Start to add in tanks

.gitignore

@@ -4,3 +4,6 @@
 *.o
 bin/
 build/
+cache/
+target/
+

Makefile

@@ -1,6 +1,22 @@
+# Scratch directory for building extrenal sources
 BUILD = build
+
+# Root to install things before they're packaged
+TARGET = target
+
+# Downloaded source files go here
+CACHE = cache
+
+# The end result
 BIN = bin
 
+
 all: packages
 
+clean: packages-clean
+	rm -rf $(BUILD) $(TARGET) $(BIN)
+
+scrub: clean
+	rm -rf $(CACHE)
+
 include packages/packages.mk

packages/logger/logger.mk

@@ -1,4 +1,4 @@
-LOGGER_PKGDIR = $(BUILD)/logger
+LOGGER_PKGDIR = $(TARGET)/logger
 
 logger-install: logger-build
 	mkdir -p $(LOGGER_PKGDIR)

packages/mcp/mcp.mk

@@ -1,4 +1,4 @@
-MCP_PKGDIR = $(BUILD)/mcp
+MCP_PKGDIR = $(TARGET)/mcp
 
 mcp-install: mcp-build
 	mkdir -p $(MCP_PKGDIR)

packages/mcp/service/tokend/run

@@ -2,6 +2,14 @@
 
 exec 2>&1
 
+DB=/var/lib/ctf/tokens.db
+
+if [ ! -f $DB ]; do
+    # Append any package-provided tokens
+    cat /opt/*/tokens >$DB 2>/dev/null
+    chown ctf $DB
+fi
+
 for fn in /var/lib/ctf/tokens.db /var/lib/ctf/claim.db; do
     touch $fn
     chown ctf $fn

packages/mcp/src/Makefile

@@ -1,7 +1,7 @@
 CFLAGS = -Wall -Werror
 TARGETS = in.tokend tokencli claim.cgi
 TARGETS += puzzler.cgi puzzles.cgi
-TARGETS += pointscli 
+TARGETS += pointscli mktoken
 
 all: build
 
@@ -10,6 +10,7 @@ build: $(TARGETS)
 in.tokend: in.tokend.o arc4.o common.o
 tokencli: tokencli.o arc4.o
 pointscli: pointscli.o common.o
+mktoken: mktoken.o common.o
 
 puzzles.cgi: puzzles.cgi.o common.o
 claim.cgi: claim.cgi.o common.o

packages/mcp/src/common.c

@@ -524,3 +524,56 @@ award_and_log_uniquely(char const *team,
   }
   close(fd);
 }
+
+
+/** Compute bubble babble for input buffer.
+ *
+ * The generated output will be of length 6*((inlen/2)+1), including the
+ * trailing NULL.
+ *
+ * Test vectors:
+ *     `' (empty string) `xexax'
+ *     `1234567890'      `xesef-disof-gytuf-katof-movif-baxux'
+ *     `Pineapple'       `xigak-nyryk-humil-bosek-sonax'
+ */
+static char const consonants[] = "bcdfghklmnprstvz";
+static char const vowels[]     = "aeiouy";
+
+void
+bubblebabble(unsigned char *out,
+             unsigned char const *in,
+             const size_t inlen)
+{
+  size_t pos  = 0;
+  int    seed = 1;
+  size_t i    = 0;
+
+  out[pos++] = 'x';
+  while (1) {
+    unsigned char c;
+
+    if (i == inlen) {
+      out[pos++] = vowels[seed % 6];
+      out[pos++] = 'x';
+      out[pos++] = vowels[seed / 6];
+      break;
+    }
+
+    c = in[i++];
+    out[pos++] = vowels[(((c >> 6) & 3) + seed) % 6];
+    out[pos++] = consonants[(c >> 2) & 15];
+    out[pos++] = vowels[((c & 3) + (seed / 6)) % 6];
+    if (i == inlen) {
+      break;
+    }
+    seed = ((seed * 5) + (c * 7) + in[i]) % 36;
+
+    c = in[i++];
+    out[pos++] = consonants[(c >> 4) & 15];
+    out[pos++] = '-';
+    out[pos++] = consonants[c & 15];
+  }
+
+  out[pos++] = 'x';
+  out[pos] = '\0';
+}

packages/mcp/src/common.h

@@ -7,7 +7,9 @@
 #define TEAM_MAX 40
 #define CAT_MAX 40
 #define TOKEN_MAX 80
+#define itokenlen 5
 
