diff options
Diffstat (limited to 'code/util')
| -rw-r--r-- | code/util/Makefile | 21 | ||||
| -rw-r--r-- | code/util/mknode.c | 63 | ||||
| -rw-r--r-- | code/util/util.c | 91 | ||||
| -rw-r--r-- | code/util/util.h | 5 |
4 files changed, 180 insertions, 0 deletions
diff --git a/code/util/Makefile b/code/util/Makefile new file mode 100644 index 0000000..c87a1dd --- /dev/null +++ b/code/util/Makefile @@ -0,0 +1,21 @@ +CFLAGS = -I../core -pthread -O3 $(PIC) +LDFLAGS=-lm -pthread + +obj=util.o +dep=../core/libecpcore.a ../core/crypto/libecpcr.a ../core/htable/libecpht.a ../core/posix/libecptr.a ../core/posix/libecptm.a ./libecputil.a + + +%.o: %.c %.h + $(CC) $(CFLAGS) -c $< + +all: libecputil.a mknode + +libecputil.a: $(obj) + $(AR) rcs libecputil.a $(obj) + +mknode: mknode.o libecputil.a + $(CC) -o $@ $(LDFLAGS) $< $(dep) + +clean: + rm -f *.o *.a + rm -f mknode diff --git a/code/util/mknode.c b/code/util/mknode.c new file mode 100644 index 0000000..0c389dc --- /dev/null +++ b/code/util/mknode.c @@ -0,0 +1,63 @@ +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdio.h> + +#include <core.h> +#include "util.h" + +#define FN_LEN 256 + +static char fn_key[FN_LEN]; +static char fn_node[FN_LEN]; + +static int v_rng(void *buf, size_t bufsize) { + int fd; + + if((fd = open("/dev/urandom", O_RDONLY)) < 0) return -1; + size_t nb = read(fd, buf, bufsize); + close(fd); + if (nb != bufsize) return -1; + return 0; +} + +static void usage(char *arg) { + fprintf(stderr, "Usage: %s <name> [address]\n", arg); + exit(1); +} + +int main(int argc, char *argv[]) { + int rv; + ECPContext ctx; + ECPDHKey key; + ECPNode node; + + if ((argc < 2) || (argc > 3)) usage(argv[0]); + + if (strlen(argv[1]) > FN_LEN - 6) usage(argv[0]); + strcpy(fn_node, argv[1]); + strcpy(fn_key, argv[1]); + strcat(fn_key, ".priv"); + strcat(fn_node, ".pub"); + + rv = ecp_ctx_create(&ctx); + if (rv) goto err; + ctx.rng = v_rng; + + rv = ecp_dhkey_generate(&ctx, &key); + if (rv) goto err; + + rv = ecp_node_init(&ctx, &node, &key.public, (argc == 3) ? argv[2] : NULL); + if (rv) goto err; + + rv = ecp_util_key_save(&ctx, &key, fn_key); + if (rv) goto err; + + rv = ecp_util_node_save(&ctx, &node, fn_node); + if (rv) goto err; + + return 0; + err: + printf("ERR:%d\n", rv); + return 1; +}
\ No newline at end of file diff --git a/code/util/util.c b/code/util/util.c new file mode 100644 index 0000000..e225ea1 --- /dev/null +++ b/code/util/util.c @@ -0,0 +1,91 @@ +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> + +#include <core.h> +#include "util.h" + +int ecp_util_key_save(ECPContext *ctx, ECPDHKey *key, char *filename) { + int fd; + ssize_t rv; + + if((fd = open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)) < 0) return ECP_ERR; + rv = write(fd, ctx->cr.dh_pub_get_buf(&key->public), ECP_ECDH_SIZE_KEY); + if (rv != ECP_ECDH_SIZE_KEY) { + close(fd); + return ECP_ERR; + } + rv = write(fd, &key->private, sizeof(key->private)); + if (rv != sizeof(key->private)) { + close(fd); + return ECP_ERR; + } + close(fd); + return ECP_OK; +} + +int ecp_util_key_load(ECPContext *ctx, ECPDHKey *key, char *filename) { + int fd; + ssize_t rv; + unsigned char buf[ECP_ECDH_SIZE_KEY]; + + if((fd = open(filename, O_RDONLY)) < 0) return ECP_ERR; + rv = read(fd, buf, ECP_ECDH_SIZE_KEY); + if (rv != ECP_ECDH_SIZE_KEY) { + close(fd); + return ECP_ERR; + } + rv = read(fd, &key->private, sizeof(key->private)); + if (rv != sizeof(key->private)) { + close(fd); + return ECP_ERR; + } + close(fd); + + ctx->cr.dh_pub_from_buf(&key->public, buf); + + key->valid = 1; + return ECP_OK; +} + +int ecp_util_node_save(ECPContext *ctx, ECPNode *node, char *filename) { + int fd; + ssize_t rv; + + if((fd = open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)) < 0) return ECP_ERR; + rv = write(fd, ctx->cr.dh_pub_get_buf(&node->public), ECP_ECDH_SIZE_KEY); + if (rv != ECP_ECDH_SIZE_KEY) { + close(fd); + return ECP_ERR; + } + rv = write(fd, &node->addr, sizeof(node->addr)); + if (rv != sizeof(node->addr)) { + close(fd); + return ECP_ERR; + } + close(fd); + return ECP_OK; +} + +int ecp_util_node_load(ECPContext *ctx, ECPNode *node, char *filename) { + int fd; + ssize_t rv; + unsigned char buf[ECP_ECDH_SIZE_KEY]; + + if((fd = open(filename, O_RDONLY)) < 0) return ECP_ERR; + rv = read(fd, buf, ECP_ECDH_SIZE_KEY); + if (rv != ECP_ECDH_SIZE_KEY) { + close(fd); + return ECP_ERR; + } + rv = read(fd, &node->addr, sizeof(node->addr)); + if (rv != sizeof(node->addr)) { + close(fd); + return ECP_ERR; + } + close(fd); + + ctx->cr.dh_pub_from_buf(&node->public, buf); + + return ECP_OK; +}
\ No newline at end of file diff --git a/code/util/util.h b/code/util/util.h new file mode 100644 index 0000000..3d07588 --- /dev/null +++ b/code/util/util.h @@ -0,0 +1,5 @@ +int ecp_util_key_save(ECPContext *ctx, ECPDHKey *key, char *filename); +int ecp_util_key_load(ECPContext *ctx, ECPDHKey *key, char *filename); + +int ecp_util_node_save(ECPContext *ctx, ECPNode *node, char *filename); +int ecp_util_node_load(ECPContext *ctx, ECPNode *node, char *filename);
\ No newline at end of file |