* @file hello/hello.c
* @brief helper library for handling HELLOs
* @author Christian Grothoff
+ * @author Matthias Wachs
*/
#include "platform.h"
#include "gnunet_hello_lib.h"
* 1) transport-name (0-terminated)
* 2) address-length (uint16_t, network byte order; possibly
* unaligned!)
- * 3) address expiration (GNUNET_TIME_AbsoluteNBO); possibly
+ * 3) address expiration (`struct GNUNET_TIME_AbsoluteNBO`); possibly
* unaligned!)
* 4) address (address-length bytes; possibly unaligned!)
*/
struct GNUNET_HELLO_Message
{
/**
- * Type will be GNUNET_MESSAGE_TYPE_HELLO.
+ * Type will be #GNUNET_MESSAGE_TYPE_HELLO.
*/
struct GNUNET_MessageHeader header;
/**
* The public key of the peer.
*/
- struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded publicKey;
+ struct GNUNET_CRYPTO_EddsaPublicKey publicKey;
};
GNUNET_NETWORK_STRUCT_END
const char *pos;
/**
- * Set to GNUNET_SYSERR to indicate parse errors.
+ * Set to #GNUNET_SYSERR to indicate parse errors.
*/
int ret;
+ /**
+ * Counter
+ */
+ unsigned int counter_total;
+
+ /**
+ * Counter skipped addresses
+ */
+ unsigned int counter_added;
+
+
/**
* Function for finding transport plugins by name.
*/
/** Return HELLO type
*
* @param h HELLO Message to test
- * @return GNUNET_YES or GNUNET_NO
+ * @return #GNUNET_YES or #GNUNET_NO
*/
int
GNUNET_HELLO_is_friend_only (const struct GNUNET_HELLO_Message *h)
* the given buffer using the format of HELLOs.
*
* @param address the address
- * @param expiration expiration for the address
- * @param target where to copy the address
+ * @param expiration expiration for the @a address
+ * @param target where to copy the @a address
* @param max maximum number of bytes to copy to target
* @return number of bytes copied, 0 if
* the target buffer was not big enough.
* @return size of the entry, or 0 if max is not large enough
*/
static size_t
-get_hello_address_size (const char *buf, size_t max, uint16_t * ralen)
+get_hello_address_size (const char *buf,
+ size_t max,
+ uint16_t *ralen)
{
const char *pos;
uint16_t alen;
pos++;
slen++;
}
- if (left == 0)
+ if (0 == left)
{
/* 0-termination not found */
GNUNET_break_op (0);
* @return the hello message
*/
struct GNUNET_HELLO_Message *
-GNUNET_HELLO_create (const struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded
- *publicKey,
+GNUNET_HELLO_create (const struct GNUNET_CRYPTO_EddsaPublicKey *publicKey,
GNUNET_HELLO_GenerateAddressListCallback addrgen,
void *addrgen_cls,
int friend_only)
used = 0;
if (addrgen != NULL)
{
- while (0 != (ret = addrgen (addrgen_cls, max, &buffer[used])))
+ while (GNUNET_SYSERR != (ret = addrgen (addrgen_cls, max, &buffer[used])))
{
max -= ret;
used += ret;
hello->friend_only = htonl (friend_only);
memcpy (&hello->publicKey, publicKey,
- sizeof (struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded));
+ sizeof (struct GNUNET_CRYPTO_EddsaPublicKey));
memcpy (&hello[1], buffer, used);
return hello;
}
* @param return_modified if a modified copy should be returned,
* otherwise NULL will be returned
* @param it iterator to call on each address
- * @param it_cls closure for it
+ * @param it_cls closure for @a it
* @return modified HELLO message
*/
struct GNUNET_HELLO_Message *
insize = msize - sizeof (struct GNUNET_HELLO_Message);
wpos = 0;
woff = (ret != NULL) ? (char *) &ret[1] : NULL;
- GNUNET_CRYPTO_hash (&msg->publicKey,
- sizeof (struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded),
- &address.peer.hashPubKey);
+ address.peer.public_key = msg->publicKey;
while (insize > 0)
{
esize = get_hello_address_size (inptr, insize, &alen);
- if (esize == 0)
+ if (0 == esize)
{
GNUNET_break (0);
GNUNET_free_non_null (ret);
address.address = &inptr[esize - alen];
address.address_length = alen;
address.transport_name = inptr;
+ address.local_info = GNUNET_HELLO_ADDRESS_INFO_NONE;
iret = it (it_cls, &address, GNUNET_TIME_absolute_ntoh (expire));
if (iret == GNUNET_SYSERR)
{
ec.found = GNUNET_NO;
GNUNET_HELLO_iterate_addresses (mc->other, GNUNET_NO, &get_match_exp, &ec);
if ((ec.found == GNUNET_NO) ||
- (ec.expiration.abs_value < expiration.abs_value) ||
- ((ec.expiration.abs_value == expiration.abs_value) &&
+ (ec.expiration.abs_value_us < expiration.abs_value_us) ||
