static void
ccnd_stats_http_set_debug(struct ccnd_handle *h, struct face *face, int level)
{
struct ccn_charbuf *response = ccn_charbuf_create();
h->debug = 1;
ccnd_msg(h, "CCND_DEBUG=%d", level);
h->debug = level;
ccn_charbuf_putf(response, "<title>CCND_DEBUG=%d</title><tt>CCND_DEBUG=%d</tt>" CRLF, level, level);
send_http_response(h, face, "text/html", response);
ccn_charbuf_destroy(&response);
}
int
main(int argc, char **argv)
{
struct ccnd_handle *h;
if (argc > 1) {
fprintf(stderr, "%s", ccnd_usage_message);
exit(1);
}
signal(SIGPIPE, SIG_IGN);
h = ccnd_create(argv[0], stdiologger, stderr);
if (h == NULL)
exit(1);
ccnd_run(h);
ccnd_msg(h, "exiting.");
ccnd_destroy(&h);
ERR_remove_state(0);
EVP_cleanup();
exit(0);
}
/**
* Produce a ccnd debug trace entry.
* Output is produced by calling ccnd_msg.
* @param h the ccnd handle
* @param lineno caller's source line number (usually __LINE__)
* @param msg a short text tag to identify the entry
* @param face handle of associated face; may be NULL
* @param ccnb points to ccnb-encoded Interest or ContentObject
* @param ccnb_size is in bytes
*/
void
ccnd_debug_ccnb(struct ccnd_handle *h,
int lineno,
const char *msg,
struct face *face,
const unsigned char *ccnb,
size_t ccnb_size)
{
struct ccn_charbuf *c;
struct ccn_parsed_interest pi;
const unsigned char *nonce = NULL;
size_t nonce_size = 0;
size_t i;
if (h != NULL && h->debug == 0)
return;
c = ccn_charbuf_create();
ccn_charbuf_putf(c, "debug.%d %s ", lineno, msg);
if (face != NULL)
ccn_charbuf_putf(c, "%u ", face->faceid);
ccn_uri_append(c, ccnb, ccnb_size, 1);
ccn_charbuf_putf(c, " (%u bytes)", (unsigned)ccnb_size);
if (ccn_parse_interest(ccnb, ccnb_size, &pi, NULL) >= 0) {
const char *p = "";
ccn_ref_tagged_BLOB(CCN_DTAG_Nonce, ccnb,
pi.offset[CCN_PI_B_Nonce],
pi.offset[CCN_PI_E_Nonce],
&nonce,
&nonce_size);
if (nonce_size > 0) {
ccn_charbuf_putf(c, " ");
if (nonce_size == 12)
p = "CCC-P-F-T-NN";
for (i = 0; i < nonce_size; i++)
ccn_charbuf_putf(c, "%s%02X", (*p) && (*p++)=='-' ? "-" : "", nonce[i]);
}
}
ccnd_msg(h, "%s", ccn_charbuf_as_string(c));
ccn_charbuf_destroy(&c);
}
int
ccnd_stats_handle_http_connection(struct ccnd_handle *h, struct face *face)
{
struct ccn_charbuf *response = NULL;
char rbuf[16];
int i;
int nspace;
int n;
ccnd_msg(h, "========== in ccnd_stats_handle_http_connection, face = %d", face);
if (face->inbuf->length < 4)
return(-1);
if ((face->flags & CCN_FACE_NOSEND) != 0) {
ccnd_destroy_face(h, face->faceid);
return(-1);
}
ccnd_msg(h, "============ before n = sizeof(rbuf) - 1;");
n = sizeof(rbuf) - 1;
if (face->inbuf->length < n)
n = face->inbuf->length;
for (i = 0, nspace = 0; i < n && nspace < 2; i++) {
rbuf[i] = face->inbuf->buf[i];
if (rbuf[i] == ' ')
nspace++;
}
ccnd_msg(h, "============= before rbuf[i] = 0;");
rbuf[i] = 0;
if (nspace < 2 && i < sizeof(rbuf) - 1)
return(-1);
if (0 == strcmp(rbuf, "GET / ") ||
0 == strcmp(rbuf, "GET /? ")) {
ccnd_msg(h, "============== in 1 if");
response = collect_stats_html(h);
ccnd_msg(h, "============== before send_http_response");
send_http_response(h, face, "text/html", response);
}
else if (0 == strcmp(rbuf, "GET /?l=none ")) {
ccnd_msg(h, "============== in 2 else if");
