int
add_signature(unsigned char *out, char *private_key_path,
unsigned char *file, unsigned int fsize)
{
int len;
unsigned char sig[2048];
unsigned int sig_len;
len = ccnl_ccnb_mkHeader(out, CCN_DTAG_SIGNATURE, CCN_TT_DTAG);
len += ccnl_ccnb_mkStrBlob(out + len, CCN_DTAG_NAME, CCN_TT_DTAG, "SHA256");
len += ccnl_ccnb_mkStrBlob(out + len, CCN_DTAG_WITNESS, CCN_TT_DTAG, "");
if(!sign(private_key_path, (unsigned char*)file, fsize, (unsigned char*)sig, &sig_len)) return 0;
//printf("SIGLEN: %d\n",sig_len);
sig[sig_len]=0;
//add signaturebits bits...
len += ccnl_ccnb_mkHeader(out + len, CCN_DTAG_SIGNATUREBITS, CCN_TT_DTAG);
len += ccnl_ccnb_addBlob(out + len, (char*)sig, sig_len);
out[len++] = 0; // end signaturebits
out[len++] = 0; // end signature
/*char *publickey = "/home/blacksheeep/.ssh/publickey.pem";
int verified = verify(publickey, file, fsize, sig, sig_len);
printf("Verified: %d\n", verified);*/
return len;
}
int
mkEchoserverRequest(unsigned char *out, char *path, int suite,
char *private_key_path)
{
int len = 0, len1 = 0, len2 = 0, len3 = 0;
unsigned char out1[CCNL_MAX_PACKET_SIZE];
unsigned char contentobj[2000];
unsigned char fwdentry[2000];
char suite_s[1];
char *cp;
DEBUGMSG(DEBUG, "mkEchoserverRequest uri=%s suite=%d\n", path, suite);
len = ccnl_ccnb_mkHeader(out, CCN_DTAG_INTEREST, CCN_TT_DTAG); // interest
len += ccnl_ccnb_mkHeader(out+len, CCN_DTAG_NAME, CCN_TT_DTAG); // name
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "ccnx");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "echoserver");
// prepare FWDENTRY
len3 = ccnl_ccnb_mkHeader(fwdentry, CCN_DTAG_FWDINGENTRY, CCN_TT_DTAG);
len3 += ccnl_ccnb_mkStrBlob(fwdentry+len3, CCN_DTAG_ACTION, CCN_TT_DTAG, "echoserver");
len3 += ccnl_ccnb_mkHeader(fwdentry+len3, CCN_DTAG_NAME, CCN_TT_DTAG); // prefix
cp = strtok(path, "/");
while (cp) {
unsigned short cmplen = strlen(cp);
#ifdef USE_SUITE_CCNTLV
if (suite == CCNL_SUITE_CCNTLV) {
char* oldcp = cp;
cp = malloc( (cmplen + 4) * (sizeof(char)) );
cp[0] = CCNX_TLV_N_NameSegment >> 8;
cp[1] = CCNX_TLV_N_NameSegment;
cp[2] = cmplen >> 8;
cp[3] = cmplen;
memcpy(cp + 4, oldcp, cmplen);
cmplen += 4;
}
#endif
#ifdef USE_SUITE_CISTLV
if (suite == CCNL_SUITE_CISTLV) {
char* oldcp = cp;
cp = malloc( (cmplen + 4) * (sizeof(char)) );
cp[0] = CISCO_TLV_NameComponent >> 8;
cp[1] = CISCO_TLV_NameComponent;
cp[2] = cmplen >> 8;
cp[3] = cmplen;
memcpy(cp + 4, oldcp, cmplen);
cmplen += 4;
}
static int
ccnl_crypto_create_ccnl_sign_verify_msg(char *typ, int txid, char *content, int content_len,
char *sig, int sig_len, char *msg, char *callback)
{
int len = 0, len2 = 0, len3 = 0;
char *component_buf, *contentobj_buf;
char h[100];
component_buf = ccnl_malloc(sizeof(char)*(content_len)+2000);
contentobj_buf = ccnl_malloc(sizeof(char)*(content_len)+1000);
len = ccnl_ccnb_mkHeader(msg, CCN_DTAG_INTEREST, CCN_TT_DTAG); // interest