+ ((ec.expiration.abs_value_us == expiration.abs_value_us) &&
(mc->take_equal == GNUNET_YES)))
{
mc->ret +=
}
-static size_t
+static ssize_t
merge_addr (void *cls, size_t max, void *buf)
{
struct MergeContext *mc = cls;
if (mc->h1 == NULL)
- return 0;
+ return GNUNET_SYSERR; /* Stop iteration */
mc->ret = 0;
mc->max = max;
mc->buf = buf;
int friend_only;
if (h1->friend_only != h2->friend_only)
- friend_only = GNUNET_YES; /* One of the HELLOs is friend only */
+ friend_only = GNUNET_YES; /* One of the HELLOs is friend only */
else
- friend_only = ntohl (h1->friend_only); /* Both HELLO's have the same type */
+ friend_only = ntohl (h1->friend_only); /* Both HELLO's have the same type */
- return GNUNET_HELLO_create (&h1->publicKey, &merge_addr, &mc, friend_only);
+ return GNUNET_HELLO_create (&h1->publicKey, &merge_addr, &mc, friend_only);
}
GNUNET_HELLO_iterate_addresses (dc->old_hello, GNUNET_NO, &get_match_exp,
&ec);
if ((ec.found == GNUNET_YES) &&
- ((ec.expiration.abs_value > expiration.abs_value) ||
- (ec.expiration.abs_value >= dc->expiration_limit.abs_value)))
+ ((ec.expiration.abs_value_us > expiration.abs_value_us) ||
+ (ec.expiration.abs_value_us >= dc->expiration_limit.abs_value_us)))
return GNUNET_YES; /* skip */
ret = dc->it (dc->it_cls, address, expiration);
return ret;
*/
int
GNUNET_HELLO_get_key (const struct GNUNET_HELLO_Message *hello,
- struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded *publicKey)
+ struct GNUNET_CRYPTO_EddsaPublicKey *publicKey)
{
uint16_t ret = ntohs (hello->header.size);
*
* @param hello the hello message
* @param peer where to store the peer's identity
- * @return GNUNET_SYSERR if the HELLO was malformed
+ * @return #GNUNET_SYSERR if the HELLO was malformed
*/
int
GNUNET_HELLO_get_id (const struct GNUNET_HELLO_Message *hello,
if ((ret < sizeof (struct GNUNET_HELLO_Message)) ||
(ntohs (hello->header.type) != GNUNET_MESSAGE_TYPE_HELLO))
return GNUNET_SYSERR;
- GNUNET_CRYPTO_hash (&hello->publicKey,
- sizeof (struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded),
- &peer->hashPubKey);
+ peer->public_key = hello->publicKey;
return GNUNET_OK;
}
{
struct EqualsContext *ec = cls;
- if (expiration.abs_value < ec->expiration_limit.abs_value)
+ if (expiration.abs_value_us < ec->expiration_limit.abs_value_us)
return GNUNET_YES;
if (0 == GNUNET_HELLO_address_cmp (address, ec->address))
{
ec->found = GNUNET_YES;
- if (expiration.abs_value < ec->expiration.abs_value)
+ if (expiration.abs_value_us < ec->expiration.abs_value_us)
ec->result = GNUNET_TIME_absolute_min (expiration, ec->result);
return GNUNET_SYSERR;
}
{
struct EqualsContext *ec = cls;
- if (expiration.abs_value < ec->expiration_limit.abs_value)
+ if (expiration.abs_value_us < ec->expiration_limit.abs_value_us)
return GNUNET_YES;
ec->address = address;
ec->expiration = expiration;
if (0 !=
memcmp (&h1->publicKey, &h2->publicKey,
- sizeof (struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded)))
+ sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
return GNUNET_TIME_UNIT_ZERO_ABS;
ec.expiration_limit = now;
ec.result = GNUNET_TIME_UNIT_FOREVER_ABS;
ec.h2 = h2;
GNUNET_HELLO_iterate_addresses (h1, GNUNET_NO, &find_matching, &ec);
- if (ec.result.abs_value == GNUNET_TIME_UNIT_ZERO.rel_value)
+ if (ec.result.abs_value_us == GNUNET_TIME_UNIT_ZERO.rel_value_us)
return ec.result;
ec.h2 = h1;
GNUNET_HELLO_iterate_addresses (h2, GNUNET_NO, &find_matching, &ec);
static int
-find_min_expire (void *cls, const struct GNUNET_HELLO_Address *address,
+find_max_expire (void *cls, const struct GNUNET_HELLO_Address *address,
struct GNUNET_TIME_Absolute expiration)
{
- struct GNUNET_TIME_Absolute *min = cls;
+ struct GNUNET_TIME_Absolute *max = cls;
- *min = GNUNET_TIME_absolute_min (*min, expiration);
+ *max = GNUNET_TIME_absolute_max (*max, expiration);
return GNUNET_OK;
}
{
struct GNUNET_TIME_Absolute ret;
- ret.abs_value = 0;
- GNUNET_HELLO_iterate_addresses (msg, GNUNET_NO, &find_min_expire, &ret);
+ ret.abs_value_us = 0;
+ GNUNET_HELLO_iterate_addresses (msg, GNUNET_NO, &find_max_expire, &ret);
return ret;
}
* maybe differenciated into additional subcategories if applicable.