ccnd_stats_http_set_debug(h, face, 0);
}
else if (0 == strcmp(rbuf, "GET /?l=low ")) {
ccnd_msg(h, "============= in 3 else if");
ccnd_stats_http_set_debug(h, face, 1);
}
else if (0 == strcmp(rbuf, "GET /?l=co ")) {
ccnd_msg(h, "============= in 4 else if");
ccnd_stats_http_set_debug(h, face, 4);
}
else if (0 == strcmp(rbuf, "GET /?l=med ")) {
ccnd_msg(h, "============= in 5 else if");
ccnd_stats_http_set_debug(h, face, 71);
}
else if (0 == strcmp(rbuf, "GET /?l=high ")) {
ccnd_msg(h, "============= in 6 else if");
ccnd_stats_http_set_debug(h, face, -1);
}
else if (0 == strcmp(rbuf, "GET /?f=xml ")) {
ccnd_msg(h, "============= in 7 else if");
response = collect_stats_xml(h);
send_http_response(h, face, "text/xml", response);
}
else if (0 == strcmp(rbuf, "GET ")){
ccnd_msg(h, "============= in 8 else if");
ccnd_send(h, face, resp404, strlen(resp404));
}
else{
ccnd_msg(h, "============= in 9 else");
ccnd_send(h, face, resp405, strlen(resp405));
}
face->flags |= (CCN_FACE_NOSEND | CCN_FACE_CLOSING);
ccnd_msg(h, "=========== before ccn_charbuf_destroy(&response);");
ccn_charbuf_destroy(&response);
return(0);
}
static int
ccnd_collect_stats(struct ccnd_handle *h, struct ccnd_stats *ans)
{
struct hashtb_enumerator ee;
struct hashtb_enumerator *e = ⅇ
long sum;
unsigned i;
for (sum = 0, hashtb_start(h->nameprefix_tab, e);
e->data != NULL; hashtb_next(e)) {
struct nameprefix_entry *npe = e->data;
struct ielinks *head = &npe->ie_head;
struct ielinks *ll;
ccnd_msg(h, "================= before inner for: head = %d, npt = %d, head->next = %d", head, npe, head->next);
for (ll = head->next; ll != head; ll = ll->next) {
//Shen Li: as ll is the first element in interest_entry, so &ll == &ie
struct interest_entry *ie = (struct interest_entry *)ll;
struct pit_face_item *p;
ccnd_msg(h, "=============== before inner inner for: ie->pfl = %d", ie->pfl);
for (p = ie->pfl; p != NULL; p = p->next){
ccnd_msg(h, "============ p = %d", p);
ccnd_msg(h, "============ ie->interest_msg = %d, ie->size = %d", ie->interest_msg, ie->size);
print_msg(ie->interest_msg, ie->size, 200);
ccnd_msg(h, "========== p->pfi_flags = %d, p->faceid = %d, p->next = %d", p->pfi_flags, p->faceid, p->next);
if ((p->pfi_flags & CCND_PFI_PENDING) != 0){
ccnd_msg(h, "============= in first if");
if (ccnd_face_from_faceid(h, p->faceid) != NULL){
ccnd_msg(h, "=============== in second if");
sum += 1;
}
}
ccnd_msg(h, "========== p->pfi_flags, p->faceid, p->next", p->pfi_flags, p->faceid, p->next);
}
ccnd_msg(h, "=============== after inner inner for: ie->pfl = %d", ie->pfl);
}
ccnd_msg(h, "================= after inner for: head = %d, npt = %d, head->next = %d", head, npe, head->next);
}
ans->total_interest_counts = sum;
hashtb_end(e);
ans->total_flood_control = 0; /* N/A */
/* Do a consistency check on pending interest counts */
for (sum = 0, i = 0; i < h->face_limit; i++) {
struct face *face = h->faces_by_faceid[i];
if (face != NULL)
sum += face->pending_interests;
}
if (sum != ans->total_interest_counts)
ccnd_msg(h, "ccnd_collect_stats found inconsistency %ld != %ld\n",
(long)sum, (long)ans->total_interest_counts);
ans->total_interest_counts = sum;
return(0);
}