+#define bubblebabble_len(n) (6*(((n)/2)+1))
 
 int cgi_init(char *global_argv[]);
 size_t cgi_item(char *str, size_t maxlen);
@@ -31,5 +33,8 @@ void award_and_log_uniquely(char const *team,
                             long points,
                             char const *logfile,
                             char const *line);
+void bubblebabble(unsigned char *out,
+                  unsigned char const *in,
+                  const size_t inlen);
 
 #endif

packages/mcp/src/in.tokend.c

@@ -13,62 +13,6 @@
 #include "common.h"
 #include "arc4.h"
 
-#define itokenlen 5
-
-char const consonants[] = "bcdfghklmnprstvz";
-char const vowels[]     = "aeiouy";
-
-#define bubblebabble_len(n) (6*(((n)/2)+1))
-
-/** Compute bubble babble for input buffer.
- *
- * The generated output will be of length 6*((inlen/2)+1), including the
- * trailing NULL.
- *
- * Test vectors:
- *     `' (empty string) `xexax'
- *     `1234567890'      `xesef-disof-gytuf-katof-movif-baxux'
- *     `Pineapple'       `xigak-nyryk-humil-bosek-sonax'
- */
-void
-bubblebabble(unsigned char *out,
-             unsigned char const *in,
-             const size_t inlen)
-{
-  size_t pos  = 0;
-  int    seed = 1;
-  size_t i    = 0;
-
-  out[pos++] = 'x';
-  while (1) {
-    unsigned char c;
-
-    if (i == inlen) {
-      out[pos++] = vowels[seed % 6];
-      out[pos++] = 'x';
-      out[pos++] = vowels[seed / 6];
-      break;
-    }
-
-    c = in[i++];
-    out[pos++] = vowels[(((c >> 6) & 3) + seed) % 6];
-    out[pos++] = consonants[(c >> 2) & 15];
-    out[pos++] = vowels[((c & 3) + (seed / 6)) % 6];
-    if (i == inlen) {
-      break;
-    }
-    seed = ((seed * 5) + (c * 7) + in[i]) % 36;
-
-    c = in[i++];
-    out[pos++] = consonants[(c >> 4) & 15];
-    out[pos++] = '-';
-    out[pos++] = consonants[c & 15];
-  }
-
-  out[pos++] = 'x';
-  out[pos] = '\0';
-}
-
 int
 main(int argc, char *argv[])
 {

packages/mcp/src/mktoken.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <sysexits.h>
+#include "common.h"
+
+int
+main(int argc, char *argv[])
+{
+  if (2 != argc) {
+    fprintf(stderr, "Usage: %s CATEGORY\n", argv[0]);
+    return EX_USAGE;
+  }
+
+  /* Create the token. */
+  {
+    unsigned char crap[itokenlen];
+    unsigned char digest[bubblebabble_len(itokenlen)];
+
+    urandom((char *)crap, sizeof(crap));
+
+    /* Digest some random junk. */
+    bubblebabble(digest, (unsigned char *)&crap, itokenlen);
+
+    /* Append digest to category name. */
+    printf("%s:%s\n", argv[1], digest);
+  }
+
+  return 0;
+}

packages/octopus/octopus.mk

@@ -1,4 +1,4 @@
-OCTOPUS_PKGDIR = $(BUILD)/octopus
+OCTOPUS_PKGDIR = $(TARGET)/octopus
 
 octopus-install: octopus-build
 	mkdir -p $(OCTOPUS_PKGDIR)/bin/

packages/packages.mk

@@ -9,12 +9,12 @@ define STANDARD_PUZZLE
 t=$(strip $1)
 $t-install: $t-stdinstall
 $t-stdinstall:
-	mkdir -p $(BUILD)/$t
-	./mkpuzzles packages/$t $(BUILD)/$t
+	mkdir -p $(TARGET)/$t
+	./mkpuzzles packages/$t $(TARGET)/$t
 
