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authorGravatar Jonathan Beck2008-10-25 16:11:27 +0200
committerGravatar Jonathan Beck2008-10-25 16:52:20 +0200
commit0b2cfd2c7c6211ff5902e48720c34067f238ce90 (patch)
tree9c30578b4288795e7589c959caa08f3547ca0b88 /src/lockdown.c
parentbbd813da84c1ff8484bbd3eb7f575775271424da (diff)
downloadlibimobiledevice-0b2cfd2c7c6211ff5902e48720c34067f238ce90.tar.gz
libimobiledevice-0b2cfd2c7c6211ff5902e48720c34067f238ce90.tar.bz2
Handle debugging through utilitary functions
Diffstat (limited to 'src/lockdown.c')
-rw-r--r--src/lockdown.c151
1 files changed, 52 insertions, 99 deletions
diff --git a/src/lockdown.c b/src/lockdown.c
index ffabd88..65cbf90 100644
--- a/src/lockdown.c
+++ b/src/lockdown.c
@@ -30,8 +30,6 @@
#include <libtasn1.h>
#include <gnutls/x509.h>
-extern int debug;
-
const ASN1_ARRAY_TYPE pkcs1_asn1_tab[] = {
{"PKCS1", 536872976, 0},
{0, 1073741836, 0},
@@ -176,13 +174,8 @@ iphone_error_t iphone_lckd_send(iphone_lckd_client_t client, char *raw_data, uin
length = htonl(length);
memcpy(real_query, &length, sizeof(length));
memcpy(real_query + 4, raw_data, ntohl(length));
- if (debug) {
- printf("lockdownd_send(): made the query, sending it along\n");
- FILE *packet = fopen("grpkt", "w");
- fwrite(real_query, 1, ntohl(length) + 4, packet);
- fclose(packet);
- packet = NULL;
- }
+ log_debug_msg("lockdownd_send(): made the query, sending it along\n");
+ dump_debug_buffer("grpkt", real_query, ntohl(length) + 4);
if (!client->in_SSL)
ret = iphone_mux_send(client->connection, real_query, ntohl(length) + sizeof(length), &bytes);
@@ -190,8 +183,7 @@ iphone_error_t iphone_lckd_send(iphone_lckd_client_t client, char *raw_data, uin
gnutls_record_send(*client->ssl_session, real_query, ntohl(length) + sizeof(length));
ret = IPHONE_E_SUCCESS;
}
- if (debug)
- printf("lockdownd_send(): sent it!\n");
+ log_debug_msg("lockdownd_send(): sent it!\n");
free(real_query);
*sent_bytes = bytes;
return ret;
@@ -215,8 +207,7 @@ iphone_error_t lockdownd_hello(iphone_lckd_client_t control)
int bytes = 0, i = 0;
iphone_error_t ret = IPHONE_E_UNKNOWN_ERROR;
- if (debug)
- printf("lockdownd_hello() called\n");
+ log_debug_msg("lockdownd_hello() called\n");
dict = add_child_to_plist(plist, "dict", "\n", NULL, 0);
key = add_key_str_dict_element(plist, dict, "Request", "QueryType", 1);
char *XML_content;
@@ -246,8 +237,7 @@ iphone_error_t lockdownd_hello(iphone_lckd_client_t control)
for (i = 0; dictionary[i]; i += 2) {
if (!strcmp(dictionary[i], "Result") && !strcmp(dictionary[i + 1], "Success")) {
- if (debug)
- printf("lockdownd_hello(): success\n");
+ log_debug_msg("lockdownd_hello(): success\n");
ret = IPHONE_E_SUCCESS;
break;
}
@@ -479,11 +469,9 @@ iphone_error_t lockdownd_pair_device(iphone_lckd_client_t control, char *uid, ch
if (ret != IPHONE_E_SUCCESS)
return ret;
- if (debug) {
- printf("lockdown_pair_device: iPhone's response to our pair request:\n");
- fwrite(XML_content, 1, bytes, stdout);
- printf("\n\n");
- }
+ log_debug_msg("lockdown_pair_device: iPhone's response to our pair request:\n");
+ log_debug_msg(XML_content);
+ log_debug_msg("\n\n");
plist = xmlReadMemory(XML_content, bytes, NULL, NULL, 0);
if (!plist) {
