152419Sjulian/* 252419Sjulian * ng_message.h 3139823Simp */ 4139823Simp 5139823Simp/*- 652419Sjulian * Copyright (c) 1996-1999 Whistle Communications, Inc. 752419Sjulian * All rights reserved. 852419Sjulian * 952419Sjulian * Subject to the following obligations and disclaimer of warranty, use and 1052419Sjulian * redistribution of this software, in source or object code forms, with or 1152419Sjulian * without modifications are expressly permitted by Whistle Communications; 1252419Sjulian * provided, however, that: 1352419Sjulian * 1. Any and all reproductions of the source or object code must include the 1452419Sjulian * copyright notice above and the following disclaimer of warranties; and 1552419Sjulian * 2. No rights are granted, in any manner or form, to use Whistle 1652419Sjulian * Communications, Inc. trademarks, including the mark "WHISTLE 1752419Sjulian * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 1852419Sjulian * such appears in the above copyright notice or in the software. 1952419Sjulian * 2052419Sjulian * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 2152419Sjulian * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 2252419Sjulian * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 2352419Sjulian * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 2452419Sjulian * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 2552419Sjulian * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 2652419Sjulian * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 2752419Sjulian * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 2852419Sjulian * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 2952419Sjulian * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 3052419Sjulian * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 3152419Sjulian * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 3252419Sjulian * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 3352419Sjulian * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3452419Sjulian * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 3552419Sjulian * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 3652419Sjulian * OF SUCH DAMAGE. 3752419Sjulian * 3867506Sjulian * Author: Julian Elischer <julian@freebsd.org> 3952419Sjulian * 4052419Sjulian * $FreeBSD$ 4152419Sjulian * $Whistle: ng_message.h,v 1.12 1999/01/25 01:17:44 archie Exp $ 4252419Sjulian */ 4352419Sjulian 4452419Sjulian#ifndef _NETGRAPH_NG_MESSAGE_H_ 45122481Sru#define _NETGRAPH_NG_MESSAGE_H_ 4652419Sjulian 4752419Sjulian/* ASCII string size limits */ 48122548Sharti#define NG_TYPESIZ 32 /* max type name len (including null) */ 49122548Sharti#define NG_HOOKSIZ 32 /* max hook name len (including null) */ 50122548Sharti#define NG_NODESIZ 32 /* max node name len (including null) */ 51122548Sharti#define NG_PATHSIZ 512 /* max path len (including null) */ 52122548Sharti#define NG_CMDSTRSIZ 32 /* max command string (including null) */ 53122548Sharti 5452419Sjulian#define NG_TEXTRESPONSE 1024 /* allow this length for a text response */ 5552419Sjulian 5652419Sjulian/* A netgraph message */ 5752419Sjulianstruct ng_mesg { 5852419Sjulian struct ng_msghdr { 5970159Sjulian u_char version; /* == NGM_VERSION */ 60141375Sglebius u_char spare; /* pad to 4 bytes */ 61141375Sglebius u_int16_t spare2; 62141375Sglebius u_int32_t arglen; /* length of data */ 63134057Sjulian u_int32_t cmd; /* command identifier */ 6452419Sjulian u_int32_t flags; /* message status */ 6552419Sjulian u_int32_t token; /* match