* This module only deals with hello identifiers (MODULE = "hello").
* <p>
- *
+ *
* The concrete URI format is:
- *
+ *
* "gnunet://hello/PEER[!YYYYMMDDHHMMSS!<TYPE>!<ADDRESS>]...".
* These URIs can be used to add a peer record to peerinfo service.
* PEER is the string representation of peer's public key.
* TYPE is a transport type.
* ADDRESS is the address, its format depends upon the transport type.
* The concrete transport types and corresponding address formats are:
- *
+ *
* <ul><li>
- *
+ *
* <TCP|UDP>!IPADDRESS
* IPVDDRESS is either IPV4 .-delimited address in form of XXX.XXX.XXX.XXX:PPPPP
* or IPV6 :-delimited address, but with '(' and ')' instead of '[' and ']' (RFC2396 advises against using square brackets in URIs):
* (XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX):PPPPP
* PPPPP is the port number. May be 0.
- *
+ *
* </li><li>
- *
+ *
* [add SMTP, HTTP and other addresses here]
- *
+ *
* </li></ul>
- *
+ *
* The encoding for hexadecimal values is defined in the crypto_hash.c
* module in the gnunetutil library and discussed there.
- *
+ *
* Examples:
- *
+ *
* gnunet://hello/0430205UC7D56PTQK8NV05776671CNN44FK4TL6D0GQ35OMF8MEN4RNMKA5UF6AL3DQO8B1SC5AQF50SQ2MABIRU4HC8H2HAJKJ59JL1JVRJAK308F9GASRFLMGUBB5TQ5AKR94AS5T3MDG8B9O1EMPRKB0HVCG7T6QPP4CDJ913LAEHVJ2DI1TOBB15Q1JIT5ARBOD12U4SIGRFDV3Q7T66G4TBVSJJ90UQF1BG29TGJJKLGEIMSPHHKO544D6EALQ4F2K0416311JC22GVAD48R616I7VK03K7MP7N0RS2MBV1TE9JV8CK1LSQMR7KCDRTLDA6917UGA67DHTGHERIACCGQ54TGSR48RMSGS9BA5HLMOKASFC1I6V4TT09TUGCU8GNDHQF0JF3H7LPV59UL5I38QID040G000!20120302010059!TCP!192.168.0.1:2086!TCP!64.23.8.174:0
* gnunet://hello/0430205UC7D56PTQK8NV05776671CNN44FK4TL6D0GQ35OMF8MEN4RNMKA5UF6AL3DQO8B1SC5AQF50SQ2MABIRU4HC8H2HAJKJ59JL1JVRJAK308F9GASRFLMGUBB5TQ5AKR94AS5T3MDG8B9O1EMPRKB0HVCG7T6QPP4CDJ913LAEHVJ2DI1TOBB15Q1JIT5ARBOD12U4SIGRFDV3Q7T66G4TBVSJJ90UQF1BG29TGJJKLGEIMSPHHKO544D6EALQ4F2K0416311JC22GVAD48R616I7VK03K7MP7N0RS2MBV1TE9JV8CK1LSQMR7KCDRTLDA6917UGA67DHTGHERIACCGQ54TGSR48RMSGS9BA5HLMOKASFC1I6V4TT09TUGCU8GNDHQF0JF3H7LPV59UL5I38QID040G000!20120302010059!TCP!(2001:db8:85a3:8d3:1319:8a2e:370:7348):2086
- *
+ *
* <p>
*/
characters in URIs */
uri_addr = map_characters (addr_dup, "[]", "()");
GNUNET_free (addr_dup);
- seconds = expiration.abs_value / 1000;
+ seconds = expiration.abs_value_us / 1000LL / 1000LL;
t = gmtime (&seconds);
GNUNET_asprintf (&ret,
struct GNUNET_HELLO_ComposeUriContext ctx;
ctx.plugins_find = plugins_find;
- char *pkey = GNUNET_CRYPTO_ecc_public_key_to_string (&(hello->publicKey));
+ char *pkey = GNUNET_CRYPTO_eddsa_public_key_to_string (&(hello->publicKey));
GNUNET_asprintf (&(ctx.uri),
"%s%s",
* @param cls the 'struct GNUNET_HELLO_AddressParsingContext'
* @param max number of bytes available for HELLO construction
* @param buffer where to copy the next address (in binary format)
- * @return number of bytes added to buffer
