Files
palera1n/src/optparse.c
T
2023-02-03 13:22:07 +08:00

286 lines
9.3 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <fcntl.h>
#include <stddef.h>
#include <unistd.h>
#include <stdarg.h>
#include <ctype.h>
#include <assert.h>
#include <getopt.h>
#include <errno.h>
#include <common.h>
static struct option longopts[] = {
{"setup-fakefs", no_argument, NULL, 'c'},
{"setup-fakefs-forced", no_argument, NULL, 'C'},
{"dfuhelper", no_argument, NULL, 'D'},
{"help", no_argument, NULL, 'h'},
{"pongo-shell", no_argument, NULL, 'p'},
{"pongo-full", no_argument, NULL, 'P'},
{"debug-logging", no_argument, NULL, 'v'},
{"verbose-boot", no_argument, NULL, 'V'},
{"boot-args", required_argument, NULL, 'e'},
{"fakefs", no_argument, NULL, 'f'},
{"rootless", no_argument, NULL, 'l'},
{"jbinit-log-to-file", no_argument, NULL, 'L'},
{"demote", no_argument, NULL, 'd'},
{"force-revert", no_argument, NULL, checkrain_option_force_revert},
{"safe-mode", no_argument, NULL, 's'},
{"version", no_argument, NULL, palerain_option_version},
{"override-pongo", required_argument, NULL, 'k'},
{"override-overlay", required_argument, NULL, 'o'},
{"override-ramdisk", required_argument, NULL, 'r'},
{"override-kpf", required_argument, NULL, 'K'},
{"disable-ohio", no_argument, NULL, 'O'},
{"override-checkra1n", required_argument, NULL, '1'},
#ifdef DEV_BUILD
{"tui", no_argument, NULL, 't'},
#endif
{NULL, 0, NULL, 0}
};
static int usage(int e, char* prog_name)
{
fprintf(stderr,
#ifdef DEV_BUILD
"Usage: %s [-cCDhpvVldsOLtf]"
#else
"Usage: %s [-cCDhpvVldsOLf]"
#endif
" [-e boot arguments] [-k Pongo image] [-o overlay file] [-r ramdisk file] [-K KPF file] [-1 checkra1n file]\n"
"Copyright (C) 2023, palera1n team, All Rights Reserved.\n\n"
"iOS/iPadOS 15+ arm64 jailbreaking tool\n\n"
"\t--version\t\t\t\tPrint version\n"
"\t--force-revert\t\t\t\tRemove jailbreak\n"
"\t-c, --setup-fakefs\t\t\tSetup fakefs\n"
"\t-C, --setup-fakefs-forced\t\tSetup fakefs and overwrite any existing ones\n"
"\t-D, --dfuhelper-only\t\t\tExit after entering DFU\n"
"\t-h, --help\t\t\t\tShow this help\n"
"\t-p, --pongo-shell\t\t\tBoots to PongoOS shell\n"
"\t-P, --pongo-full\t\t\tBoots to a PongoOS shell with default images already uploaded\n"
"\t-v, --debug-logging\t\t\tEnable debug logging\n"
"\t\tThis option can be repeated for extra verbosity.\n"
"\t-V, --verbose-boot\t\t\tVerbose boot\n"
"\t-L, --jbinit-log-to-file\t\tMake jbinit log to /cores/jbinit.log (can be read from sandbox while jailbroken)\n"
"\t-e, --boot-args <boot arguments>\tXNU boot arguments\n"
"\t-f, --fakefs \t\t\t\tBoots fakefs\n"
"\t-l, --rootless\t\t\t\tBoots rootless. This is the default\n"
"\t-s, --safe-mode\t\t\t\tEnter safe mode\n"
"\t-d, --demote\t\t\t\tDemote\n"
"\t-k, --override-pongo <file>\t\tOverride Pongo image\n"
"\t-o, --override-overlay <file>\t\tOverride overlay\n"
"\t-r, --override-ramdisk <file>\t\tOverride ramdisk\n"
"\t-K, --override-kpf <file>\t\tOverride kernel patchfinder\n"
"\t-1, --override-checkra1n <file>\t\tOverride checkra1n\n"
