+Sun Feb 4 13:18:32 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
+
+ * Added new packet type SILC_PACKET_SET_MODE that is used to
+ distribute the information about changed modes (for clients,
+ channels and clients channel modes) to all routers in the
+ network. Updated the protocol specification accordingly.
+
+ Added functions into silcd/packet_send.c and
+ silcd/packet_receive.c: silc_server_send_set_mode,
+ silc_server_set_mode.
+
+ Added new files silcmode.[ch] into lib/silccore that implements
+ the encoding and decoding of Set Mode Payload. Added new type
+ SilcSetModePayload. Moved the definitions of different modes
+ from lib/silccore/silcchannel.h into lib/silccore/silcmode.h.
+
Sat Feb 3 15:44:54 EET 2001 Pekka Riikonen <priikone@poseidon.pspt.fi>
* Oops, a little mistake in server's connection authentication
out:
silc_id_payload_free(idp);
}
+
+/* Processes received SET_MODE packet. The packet is used to distribute
+ the information about changed channel's or client's channel modes. */
+
+void silc_server_set_mode(SilcServer server,
+ SilcSocketConnection sock,
+ SilcPacketContext *packet)
+{
+ SilcSetModePayload payload = NULL;
+ SilcArgumentPayload args = NULL;
+ unsigned short mode_type;
+ unsigned int mode_mask;
+ unsigned char *tmp, *tmp2;
+ unsigned int tmp_len, tmp_len2;
+ unsigned char mode[4];
+ SilcClientID *client_id;
+ SilcChannelID *channel_id = NULL;
+ SilcClientEntry client;
+ SilcChannelEntry channel;
+ SilcChannelClientEntry chl;
+
+ if (sock->type == SILC_SOCKET_TYPE_CLIENT ||
+ packet->src_id_type == SILC_ID_CLIENT)
+ return;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ /* If we are router and this packet is not already broadcast packet
+ we will broadcast it. The sending socket really cannot be router or
+ the router is buggy. If this packet is coming from router then it must
+ have the broadcast flag set already and we won't do anything. */
+ if (!server->standalone && server->server_type == SILC_ROUTER &&
+ sock->type == SILC_SOCKET_TYPE_SERVER &&
+ !(packet->flags & SILC_PACKET_FLAG_BROADCAST)) {
+ SILC_LOG_DEBUG(("Broadcasting received Set Mode packet"));
+ silc_server_packet_send(server, server->router->connection, packet->type,
+ packet->flags | SILC_PACKET_FLAG_BROADCAST,
+ packet->buffer->data, packet->buffer->len, FALSE);
+ }
+
+ /* Parse Set Mode payload */
+ payload = silc_set_mode_payload_parse(packet->buffer);
+ if (!payload)
+ return;
+
+ mode_type = silc_set_mode_get_type(payload);
+ args = silc_set_mode_get_args(payload);
+ if (!args)
+ goto out;
+
+ mode_mask = silc_set_mode_get_mode(payload);
+ SILC_PUT32_MSB(mode_mask, mode);
+
+ switch (mode_type) {
+ case SILC_MODE_TYPE_CHANNEL:
+ /* Get Channel ID */
+ tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
+ if (!tmp)
+ goto out;
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!channel_id)
+ goto out;
+
+ /* Get channel entry */
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel)
+ goto out;
+ }
+
+ /* Get Client ID payload */
+ tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
+ if (!tmp)
+ goto out;
+
+ /* Send CMODE_CHANGE notify to local channel */
+ silc_server_send_notify_to_channel(server, sock, channel, FALSE,
+ SILC_NOTIFY_TYPE_CMODE_CHANGE,
+ 2, tmp, tmp_len,
+ mode, sizeof(mode));
+
+ /* Change the mode */
+ channel->mode = mode_mask;
+ break;
+
+ case SILC_MODE_TYPE_UCHANNEL:
+ /* Get Channel ID */
+ tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
+ if (!tmp)
+ goto out;
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!channel_id)
+ goto out;
+
+ /* Get channel entry */
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel)
+ goto out;
+ }
+
+ /* Get Client ID payload */
+ tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
+ if (!tmp)
+ goto out;
+
+ /* Get target Client ID */
+ tmp2 = silc_argument_get_arg_type(args, 3, &tmp_len2);
+ if (!tmp2)
+ goto out;
+ client_id = silc_id_payload_parse_id(tmp2, tmp_len2);
+ if (!client_id)
+ goto out;
+
+ /* Get target client entry */
+ client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ if (!client) {
+ client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!client) {
+ silc_free(client_id);
+ goto out;
+ }
+ }
+ silc_free(client_id);
+
+ /* Send CUMODE_CHANGE notify to local channel */
+ silc_server_send_notify_to_channel(server, sock, channel, FALSE,
+ SILC_NOTIFY_TYPE_CUMODE_CHANGE, 2,
+ tmp, tmp_len,
+ mode, sizeof(mode),
+ tmp2, tmp_len2);
+
+ /* Get entry to the channel user list */
+ silc_list_start(channel->user_list);
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
+ if (chl->client == client) {
+ /* Change the mode */
+ chl->mode = mode_mask;
+ break;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ out:
+ if (channel_id)
+ silc_free(channel_id);
+ if (args)
+ silc_argument_payload_free(args);
+ if (payload)
+ silc_set_mode_payload_free(payload);
+}
idp->data, idp->len, FALSE);
silc_buffer_free(idp);
}
+
+/* Function used to send SET_MODE packet. The packet is used to notify routers
+ that channel's or client's channel mode was changed. If the argument
+ `broadcast' is TRUE then the packet is sent as broadcast packet. */
+
+void silc_server_send_set_mode(SilcServer server,
+ SilcSocketConnection sock,
+ int broadcast,
+ int mode_type, unsigned int mode_mask,
+ unsigned int argc, ...)
