mirror of
https://github.com/servalproject/serval-dna.git
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c35af0617a
- make "debug.h" a private header so that the DEBUG() macro does not interfere with Xcode Debug builds, which set DEBUG=1 - move all #include "debug.h" from headers into .c files - move 'struct idebug' into a new public header "idebug.h" so that "log.h" can be public - move HTTPD port number defs from "httpd.h" to "constants.h", so that "httpd.h" can be private and "conf.h" can be public - add missing nested includes so each header compiles stand-alone without error - #include "sodium.h" instead of <sodium.h> - #include "sqlite3.h" instead of <sqlite3.h> - add header guard to "fifo.h" - fix header guard in "sync_keys.h"
87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
/*
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Serval DNA MDP lookup service
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Copyright (C) 2016-2017 Flinders University
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Copyright (C) 2010-2015 Serval Project Inc.
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Copyright (C) 2010-2012 Paul Gardner-Stephen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "serval.h"
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#include "conf.h"
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#include "keyring.h"
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#include "overlay_buffer.h"
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#include "debug.h"
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DEFINE_BINDING(MDP_PORT_DNALOOKUP, overlay_mdp_service_dnalookup);
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static int overlay_mdp_service_dnalookup(struct internal_mdp_header *header, struct overlay_buffer *payload)
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{
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IN();
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char did[DID_MAXSIZE + 1];
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size_t pll = ob_remaining(payload);
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if (pll < 1)
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RETURN(WHY("Empty DID in DNA resolution request"));
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if (pll > sizeof did - 1)
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pll = sizeof did - 1;
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ob_get_bytes(payload, (unsigned char *)did, pll);
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did[pll] = '\0';
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DEBUGF(mdprequests, "MDP_PORT_DNALOOKUP did=%s", alloca_str_toprint(did));
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int results=0;
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keyring_iterator it;
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keyring_iterator_start(keyring, &it);
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while(keyring_find_did(&it, did))
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{
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const char *unpackedDid = (const char *) it.keypair->private_key;
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/* package DID and Name into reply (we include the DID because
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it could be a wild-card DID search, but the SID is implied
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in the source address of our reply). */
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if (strlen(unpackedDid) > DID_MAXSIZE)
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/* skip excessively long DID records */
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continue;
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const char *name = (const char *)it.keypair->public_key;
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struct subscriber *subscriber = it.identity->subscriber;
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// URI is sid://SIDHEX/local/DID
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strbuf b = strbuf_alloca(SID_STRLEN + DID_MAXSIZE + 20);
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strbuf_puts(b, "sid://");
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strbuf_tohex(b, SID_STRLEN, subscriber->sid.binary);
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strbuf_puts(b, "/local/");
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strbuf_puts(b, unpackedDid);
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overlay_mdp_dnalookup_reply(header->source, header->source_port, subscriber, strbuf_str(b), unpackedDid, name);
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results++;
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}
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if (!results) {
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/* No local results, so see if servald has been configured to use
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a DNA-helper that can provide additional mappings. This provides
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a generalised interface for resolving telephone numbers into URIs.
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The first use will be for resolving DIDs to SIP addresses for
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OpenBTS boxes run by the OTI/Commotion project.
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The helper is run asynchronously, and the replies will be delivered
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when results become available, so this function will return
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immediately, so as not to cause blockages and delays in servald.
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*/
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dna_helper_enqueue(header->source, header->source_port, did);
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monitor_tell_formatted(MONITOR_DNAHELPER, "LOOKUP:%s:%d:%s\n",
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alloca_tohex_sid_t(header->source->sid), header->source_port,
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did);
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}
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RETURN(0);
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}
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