static void call_main(void *p)
{
char *c, quote;
#ifdef CONFIG_QEMU_XS_ARGS
char *domargs, *msg;
#endif
int argc;
char **argv;
char *envp[] = { NULL };
#ifdef CONFIG_QEMU_XS_ARGS
char *vm;
char path[128];
int domid;
#endif
int i;
/* Let other parts initialize (including console output) before maybe
* crashing. */
//sleep(1);
//printk("Start call_main : main.c\n");
#ifdef CONFIG_SPARSE_BSS
sparse((unsigned long) &__app_bss_start, &__app_bss_end - &__app_bss_start);
#endif
#if defined(HAVE_LWIP) && defined(CONFIG_START_NETWORK) && defined(CONFIG_NETFRONT)
start_networking();
#endif
#ifdef CONFIG_PCIFRONT
create_thread("pcifront", pcifront_watches, NULL);
#endif
#ifdef CONFIG_QEMU_XS_ARGS
/* Fetch argc, argv from XenStore */
domid = xenbus_read_integer("target");
if (domid == -1) {
printk("Couldn't read target\n");
do_exit();
}
snprintf(path, sizeof(path), "/local/domain/%d/vm", domid);
msg = xenbus_read(XBT_NIL, path, &vm);
if (msg) {
printk("Couldn't read vm path\n");
do_exit();
}
printk("dom vm is at %s\n", vm);
snprintf(path, sizeof(path), "%s/image/dmargs", vm);
free(vm);
msg = xenbus_read(XBT_NIL, path, &domargs);
if (msg) {
printk("Couldn't get stubdom args: %s\n", msg);
domargs = strdup("");
}
#endif
argc = 1;
#define PARSE_ARGS(ARGS,START,QUOTE,END) \
c = ARGS; \
quote = 0; \
while (*c) { \
if (*c != ' ') { \
START; \
while (*c) { \
if (quote) { \
if (*c == quote) { \
quote = 0; \
QUOTE; \
continue; \
} \
} else if (*c == ' ') \
break; \
if (*c == '"' || *c == '\'') { \
quote = *c; \
QUOTE; \
continue; \
} \
c++; \
} \
} else { \
END; \
while (*c == ' ') \
c++; \
} \
} \
if (quote) {\
printk("Warning: unterminated quotation %c\n", quote); \
quote = 0; \
}
#define PARSE_ARGS_COUNT(ARGS) PARSE_ARGS(ARGS, argc++, c++, )
#define PARSE_ARGS_STORE(ARGS) PARSE_ARGS(ARGS, argv[argc++] = c, memmove(c, c + 1, strlen(c + 1) + 1), *c++ = 0)
PARSE_ARGS_COUNT((char*)start_info.cmd_line);
#ifdef CONFIG_QEMU_XS_ARGS
PARSE_ARGS_COUNT(domargs);
#endif
argv = alloca((argc + 1) * sizeof(char *));
argv[0] = "main";
argc = 1;
PARSE_ARGS_STORE((char*)start_info.cmd_line)
#ifdef CONFIG_QEMU_XS_ARGS
PARSE_ARGS_STORE(domargs)
#endif
argv[argc] = NULL;
for (i = 0; i < argc; i++)
printf("\"%s\" ", argv[i]);
//printf("\n");
__libc_init_array();
environ = envp;
for (i = 0; __CTOR_LIST__[i] != 0; i++)
((void((*)(void)))__CTOR_LIST__[i]) ();
tzset();
exit(main(argc, argv, envp));
}
int main(int argc, char **argv) {
int mode, sock;
size_t length;
// Alice's public and secret keys
unsigned char *a_pk;
unsigned char *a_sk;
// Bob's public key
unsigned char *b_pk;
if (argc != 1 + 6) {
fprintf(stderr, usage);
return EXIT_FAILURE;
}
// read all the keys off the disk
if (read_from_file(argv[2], &a_pk, &length)) {
fprintf(stderr, "Failed to read sender's public key\n");
return EXIT_FAILURE;
}
if (length != crypto_box_PUBLICKEYBYTES) {
fprintf(stderr, "Failed to read sender's public key: incorrect size\n");
return EXIT_FAILURE;
}
if (read_from_file(argv[3], &a_sk, &length)) {
fprintf(stderr, "Failed to read sender's private key\n");
return EXIT_FAILURE;
}
if (length != crypto_box_SECRETKEYBYTES) {
fprintf(stderr, "Failed to read sender's private key: incorrect size\n");
return EXIT_FAILURE;
}
if (read_from_file(argv[4], &b_pk, &length)) {
fprintf(stderr, "Failed to read recipient's public key\n");
return EXIT_FAILURE;
}
if (length != crypto_box_PUBLICKEYBYTES) {
fprintf(stderr, "Failed to read recipient's public key: incorrect size\n");
}
if (!strcmp(argv[1], "client")) {
mode = client_mode;
} else if (!strcmp(argv[1], "server")) {
mode = server_mode;
} else {
fprintf(stderr, usage);
return EXIT_FAILURE;
}
// Connect
if(start_networking(mode, argv[5], argv[6], &sock)) {
puts("Could not network..");
close(sock);
return EXIT_FAILURE;
}
unsigned char key[crypto_secretbox_KEYBYTES + crypto_box_ZEROBYTES] = {0};
key_exchange(a_sk, b_pk, key, mode, sock);
write_to_file((mode ? "alice.asymm" : "bob.asymm"), key + crypto_box_ZEROBYTES, crypto_secretbox_KEYBYTES);
return 0;
}