+{
+ SilcBuffer packet;
+ va_list ap;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ va_start(ap, argc);
+
+ /* Encode Set Mode payload */
+ packet = silc_set_mode_payload_encode(mode_type, mode_mask, argc, ap);
+ if (!packet)
+ return;
+
+ /* Send the packet */
+ silc_server_packet_send(server, sock, SILC_PACKET_SET_MODE,
+ broadcast ? SILC_PACKET_FLAG_BROADCAST : 0,
+ packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+}
int broadcast,
void *id, unsigned int id_len,
SilcIdType id_type);
+void silc_server_send_set_mode(SilcServer server,
+ SilcSocketConnection sock,
+ int broadcast,
+ int mode_type, unsigned int mode_mask,
+ unsigned int argc, ...);
#endif
silc_server_remove_channel_user(server, sock, packet);
break;
+ case SILC_PACKET_SET_MODE:
+ /*
+ * Received packet to set the mode of channel or client's channel mode.
+ */
+ SILC_LOG_DEBUG(("Set Mode packet"));
+ silc_server_set_mode(server, sock, packet);
+ break
+
default:
SILC_LOG_ERROR(("Incorrect packet type %d, packet dropped", type));
break;
if (!sock)
return;
+ if (sock->user_data)
+ silc_server_free_sock_user_data(sconn->server, sock);
+
silc_server_disconnect_remote(sconn->server, sock,
"Server closed connection: "
"Connection timeout");
2.3.24 Replace ID Payload ................................. 36
2.3.25 Remove ID Payload .................................. 37
2.3.26 Remove Channel User Payload ........................ 38
+ 2.3.27 Set Mode Payload ................................... XXX
2.4 SILC ID Types ............................................. 39
2.5 Packet Encryption And Decryption .......................... 39
2.5.1 Normal Packet Encryption And Decryption ............. 39
Figure 20: New Channel User Payload
Figure 21: Replace ID Payload
Figure 22: Remove Channel User Payload
+Figure 23: Set Mode Payload
.ti 0
as SILC Key Exchange protocol is executed. This packet does
not have a payload.
+
+ 31 SILC_PACKET_SET_MODE
- 31 - 199
+ This packet is used by servers and routers to inform each
+ other about changed modes. When channel's and client'c channel
+ mode is changed this packet is used to distribute the information
+ to all routers in the network. Server can send this packet but
+ must not receive it. Router can send and receive this packet.
+ Client must not send or receive this packet.
+
+ Payload of the packet: See section 2.3.27 Set Mode Payload
+
+
+ 32 - 199
Currently undefined commands.
The <Client ID> is the client who changed the mode. The <mode mask>
is the new mode mask of the channel. The <Target Client ID> is the
- client whose mode was changed.
+ client which mode was changed.
9 SILC_NOTIFY_TYPE_MOTD
.in 3
+.ti 0
+2.3.27 Set Mode Payload
+
+Set Mode Payload is used by servers and routers to distribute to each
+other the information about changed modes in the SILC network. The
+payload is sent when channel's or client's channel mode is changed.
+Server can send this to router which will broadcast it further to other
+routers. However, normal server must not reiceve this payload. Client
+must not send or receive this payload.