len += ccnl_ccnb_mkHeader(msg+len, CCN_DTAG_NAME, CCN_TT_DTAG); // name
len += ccnl_ccnb_mkStrBlob(msg+len, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "ccnx");
len += ccnl_ccnb_mkStrBlob(msg+len, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "crypto");
// prepare FACEINSTANCE
len3 += ccnl_ccnb_mkStrBlob(component_buf+len3, CCNL_DTAG_CALLBACK, CCN_TT_DTAG, callback);
len3 += ccnl_ccnb_mkStrBlob(component_buf+len3, CCN_DTAG_TYPE, CCN_TT_DTAG, typ);
memset(h, 0, 100);
sprintf(h, "%d", txid);
len3 += ccnl_ccnb_mkStrBlob(component_buf+len3, CCN_DTAG_SEQNO, CCN_TT_DTAG, h);
if(!strcmp(typ, "verify"))
len3 += ccnl_ccnb_mkBlob(component_buf+len3, CCN_DTAG_SIGNATURE, CCN_TT_DTAG, // content
(char*) sig, sig_len);
len3 += ccnl_ccnb_mkBlob(component_buf+len3, CCN_DTAG_CONTENTDIGEST, CCN_TT_DTAG, // content
(char*) content, content_len);
// prepare CONTENTOBJ with CONTENT
len2 = ccnl_ccnb_mkHeader(contentobj_buf, CCN_DTAG_CONTENTOBJ, CCN_TT_DTAG); // contentobj
len2 += ccnl_ccnb_mkBlob(contentobj_buf+len2, CCN_DTAG_CONTENT, CCN_TT_DTAG, // content
(char*) component_buf, len3);
contentobj_buf[len2++] = 0; // end-of-contentobj
// add CONTENTOBJ as the final name component
len += ccnl_ccnb_mkBlob(msg+len, CCN_DTAG_COMPONENT, CCN_TT_DTAG, // comp
(char*) contentobj_buf, len2);
msg[len++] = 0; // end-of-name
msg[len++] = 0; // end-o
ccnl_free(component_buf);
ccnl_free(contentobj_buf);
return len;
}
static int
ccnl_crypto_add_signature(unsigned char *out, char *sig, int siglen)
{
int len;
len = ccnl_ccnb_mkHeader(out, CCN_DTAG_SIGNATURE, CCN_TT_DTAG);
len += ccnl_ccnb_mkStrBlob(out + len, CCN_DTAG_NAME, CCN_TT_DTAG, "SHA256");
len += ccnl_ccnb_mkStrBlob(out + len, CCN_DTAG_WITNESS, CCN_TT_DTAG, "");
//add signaturebits bits...
len += ccnl_ccnb_mkHeader(out + len, CCN_DTAG_SIGNATUREBITS, CCN_TT_DTAG);
len += ccnl_ccnb_addBlob(out + len, sig, siglen);
out[len++] = 0; // end signaturebits
out[len++] = 0; // end signature
return len;
}
int
mkDebugRequest(unsigned char *out, char *dbg, char *private_key_path)
{
int len = 0, len1 = 0, len2 = 0, len3 = 0;
unsigned char out1[CCNL_MAX_PACKET_SIZE];
unsigned char contentobj[2000];
unsigned char stmt[1000];
len = ccnl_ccnb_mkHeader(out, CCN_DTAG_INTEREST, CCN_TT_DTAG); // interest
len += ccnl_ccnb_mkHeader(out+len, CCN_DTAG_NAME, CCN_TT_DTAG); // name
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "ccnx");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "debug");
// prepare debug statement
len3 = ccnl_ccnb_mkHeader(stmt, CCNL_DTAG_DEBUGREQUEST, CCN_TT_DTAG);
len3 += ccnl_ccnb_mkStrBlob(stmt+len3, CCN_DTAG_ACTION, CCN_TT_DTAG, "debug");
len3 += ccnl_ccnb_mkStrBlob(stmt+len3, CCNL_DTAG_DEBUGACTION, CCN_TT_DTAG, dbg);
stmt[len3++] = 0; // end-of-debugstmt
// prepare CONTENTOBJ with CONTENT
len2 = ccnl_ccnb_mkHeader(contentobj, CCN_DTAG_CONTENTOBJ, CCN_TT_DTAG); // contentobj
