err != NO_ERROR) {
- return err;
- }
-
- uint32_t resID = (packageId << 24) | (targetTypeId << 16) | (entryOffset + i);
- String8 type;
- String8 name;
- err = resource_metadata(am, resID, NULL, &type, &name);
- if (err != NO_ERROR) {
- return err;
- }
- if (data32 != ResTable_type::NO_ENTRY) {
- print("", "entry", data32, "%s/%s", type.string(), name.string());
- }
- }
- }
-
- return NO_ERROR;
- }
-}
-
-int idmap_inspect(const char *idmap_path) {
- IdmapBuffer buf;
- if (buf.init(idmap_path) < 0) {
- // printe done from IdmapBuffer::init
- return EXIT_FAILURE;
- }
- AssetManager am;
- if (parse_idmap_header(buf, am) != NO_ERROR) {
- // printe done from parse_idmap_header
- return EXIT_FAILURE;
- }
- if (parse_data(buf, am) != NO_ERROR) {
- // printe done from parse_data_header
- return EXIT_FAILURE;
- }
- return EXIT_SUCCESS;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-03 04:06:42 +0000