@@ -519,13 +507,11 @@ iphone_error_t lockdownd_pair_device(iphone_lckd_client_t control, char *uid, ch
/* store public key in config if pairing succeeded */
if (success) {
- if (debug)
- printf("lockdownd_pair_device: pair success\n");
+ log_debug_msg("lockdownd_pair_device: pair success\n");
store_device_public_key(uid, public_key_b64);
ret = IPHONE_E_SUCCESS;
} else {
- if (debug)
- printf("lockdownd_pair_device: pair failure\n");
+ log_debug_msg("lockdownd_pair_device: pair failure\n");
ret = IPHONE_E_PAIRING_FAILED;
}
free(public_key_b64);
@@ -678,15 +664,13 @@ iphone_error_t lockdownd_start_SSL_session(iphone_lckd_client_t control, const c
key = add_key_str_dict_element(plist, dict, "HostID", HostID, 1);
if (!key) {
- if (debug)
- printf("Couldn't add a key.\n");
+ log_debug_msg("Couldn't add a key.\n");
xmlFreeDoc(plist);
return IPHONE_E_DICT_ERROR;
}
key = add_key_str_dict_element(plist, dict, "Request", "StartSession", 1);
if (!key) {
- if (debug)
- printf("Couldn't add a key.\n");
+ log_debug_msg("Couldn't add a key.\n");
xmlFreeDoc(plist);
return IPHONE_E_DICT_ERROR;
}
@@ -719,8 +703,7 @@ iphone_error_t lockdownd_start_SSL_session(iphone_lckd_client_t control, const c
//gnutls_anon_client_credentials_t anoncred;
gnutls_certificate_credentials_t xcred;
- if (debug)
- printf("We started the session OK, now trying GnuTLS\n");
+ log_debug_msg("We started the session OK, now trying GnuTLS\n");
errno = 0;
gnutls_global_init();
//gnutls_anon_allocate_client_credentials(&anoncred);
@@ -743,32 +726,25 @@ iphone_error_t lockdownd_start_SSL_session(iphone_lckd_client_t control, const c
}
gnutls_credentials_set(*control->ssl_session, GNUTLS_CRD_CERTIFICATE, xcred); // this part is killing me.
- if (debug)
- printf("GnuTLS step 1...\n");
+ log_debug_msg("GnuTLS step 1...\n");
gnutls_transport_set_ptr(*control->ssl_session, (gnutls_transport_ptr_t) control);
- if (debug)
- printf("GnuTLS step 2...\n");
+ log_debug_msg("GnuTLS step 2...\n");
gnutls_transport_set_push_function(*control->ssl_session, (gnutls_push_func) & lockdownd_secuwrite);
- if (debug)
- printf("GnuTLS step 3...\n");
+ log_debug_msg("GnuTLS step 3...\n");
gnutls_transport_set_pull_function(*control->ssl_session, (gnutls_pull_func) & lockdownd_securead);
- if (debug)
- printf("GnuTLS step 4 -- now handshaking...\n");
+ log_debug_msg("GnuTLS step 4 -- now handshaking...\n");
- if (errno && debug)
- printf("WARN: errno says %s before handshake!\n", strerror(errno));
+ if (errno)
+ log_debug_msg("WARN: errno says %s before handshake!\n", strerror(errno));
return_me = gnutls_handshake(*control->ssl_session);
- if (debug)
- printf("GnuTLS handshake done...\n");
+ log_debug_msg("GnuTLS handshake done...\n");
free_dictionary(dictionary);
if (return_me != GNUTLS_E_SUCCESS) {
- if (debug)
- printf("GnuTLS reported something wrong.\n");
+ log_debug_msg("GnuTLS reported something wrong.\n");
gnutls_perror(return_me);
- if (debug)
- printf("oh.. errno says %s\n", strerror(errno));
+ log_debug_msg("oh.. errno says %s\n", strerror(errno));
return IPHONE_E_SSL_ERROR;
} else {
control->in_SSL = 1;
@@ -777,19 +753,17 @@ iphone_error_t lockdownd_start_SSL_session(iphone_lckd_client_t control, const c
}
}
- if (debug) {
- printf("Apparently failed negotiating with lockdownd.\n");