len2 += ccnl_ccnb_mkBlob(contentobj+len2, CCN_DTAG_CONTENT, CCN_TT_DTAG, // content
(char*) stmt, len3);
contentobj[len2++] = 0; // end-of-contentobj
// add CONTENTOBJ as the final name component
len1 += ccnl_ccnb_mkBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, // comp
(char*) contentobj, len2);
#ifdef USE_SIGNATURES
if(private_key_path) len += add_signature(out+len, private_key_path, out1, len1);
#endif /*USE_SIGNATURES*/
memcpy(out+len, out1, len1);
len += len1;
out[len++] = 0; // end-of-name
out[len++] = 0; // end-of-interest
// ccnl_prefix_free(p);
return len;
}
int
mkNewEthDevRequest(unsigned char *out, char *devname, char *ethtype,
char *frag, char *flags, char *private_key_path)
{
int len = 0, len1 = 0, len2 = 0, len3 = 0;
unsigned char out1[CCNL_MAX_PACKET_SIZE];
unsigned char contentobj[2000];
unsigned char faceinst[2000];
len = ccnl_ccnb_mkHeader(out, CCN_DTAG_INTEREST, CCN_TT_DTAG); // interest
len += ccnl_ccnb_mkHeader(out+len, CCN_DTAG_NAME, CCN_TT_DTAG); // name
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "ccnx");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "");
len1 += ccnl_ccnb_mkStrBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, "newdev");
// prepare DEVINSTANCE
len3 = ccnl_ccnb_mkHeader(faceinst, CCNL_DTAG_DEVINSTANCE, CCN_TT_DTAG);
len3 += ccnl_ccnb_mkStrBlob(faceinst+len3, CCN_DTAG_ACTION, CCN_TT_DTAG, "newdev");
if (devname)
len3 += ccnl_ccnb_mkStrBlob(faceinst+len3, CCNL_DTAG_DEVNAME, CCN_TT_DTAG,
devname);
if (ethtype)
len3 += ccnl_ccnb_mkStrBlob(faceinst+len3, CCN_DTAG_PORT, CCN_TT_DTAG, ethtype);
if (frag)
len3 += ccnl_ccnb_mkStrBlob(faceinst+len3, CCNL_DTAG_FRAG, CCN_TT_DTAG, frag);
if (flags)
len3 += ccnl_ccnb_mkStrBlob(faceinst+len3, CCNL_DTAG_DEVFLAGS, CCN_TT_DTAG, flags);
faceinst[len3++] = 0; // end-of-faceinst
// prepare CONTENTOBJ with CONTENT
len2 = ccnl_ccnb_mkHeader(contentobj, CCN_DTAG_CONTENTOBJ, CCN_TT_DTAG); // contentobj
len2 += ccnl_ccnb_mkBlob(contentobj+len2, CCN_DTAG_CONTENT, CCN_TT_DTAG, // content
(char*) faceinst, len3);
contentobj[len2++] = 0; // end-of-contentobj
// add CONTENTOBJ as the final name component
len1 += ccnl_ccnb_mkBlob(out1+len1, CCN_DTAG_COMPONENT, CCN_TT_DTAG, // comp
(char*) contentobj, len2);
#ifdef USE_SIGNATURES
if(private_key_path) len += add_signature(out+len, private_key_path, out1, len1);
#endif /*USE_SIGNATURES*/
memcpy(out+len, out1, len1);
len += len1;
out[len++] = 0; // end-of-name
out[len++] = 0; // end-of-interest
return len;
}
int
add_ccnl_name(unsigned char *out, char *ccn_path)
{
char comp[256];
int len = 0, len2 = 0;
int h;
memset(comp, 0 , 256);
len += ccnl_ccnb_mkHeader(out + len, CCN_DTAG_NAME, CCN_TT_DTAG);
while( (h = split_string(ccn_path + len2, '/', comp)) )
{
len2 += h;
len += ccnl_ccnb_mkStrBlob(out + len, CCN_DTAG_COMPONENT, CCN_TT_DTAG, comp);
memset(comp, 0 , 256);
}
out[len++] = 0;
return len;
}
