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[GNUnet-SVN] [gnunet] branch master updated: first preparations for GNS
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From: |
gnunet |
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Subject: |
[GNUnet-SVN] [gnunet] branch master updated: first preparations for GNS mapping arbitrary TLDs |
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Date: |
Sun, 25 Feb 2018 23:21:35 +0100 |
This is an automated email from the git hooks/post-receive script.
grothoff pushed a commit to branch master
in repository gnunet.
The following commit(s) were added to refs/heads/master by this push:
new 56a9d4001 first preparations for GNS mapping arbitrary TLDs
56a9d4001 is described below
commit 56a9d4001b0844287ecc55b103549370676646a8
Author: Christian Grothoff <address@hidden>
AuthorDate: Sun Feb 25 23:21:34 2018 +0100
first preparations for GNS mapping arbitrary TLDs
---
contrib/gns-bcd.tex | 1 -
src/exit/gnunet-daemon-exit.c | 4 +-
src/gns/Makefile.am | 2 +-
src/gns/gnunet-service-gns.c | 133 ++++++++++++++++++++++++++++++-
src/gns/gnunet-service-gns_interceptor.c | 4 +-
src/gns/gnunet-service-gns_resolver.c | 7 +-
6 files changed, 142 insertions(+), 9 deletions(-)
diff --git a/contrib/gns-bcd.tex b/contrib/gns-bcd.tex
index 5e33ffbc7..73a302985 100644
--- a/contrib/gns-bcd.tex
+++ b/contrib/gns-bcd.tex
@@ -18809,4 +18809,3 @@
% \card{english}
% \end{center}
%\end{figure}
-
diff --git a/src/exit/gnunet-daemon-exit.c b/src/exit/gnunet-daemon-exit.c
index d9a5dd684..c624e083e 100644
--- a/src/exit/gnunet-daemon-exit.c
+++ b/src/exit/gnunet-daemon-exit.c
@@ -3373,10 +3373,10 @@ add_services (int proto,
/**
- * Reads the configuration servicecfg and populates udp_services
+ * Reads the configuration and populates #udp_services and #tcp_services
*
* @param cls unused
- * @param section name of section in config, equal to hostname
+ * @param section name of section in config
*/
static void
read_service_conf (void *cls,
diff --git a/src/gns/Makefile.am b/src/gns/Makefile.am
index 977eb87e3..e89192414 100644
--- a/src/gns/Makefile.am
+++ b/src/gns/Makefile.am
@@ -185,7 +185,7 @@ w32nsp_resolve_SOURCES = \
w32nsp_resolve_LDADD = -lws2_32
gnunet_service_gns_SOURCES = \
- gnunet-service-gns.c \
+ gnunet-service-gns.c gnunet-service-gns.h \
gnunet-service-gns_resolver.c gnunet-service-gns_resolver.h \
gnunet-service-gns_interceptor.c gnunet-service-gns_interceptor.h
gnunet_service_gns_LDADD = \
diff --git a/src/gns/gnunet-service-gns.c b/src/gns/gnunet-service-gns.c
index 0ca25ac19..e13beb889 100644
--- a/src/gns/gnunet-service-gns.c
+++ b/src/gns/gnunet-service-gns.c
@@ -101,6 +101,38 @@ struct GnsClient
/**
+ * Representation of a TLD, mapping the respective TLD string
+ * (i.e. ".gnu") to the respective public key of the zone.
+ */
+struct GNS_TopLevelDomain
+{
+
+ /**
+ * Kept in a DLL, as there are unlikely enough of these to
+ * warrant a hash map.
+ */
+ struct GNS_TopLevelDomain *next;
+
+ /**
+ * Kept in a DLL, as there are unlikely enough of these to
+ * warrant a hash map.
+ */
+ struct GNS_TopLevelDomain *prev;
+
+ /**
+ * Public key associated with the @a tld.
+ */
+ struct GNUNET_CRYPTO_EddsaPublicKey pkey;
+
+ /**
+ * Top-level domain as a string, including leading ".".
+ */
+ char *tld;
+
+};
+
+
+/**
* Our handle to the DHT
*/
static struct GNUNET_DHT_Handle *dht_handle;
@@ -136,6 +168,50 @@ static int v4_enabled;
*/
static struct GNUNET_STATISTICS_Handle *statistics;
+/**
+ * Head of DLL of TLDs we map to GNS zones.
+ */
+static struct GNS_TopLevelDomain *tld_head;
+
+/**
+ * Tail of DLL of TLDs we map to GNS zones.
+ */
+static struct GNS_TopLevelDomain *tld_tail;
+
+
+/**
+ * Find GNS zone belonging to TLD @a tld.