"\t-O, --disable-ohio\t\t\tDisable Ohio\n"
#ifdef DEV_BUILD
"\t-t, --tui\t\t\t\tTerminal user interface\n"
#endif
"\nEnvironmental variables:\n"
"\tTMPDIR\t\ttemporary diretory (path the built-in checkra1n will be extracted to)\n"
,
prog_name);
exit(e);
}
int optparse(int argc, char* argv[]) {
int opt;
int index;
while ((opt = getopt_long(argc, argv,
#ifdef DEV_BUILD
"cCDhpvVldsOLtfPe:o:r:K:k:1:",
#else
"cCDhpvVldsOLfPe:o:r:K:k:1:",
#endif
longopts, NULL)) != -1)
{
switch (opt) {
case 'c':
palerain_flags |= palerain_option_setup_rootful;
kpf_flags |= checkrain_option_verbose_boot;
break;
case 'C':
palerain_flags |= palerain_option_setup_rootful;
palerain_flags |= palerain_option_setup_rootful_forced;
kpf_flags |= checkrain_option_verbose_boot;
break;
case 'p':
pongo_exit = true;
break;
case 'P':
pongo_full = 1;
break;
case 'D':
dfuhelper_only = true;
break;
case 'h':
usage(0, argv[0]);
assert(0);
case 'v':
verbose++;
break;
case 'V':
kpf_flags |= checkrain_option_verbose_boot;
break;
case 'e':
if (strstr(optarg, "rootdev=") != NULL) {
LOG(LOG_FATAL, "The boot arg rootdev= is already used by palera1n and cannot be overriden");
return -1;
} else if (strlen(optarg) > (sizeof(xargs_cmd) - 0x20)) {
LOG(LOG_FATAL, "Boot arguments too long");
return -1;
}
snprintf(xargs_cmd, sizeof(xargs_cmd), "xargs %s", optarg);
break;
case 'f':
snprintf(rootfs_cmd, sizeof(rootfs_cmd), "rootfs %s", optarg);
snprintf(dtpatch_cmd, 0x20, "dtpatch %s", optarg);
enable_rootful = 1;
break;
case 'l':
enable_rootful = 0;
break;
case 'L':
palerain_flags |= palerain_option_jbinit_log_to_file;
break;
case 'd':
demote = 1;
break;
case 's':
checkrain_flags |= checkrain_option_safemode;
break;
case 'k':
if (access(optarg, F_OK) != 0) {
LOG(LOG_FATAL, "Cannot access pongo file at %s: %d (%s)", optarg, errno, strerror(errno));
return -1;
}
pongo_path = malloc(strlen(optarg) + 1);
strcpy(pongo_path, optarg);
break;
case 'o':
if (override_file(&override_overlay, overlay_to_upload, &binpack_dmg_len, optarg))
return 1;
break;
case 'r':
if (override_file(&override_ramdisk, ramdisk_to_upload, &ramdisk_dmg_len, optarg))
return 1;
break;
case 'K':
if (override_file(&override_kpf, kpf_to_upload, &checkra1n_kpf_pongo_len, optarg))
return 1;
struct mach_header_64* hdr = (struct mach_header_64*)override_kpf.ptr;
if (hdr->magic != MH_MAGIC_64 && hdr->magic != MH_CIGAM_64) {
LOG(LOG_FATAL, "Invalid kernel patchfinder: Not thin 64-bit Mach-O");
return -1;
} else if (hdr->filetype != MH_KEXT_BUNDLE) {
LOG(LOG_FATAL, "Invalid kernel patchfinder: Not a kext bundle");
return -1;
} else if (hdr->cputype != CPU_TYPE_ARM64) {
LOG(LOG_FATAL, "Invalid kernel patchfinder: CPU type is not arm64");
return -1;
}
break;
case '1': {};
struct stat st;
if (stat(optarg, &st) != 0) {
LOG(LOG_FATAL, "cannot stat external checkra1n file: %d (%s)", errno, strerror(errno));
return -1;
} else if (!(st.st_mode & S_IXUSR) && !(st.st_mode & S_IXGRP) && !(st.st_mode & S_IXOTH)) {