- printf("Responding dictionary: \n");
- for (i = 0; dictionary[i]; i += 2) {
- printf("\t%s: %s\n", dictionary[i], dictionary[i + 1]);
- }
+ log_debug_msg("Apparently failed negotiating with lockdownd.\n");
+ log_debug_msg("Responding dictionary: \n");
+ for (i = 0; dictionary[i]; i += 2) {
+ log_debug_msg("\t%s: %s\n", dictionary[i], dictionary[i + 1]);
}
+
free_dictionary(dictionary);
return IPHONE_E_SSL_ERROR;
} else {
- if (debug)
- printf("Didn't get enough bytes.\n");
+ log_debug_msg("Didn't get enough bytes.\n");
return IPHONE_E_NOT_ENOUGH_DATA;
}
}
@@ -807,21 +781,12 @@ ssize_t lockdownd_secuwrite(gnutls_transport_ptr_t transport, char *buffer, size
int bytes = 0;
iphone_lckd_client_t control;
control = (iphone_lckd_client_t) transport;
- if (debug)
- printf("lockdownd_secuwrite() called\n");
- if (debug)
- printf("pre-send\nlength = %zi\n", length);
+ log_debug_msg("lockdownd_secuwrite() called\n");
+ log_debug_msg("pre-send\nlength = %zi\n", length);
iphone_mux_send(control->connection, buffer, length, &bytes);
- if (debug)
- printf("post-send\nsent %i bytes\n", bytes);
- if (debug) {
- FILE *my_ssl_packet = fopen("sslpacketwrite.out", "w+");
- fwrite(buffer, 1, length, my_ssl_packet);
- fflush(my_ssl_packet);
- printf("Wrote SSL packet to drive, too.\n");
- fclose(my_ssl_packet);
- }
+ log_debug_msg("post-send\nsent %i bytes\n", bytes);
+ dump_debug_buffer("sslpacketwrite.out", buffer, length);
return bytes;
}
@@ -839,8 +804,7 @@ ssize_t lockdownd_securead(gnutls_transport_ptr_t transport, char *buffer, size_
char *hackhackhack = NULL;
iphone_lckd_client_t control;
control = (iphone_lckd_client_t) transport;
- if (debug)
- printf("lockdownd_securead() called\nlength = %zi\n", length);
+ log_debug_msg("lockdownd_securead() called\nlength = %zi\n", length);
// Buffering hack! Throw what we've got in our "buffer" into the stream first, then get more.
if (control->gtls_buffer_hack_len > 0) {
if (length > control->gtls_buffer_hack_len) { // If it's asking for more than we got
@@ -849,8 +813,7 @@ ssize_t lockdownd_securead(gnutls_transport_ptr_t transport, char *buffer, size_
memcpy(buffer, control->gtls_buffer_hack, control->gtls_buffer_hack_len); // Fill their buffer partially
free(control->gtls_buffer_hack); // free our memory, it's not chained anymore
control->gtls_buffer_hack_len = 0; // we don't have a hack buffer anymore
- if (debug)
- printf("Did a partial fill to help quench thirst for data\n");
+ log_debug_msg("Did a partial fill to help quench thirst for data\n");
} else if (length < control->gtls_buffer_hack_len) { // If it's asking for less...
control->gtls_buffer_hack_len -= length; // subtract what they're asking for
memcpy(buffer, control->gtls_buffer_hack, length); // fill their buffer
@@ -859,37 +822,33 @@ ssize_t lockdownd_securead(gnutls_transport_ptr_t transport, char *buffer, size_
free(control->gtls_buffer_hack); // Free the old one
control->gtls_buffer_hack = hackhackhack; // And make it the new one.
hackhackhack = NULL;
- if (debug)
- printf("Quenched the thirst for data; new hack length is %i\n", control->gtls_buffer_hack_len);
+ log_debug_msg("Quenched the thirst for data; new hack length is %i\n", control->gtls_buffer_hack_len);
return length; // hand it over.