+ * @return number of bytes added to buffer, GNUNET_SYSERR on error
*/
-static size_t
+static ssize_t
add_address_to_hello (void *cls, size_t max, void *buffer)
{
struct GNUNET_HELLO_ParseUriContext *ctx = cls;
void *addr;
size_t addr_len;
struct GNUNET_HELLO_Address haddr;
- size_t ret;
+ ssize_t ret;
+
if (NULL == ctx->pos)
- return 0;
+ return GNUNET_SYSERR;
if ('!' != ctx->pos[0])
{
ctx->ret = GNUNET_SYSERR;
GNUNET_break (0);
- return 0;
+ return GNUNET_SYSERR;
}
ctx->pos++;
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Failed to parse HELLO message: missing expiration time\n"));
GNUNET_break (0);
- return 0;
+ return GNUNET_SYSERR;
}
expiration_seconds = mktime (&expiration_time);
_("Failed to parse HELLO message: invalid expiration time\n"));
ctx->ret = GNUNET_SYSERR;
GNUNET_break (0);
- return 0;
+ return GNUNET_SYSERR;
}
- expire.abs_value = expiration_seconds * 1000;
+ expire.abs_value_us = expiration_seconds * 1000LL * 1000LL;
}
if ('!' != tname[0])
{
_("Failed to parse HELLO message: malformed\n"));
ctx->ret = GNUNET_SYSERR;
GNUNET_break (0);
- return 0;
+ return GNUNET_SYSERR;
}
tname++;
address = strchr (tname, (int) '!');
_("Failed to parse HELLO message: missing transport plugin\n"));
ctx->ret = GNUNET_SYSERR;
GNUNET_break (0);
- return 0;
+ return GNUNET_SYSERR;
}
address++;
end = strchr (address, (int) '!');
ctx->pos = end;
+ ctx->counter_total ++;
plugin_name = GNUNET_strndup (tname, address - (tname+1));
papi = ctx->plugins_find (plugin_name);
if (NULL == papi)
* Skip this part, advance to the next one and recurse.
* But only if this is not the end of string.
*/
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Plugin `%s' not found\n"),
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Plugin `%s' not found, skipping address\n"),
plugin_name);
GNUNET_free (plugin_name);
- GNUNET_break (0);
return 0;
}
if (NULL == papi->string_to_address)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_("Plugin `%s' does not support URIs yet\n"),
plugin_name);
GNUNET_free (plugin_name);
haddr.address = addr;
haddr.transport_name = plugin_name;
ret = GNUNET_HELLO_add_address (&haddr, expire, buffer, max);
+ ctx->counter_added ++;
GNUNET_free (addr);
GNUNET_free (plugin_name);
return ret;
*/
int
GNUNET_HELLO_parse_uri (const char *uri,
- struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded *pubkey,
+ struct GNUNET_CRYPTO_EddsaPublicKey *pubkey,
struct GNUNET_HELLO_Message **hello,
GNUNET_HELLO_TransportPluginsFind plugins_find)
{
ctx.pos = exc;
ctx.ret = GNUNET_OK;
+ ctx.counter_total = 0;
+ ctx.counter_added = 0;
ctx.plugins_find = plugins_find;
*hello = GNUNET_HELLO_create (pubkey, &add_address_to_hello, &ctx, friend_only);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("HELLO URI contained %u addresses, added %u addresses\n"),
+ ctx.counter_total, ctx.counter_added);
+
return ctx.ret;
}