LOG(LOG_FATAL, "%s is not executable", optarg);
return -1;
};
ext_checkra1n = calloc(1, strlen(optarg) + 1);
snprintf(ext_checkra1n, strlen(optarg) + 1, "%s", optarg);
break;
case 'O':
ohio = false;
break;
#ifdef DEV_BUILD
case 't':
use_tui = true;
break;
#endif
case checkrain_option_force_revert:
checkrain_flags |= checkrain_option_force_revert;
break;
case palerain_option_version:
palerain_version = true;
break;
default:
usage(1, argv[0]);
break;
}
}
if (palerain_version) {
printf("palera1n version " PALERAIN_VERSION ": " BUILD_DATE "; " BUILD_WHOAMI ":" BUILD_TAG "/" BUILD_STYLE "\n");
return 0;
}
if (enable_rootful) {
palerain_flags |= palerain_option_rootful;
}
if (checkrain_option_enabled(checkrain_flags, checkrain_option_force_revert) && checkrain_option_enabled(palerain_flags, palerain_option_setup_rootful)) {
LOG(LOG_WARNING, "force revert and setup rootful requested at the same time, behaviour here is undefined");
}
snprintf(checkrain_flags_cmd, 0x20, "checkra1n_flags 0x%x", checkrain_flags);
snprintf(palerain_flags_cmd, 0x20, "palera1n_flags 0x%x", palerain_flags);
snprintf(kpf_flags_cmd, 0x20, "kpf_flags 0x%x", kpf_flags);
LOG(LOG_VERBOSE3, "checkrain_flags: %s", checkrain_flags_cmd);
LOG(LOG_VERBOSE3, "palerain_flags: %s", palerain_flags_cmd);
LOG(LOG_VERBOSE3, "kpf_flags: %s", kpf_flags_cmd);
if (override_kpf.magic == OVERRIDE_MAGIC) {
LOG(LOG_VERBOSE4, "kpf override length %u -> %u", override_kpf.orig_len, checkra1n_kpf_pongo_len);
LOG(LOG_VERBOSE4, "kpf override ptr %p -> %p", override_kpf.orig_ptr, **kpf_to_upload);
}
if (override_ramdisk.magic == OVERRIDE_MAGIC) {
LOG(LOG_VERBOSE4, "ramdisk override length %u -> %u", override_ramdisk.orig_len, ramdisk_dmg_len);
LOG(LOG_VERBOSE4, "ramdisk override ptr %p -> %p", override_ramdisk.orig_ptr, **ramdisk_to_upload);
}
if (override_overlay.magic == OVERRIDE_MAGIC) {
LOG(LOG_VERBOSE4, "overlay override length %u -> %u", override_overlay.orig_len, binpack_dmg_len);
LOG(LOG_VERBOSE4, "overlay override ptr %p -> %p", override_overlay.orig_ptr, **overlay_to_upload);
}
if (!checkrain_option_enabled(palerain_flags, palerain_option_rootful)) {
if (checkrain_option_enabled(palerain_flags, palerain_option_setup_rootful) || checkrain_option_enabled(palerain_flags, palerain_option_setup_rootful_forced)) {
LOG(LOG_FATAL, "Cannot setup rootful when rootless is requested. Use -f to enable rootful mode.");
return -1;
}
}
for (index = optind; index < argc; index++)
{
if (!strcmp("windows", argv[index]))
{
fprintf(stderr,
"Windows not really using for manipulating OSX images,\n"
"compiled in mingw tool for this working unstable and incorrectly\n");
return -2;
}
else
{
fprintf(stderr, "%s: unknown argument: %s\n", argv[0], argv[index]);
usage(1, argv[0]);
}
}
if (verbose >= 2) putenv("LIBUSB_DEBUG=1");
if (verbose >= 3)
{
irecv_set_debug_level(1);
putenv("LIBUSB_DEBUG=2");
}
if (verbose >= 4) {
idevice_set_debug_level(1);
putenv("LIBUSB_DEBUG=3");
}
if (verbose >= 5)
putenv("LIBUSB_DEBUG=4");
return 0;
}