 $t-clean: $t-stdclean
 $t-stdclean:
-	rm -rf $(BUILD)/$t $(BIN)/$t.pkg
+	rm -rf $(TARGET)/$t $(BIN)/$t.pkg
 
 PACKAGES += $t
 endef
@@ -26,10 +26,10 @@ $(foreach p, $(PACKAGES), $(eval $p: $(BIN)/$p.pkg))
 
 packages: $(patsubst %, $(BIN)/%.pkg, $(PACKAGES))
 
-install: $(addsuffix -install, $(PACKAGES))
+packages-install: $(addsuffix -install, $(PACKAGES))
 
-clean: $(addsuffix -clean, $(PACKAGES))
-	rm -rf $(BUILD) $(BIN)
+packages-clean: $(addsuffix -clean, $(PACKAGES))
+	rm -rf $(TARGET) $(BIN)
 
 $(foreach p, $(PACKAGES), $(eval $p-clean: $p-pkgclean))
 %-pkgclean:
@@ -37,4 +37,4 @@ $(foreach p, $(PACKAGES), $(eval $p-clean: $p-pkgclean))
 
 $(BIN)/%.pkg: %-install
 	@ mkdir -p $(@D)
-	mksquashfs $(BUILD)/$* $@ -all-root -noappend -no-progress
+	mksquashfs $(TARGET)/$* $@ -all-root -noappend -no-progress

packages/printf/printf.mk

@@ -1,4 +1,4 @@
-PRINTF_PKGDIR = $(BUILD)/printf
+PRINTF_PKGDIR = $(TARGET)/printf
 
 printf-install: printf-build
 	mkdir -p $(PRINTF_PKGDIR)

packages/pwnables/pwnables.mk

@@ -1,4 +1,4 @@
-PWNABLES_PKGDIR = $(BUILD)/pwnables
+PWNABLES_PKGDIR = $(TARGET)/pwnables
 
 pwnables-install: pwnables-build
 	mkdir -p $(PWNABLES_PKGDIR)

packages/tanks/tanks.mk

@@ -0,0 +1,21 @@
+TANKS_PKGDIR = $(TARGET)/tanks
+TANKS_BUILDDIR = $(BUILD)/tanks
+TANKS_TAR = $(CACHE)/tanks.tar.gz
+TANKS_URL = "http://woozle.org/~neale/gitweb.cgi?p=ctanks;a=snapshot;h=master;sf=tgz"
+
+$(TANKS_TAR):
+	@ mkdir -p $(@D)
+	wget -O $@ $(TANKS_URL)
+
+tanks-source: $(TANKS_BUILDDIR)/ctanks
+$(TANKS_BUILDDIR)/ctanks: $(TANKS_TAR)
+	mkdir -p $(TANKS_BUILDDIR)
+	zcat $(TANKS_TAR) | (cd $(TANKS_BUILDDIR) && tar xf -)
+
+tanks-build: tanks-source
+	$(MAKE) -C $(TANKS_BUILDDIR)/ctanks
+
+tanks-install: tanks-build
+
+tanks-clean:
+	rm -f $(TANKS_BUILDDIR)

packages/tokens/tokens.mk

@@ -1,4 +1,4 @@
-TOKENS_PKGDIR = $(BUILD)/tokens
+TOKENS_PKGDIR = $(TARGET)/tokens
 
 tokens-install: tokens-build
 	mkdir -p $(TOKENS_PKGDIR)/bin/