} else { // length == hack length
memcpy(buffer, control->gtls_buffer_hack, length); // copy our buffer into theirs
free(control->gtls_buffer_hack); // free our "obligation"
control->gtls_buffer_hack_len = 0; // free our "obligation"
- if (debug)
- printf("Satiated the thirst for data; now we have to eventually receive again.\n");
+ log_debug_msg("Satiated the thirst for data; now we have to eventually receive again.\n");
return length; // hand it over
}
}
// End buffering hack!
char *recv_buffer = (char *) malloc(sizeof(char) * (length * 1000)); // ensuring nothing stupid happens
- if (debug)
- printf("pre-read\nclient wants %zi bytes\n", length);
+ log_debug_msg("pre-read\nclient wants %zi bytes\n", length);
iphone_mux_recv(control->connection, recv_buffer, (length * 1000), &bytes);
- if (debug)
- printf("post-read\nwe got %i bytes\n", bytes);
- if (debug && bytes < 0) {
- printf("lockdownd_securead(): uh oh\n");
- printf("I believe what we have here is a failure to communicate... libusb says %s but strerror says %s\n",
- usb_strerror(), strerror(errno));
+ log_debug_msg("post-read\nwe got %i bytes\n", bytes);
+ if (bytes < 0) {
+ log_debug_msg("lockdownd_securead(): uh oh\n");
+ log_debug_msg
+ ("I believe what we have here is a failure to communicate... libusb says %s but strerror says %s\n",
+ usb_strerror(), strerror(errno));
return bytes + 28; // an errno
}
if (bytes >= length) {
if (bytes > length) {
- if (debug)
- printf
- ("lockdownd_securead: Client deliberately read less data than was there; resorting to GnuTLS buffering hack.\n");
+ log_debug_msg
+ ("lockdownd_securead: Client deliberately read less data than was there; resorting to GnuTLS buffering hack.\n");
if (!control->gtls_buffer_hack_len) { // if there's no hack buffer yet
//control->gtls_buffer_hack = strndup(recv_buffer+length, bytes-length); // strndup is NOT a good solution!
control->gtls_buffer_hack_len += bytes - length;
@@ -905,12 +864,10 @@ ssize_t lockdownd_securead(gnutls_transport_ptr_t transport, char *buffer, size_
memcpy(buffer + pos_start_fill, recv_buffer, length);
free(recv_buffer);
if (bytes == length) {
- if (debug)
- printf("Returning how much we received.\n");
+ log_debug_msg("Returning how much we received.\n");
return bytes;
} else {
- if (debug)
- printf("Returning what they want to hear.\nHack length: %i\n", control->gtls_buffer_hack_len);
+ log_debug_msg("Returning what they want to hear.\nHack length: %i\n", control->gtls_buffer_hack_len);
return length;
}
}
@@ -988,13 +945,11 @@ iphone_error_t iphone_lckd_start_service(iphone_lckd_client_t client, const char
dictionary = read_dict_element_strings(dict);
for (i = 0; dictionary[i]; i += 2) {
- if (debug)
- printf("lockdownd_start_service() dictionary %s: %s\n", dictionary[i], dictionary[i + 1]);
+ log_debug_msg("lockdownd_start_service() dictionary %s: %s\n", dictionary[i], dictionary[i + 1]);
if (!xmlStrcmp(dictionary[i], "Port")) {
port_loc = atoi(dictionary[i + 1]);
- if (debug)
- printf("lockdownd_start_service() atoi'd port: %i\n", port);
+ log_debug_msg("lockdownd_start_service() atoi'd port: %i\n", port);
}
if (!xmlStrcmp(dictionary[i], "Result")) {
@@ -1004,11 +959,9 @@ iphone_error_t iphone_lckd_start_service(iphone_lckd_client_t client, const char
}
}
- if (debug) {
- printf("lockdownd_start_service(): DATA RECEIVED:\n\n");
- fwrite(XML_query, 1, bytes, stdout);
- printf("end data received by lockdownd_start_service()\n");
- }
+ log_debug_msg("lockdownd_start_service(): DATA RECEIVED:\n\n");
+ log_debug_msg(XML_query);
+ log_debug_msg("end data received by lockdownd_start_service()\n");
free(XML_query);
xmlFreeDoc(plist);