+ *
+ * @param tld_str top-level domain to look up
+ * @param[out] pkey public key to set
+ * @return #GNUNET_YES if @a tld was found #GNUNET_NO if not
+ */
+int
+GNS_find_tld (const char *tld_str,
+ struct GNUNET_CRYPTO_EddsaPublicKey *pkey)
+{
+ if ('\0' == *tld_str)
+ return GNUNET_NO;
+ for (struct GNS_TopLevelDomain *tld = tld_head;
+ NULL != tld;
+ tld = tld->next)
+ {
+ if (0 == strcasecmp (tld_str,
+ tld->tld))
+ {
+ *pkey = tld->pkey;
+ return GNUNET_YES;
+ }
+ }
+ if (GNUNET_OK ==
+ GNUNET_STRINGS_string_to_data (tld_str + 1,
+ strlen (tld_str + 1),
+ pkey,
+ sizeof (*pkey)))
+ return GNUNET_YES; /* TLD string *was* the public key */
+ return GNUNET_NO;
+}
+
/**
* Task run during shutdown.
@@ -146,6 +222,7 @@ static struct GNUNET_STATISTICS_Handle *statistics;
static void
shutdown_task (void *cls)
{
+ struct GNS_TopLevelDomain *tld;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Shutting down!\n");
GNS_interceptor_done ();
@@ -176,6 +253,14 @@ shutdown_task (void *cls)
GNUNET_DHT_disconnect (dht_handle);
dht_handle = NULL;
}
+ while (NULL != (tld = tld_head))
+ {
+ GNUNET_CONTAINER_DLL_remove (tld_head,
+ tld_tail,
+ tld);
+ GNUNET_free (tld->tld);
+ GNUNET_free (tld);
+ }
}
@@ -420,6 +505,47 @@ identity_intercept_cb (void *cls,
/**
+ * Reads the configuration and populates TLDs
+ *
+ * @param cls unused
+ * @param section name of section in config, always "gns"
+ * @param option name of the option, TLDs start with "."
+ * @param value value for the option, public key for TLDs
+ */
+static void
+read_service_conf (void *cls,
+ const char *section,
+ const char *option,
+ const char *value)
+{
+ struct GNUNET_CRYPTO_EddsaPublicKey pk;
+ struct GNS_TopLevelDomain *tld;
+
+ if (option[0] != '.')
+ return;
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_string_to_data (value,
+ strlen (value),
+ &pk,
+ sizeof (pk)))
+ {
+ GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+ section,
+ option,
+ _("Properly base32-encoded public key
required"));
+ return;
+ }
+ tld = GNUNET_new (struct GNS_TopLevelDomain);
+ tld->tld = GNUNET_strdup (option);
+ tld->pkey = pk;
+ GNUNET_CONTAINER_DLL_insert (tld_head,
+ tld_tail,
+ tld);
+}
+
+
+
+/**
* Process GNS requests.
*
* @param cls closure
@@ -433,6 +559,10 @@ run (void *cls,
{
unsigned long long max_parallel_bg_queries = 16;
+ GNUNET_CONFIGURATION_iterate_section_values (c,
+ "gns",
+ &read_service_conf,
+ NULL);
v6_enabled = GNUNET_NETWORK_test_pf (PF_INET6);
v4_enabled = GNUNET_NETWORK_test_pf (PF_INET);
namecache_handle = GNUNET_NAMECACHE_connect (c);
@@ -459,7 +589,8 @@ run (void *cls,
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Could not connect to DHT!\n"));
- GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
+ GNUNET_SCHEDULER_add_now (&shutdown_task,
+ NULL);
return;
}
diff --git a/src/gns/gnunet-service-gns_interceptor.c
b/src/gns/gnunet-service-gns_interceptor.c
index a9e207891..71aa08dc5 100644
--- a/src/gns/gnunet-service-gns_interceptor.c
+++ b/src/gns/gnunet-service-gns_interceptor.c
@@ -327,7 +327,9 @@ handle_dns_request (void *cls,
{
/* Start resolution in GNS */
ilh = GNUNET_new (struct InterceptLookupHandle);
- GNUNET_CONTAINER_DLL_insert (ilh_head, ilh_tail, ilh);
+ GNUNET_CONTAINER_DLL_insert (ilh_head,
+ ilh_tail,
+ ilh);
ilh->packet = p;
ilh->request_handle = rh;
ilh->lookup = GNS_resolver_lookup (&zone,
diff --git a/src/gns/gnunet-service-gns_resolver.c
b/src/gns/gnunet-service-gns_resolver.c
index 5bf443267..533c0cada 100644
--- a/src/gns/gnunet-service-gns_resolver.c
+++ b/src/gns/gnunet-service-gns_resolver.c
@@ -2252,7 +2252,7 @@ recursive_resolution (void *cls)
* Begin the resolution process from 'name', starting with
* the identification of the zone specified by 'name'.
*
- * @param cls the `struct GNS_ResolverHandle`
+ * @param cls the `struct GNS_ResolverHandle`
*/
static void
start_resolver_lookup (void *cls)
@@ -2595,10 +2595,11 @@ GNS_resolver_done ()
*
* @param name the name to check
* @param tld the TLD to check for
- * @return GNUNET_YES or GNUNET_NO
+ * @return #GNUNET_YES or #GNUNET_NO
*/
int
-is_tld (const char* name, const char* tld)
+is_tld (const char* name,
+ const char* tld)
{
size_t offset = 0;
--
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