+
+The payload may only be sent with SILC_PACKET_SET_MODE packet.
+It must not be sent in any other packet type. Following diagram
+represents the Set Mode Payload.
+
+
+
+.in 5
+.nf
+.in 5
+.nf
+ 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Mode Type | Payload Length |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Mode Mask |
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+| Argument Nums |
++-+-+-+-+-+-+-+-+
+.in 3
+
+.ce
+Figure 23: Set Mode Payload
+
+
+.in 6
+o Mode type (2 bytes) - Indicates the type of the mode that was
+ changed. Every type has arguments associated to the type which
+ are defined below. The following types are defined:
+
+ 0 SILC_MODE_TYPE_CHANNEL
+
+ Max Arguments: 2
+ Arguments: (1) <Channel ID> (2) <Client ID>
+
+ The <Channel ID> is the channel which mode was set and the
+ <Client ID> is the client who set it.
+
+
+ 1 SILC_MODE_TYPE_UCHANNEL
+
+ Max Arguments: 3
+ Arguments: (1) <Channel ID> (2) <Client ID>
+ (3) <Target Client ID>
+
+ The <Channel ID> is the channel where the <Client ID> and
+ the <Target Client ID> is on. The <Client ID> is the client
+ who set the <Target Client ID> mode.
+
+
+ 2 - RESERVED
+
+ Reserved types.
+
+
+ 32768 - Private range
+
+ Rest of the types are reserved for private use.
+
+o Payload Length (2 bytes) - Length of the entire Set Mode Payload
+ including any associated Argument Payloads.
+
+o Mode Mask (4 bytes) - Indicates the set mode mask. This is
+ specified by the mode type. See definitions of SILC_COMMAND_UMODE
+ for client modes, SILC_COMMAND_CMODE for channel modes and
+ SILC_COMMAND_CUMODE for client's channel modes in [SILC1].
+
+o Argument Nums (2 bytes) - Indicates the number of Argument
+ Payloads associated to this payload. Mode types may define
+ arguments to be send along this payload.
+.in 3
+
+
.ti 0
2.4 SILC ID Types
+
/*
silcincludes.h
#include "silcchannel.h"
#include "silcpacket.h"
#include "silcnotify.h"
+#include "silcmode.h"
/* TRQ (SilcList API and SilcDList API) */
#include "silclist.h"
silcprotocol.c \
silcsockconn.c \
silcpayload.c \
- silcnotify.c
+ silcnotify.c \
+ silcmode.c
EXTRA_DIST = *.h
actual structure is defined in source file and is private data. */
typedef struct SilcChannelKeyPayloadStruct *SilcChannelKeyPayload;
-/* Channel modes */
-#define SILC_CHANNEL_MODE_NONE 0x0000
-#define SILC_CHANNEL_MODE_PRIVATE 0x0001 /* private channel */
-#define SILC_CHANNEL_MODE_SECRET 0x0002 /* secret channel */
-#define SILC_CHANNEL_MODE_PRIVKEY 0x0004 /* channel has private key */
-#define SILC_CHANNEL_MODE_INVITE 0x0008 /* invite only channel */
-#define SILC_CHANNEL_MODE_TOPIC 0x0010 /* topic setting by operator */
-#define SILC_CHANNEL_MODE_ULIMIT 0x0020 /* user limit set */
-#define SILC_CHANNEL_MODE_PASSPHRASE 0x0040 /* passphrase set */
-#define SILC_CHANNEL_MODE_BAN 0x0080 /* ban list set */
-#define SILC_CHANNEL_MODE_INVITE_LIST 0x0100 /* invite list set */
-#define SILC_CHANNEL_MODE_CIPHER 0x0200 /* sets cipher of channel */
-
-/* User modes on channel */
-#define SILC_CHANNEL_UMODE_NONE 0x0000 /* Normal user */
-#define SILC_CHANNEL_UMODE_CHANFO 0x0001 /* channel founder */
-#define SILC_CHANNEL_UMODE_CHANOP 0x0002 /* channel operator */
-
/* Prototypes */
SilcChannelPayload silc_channel_payload_parse(SilcBuffer buffer);
SilcBuffer silc_channel_payload_encode(unsigned short data_len,
#define SILC_PACKET_REMOVE_CHANNEL_USER 28 /* Remove user from channel */
#define SILC_PACKET_REKEY 29
#define SILC_PACKET_REKEY_DONE 30
+#define SILC_PACKET_SET_MODE 31 /* Set mode */
/* #define SILC_PACKET_MAX 255 */
/* Macros */
projects / silc.git / commitdiff