with reply */ 6652419Sjulian u_int32_t typecookie; /* node's type cookie */ 67125028Sharti u_char cmdstr[NG_CMDSTRSIZ]; /* cmd string + \0 */ 6852419Sjulian } header; 69121325Sharti char data[]; /* placeholder for actual data */ 7052419Sjulian}; 7153913Sarchie 72154265Sglebius/* This command is guaranteed to not alter data (or'd into the command). */ 7370700Sjulian#define NGM_READONLY 0x10000000 74154265Sglebius/* This command is guaranteed to have a reply (or'd into the command). */ 75154265Sglebius#define NGM_HASREPLY 0x20000000 7670159Sjulian 7753913Sarchie/* Keep this in sync with the above structure definition */ 7853913Sarchie#define NG_GENERIC_NG_MESG_INFO(dtype) { \ 7964508Sarchie { "version", &ng_parse_uint8_type }, \ 8064508Sarchie { "spare", &ng_parse_uint8_type }, \ 81141375Sglebius { "spare2", &ng_parse_uint16_type }, \ 82141375Sglebius { "arglen", &ng_parse_uint32_type }, \ 83134057Sjulian { "cmd", &ng_parse_uint32_type }, \ 8464508Sarchie { "flags", &ng_parse_hint32_type }, \ 8564508Sarchie { "token", &ng_parse_uint32_type }, \ 8664508Sarchie { "typecookie", &ng_parse_uint32_type }, \ 8753913Sarchie { "cmdstr", &ng_parse_cmdbuf_type }, \ 8853913Sarchie { "data", (dtype) }, \ 8997685Sarchie { NULL } \ 9053913Sarchie} 9153913Sarchie 9270159Sjulian/* 9370159Sjulian * Netgraph message header compatibility field 9470159Sjulian * Interfaces within the kernel are defined by a different 95141375Sglebius * value (see NG_ABI_VERSION in netgraph.h) 9670159Sjulian */ 97141375Sglebius#define NG_VERSION 8 9853913Sarchie 9953913Sarchie/* Flags field flags */ 10070700Sjulian#define NGF_ORIG 0x00000000 /* the msg is the original request */ 10170700Sjulian#define NGF_RESP 0x00000001 /* the message is a response */ 10271849Sjulian 103163461Sglebius/* Type of a unique node ID. */ 104163461Sglebius#define ng_ID_t uint32_t 10553913Sarchie 10652419Sjulian/* 10752419Sjulian * Here we describe the "generic" messages that all nodes inherently 10852419Sjulian * understand. With the exception of NGM_TEXT_STATUS, these are handled 10952419Sjulian * automatically by the base netgraph code. 11052419Sjulian */ 11152419Sjulian 11252419Sjulian/* Generic message type cookie */ 113154265Sglebius#define NGM_GENERIC_COOKIE 1137070366 11452419Sjulian 115154265Sglebius/* Generic messages defined for this type cookie. */ 116154265Sglebiusenum { 117154265Sglebius NGM_SHUTDOWN = 1, /* Shut down node. */ 118154265Sglebius NGM_MKPEER = 2, /* Create and attach a peer node. */ 119154265Sglebius NGM_CONNECT = 3, /* Connect two nodes. */ 120154265Sglebius NGM_NAME = 4, /* Give a node a name. */ 121154265Sglebius NGM_RMHOOK = 5, /* Break a connection between two nodes. */ 12252419Sjulian 123154265Sglebius /* Get nodeinfo for target. */ 124154265Sglebius NGM_NODEINFO = (6|NGM_READONLY|NGM_HASREPLY), 125154265Sglebius /* Get list of hooks on node. */ 126154265Sglebius NGM_LISTHOOKS = (7|NGM_READONLY|NGM_HASREPLY), 127154265Sglebius /* List globally named nodes. */ 128154265Sglebius NGM_LISTNAMES = (8|NGM_READONLY|NGM_HASREPLY), 129154265Sglebius /* List all nodes. */ 130154265Sglebius NGM_LISTNODES = (9|NGM_READONLY|NGM_HASREPLY), 131154265Sglebius /* List installed node types. */ 132154265Sglebius NGM_LISTTYPES = (10|NGM_READONLY|NGM_HASREPLY), 133154265Sglebius /* (optional) Get text status. */ 134154265Sglebius NGM_TEXT_STATUS = (11|NGM_READONLY|NGM_HASREPLY), 135154265Sglebius /* Convert struct ng_mesg to ASCII. */ 136154265Sglebius NGM_BINARY2ASCII= (12|NGM_READONLY|NGM_HASREPLY), 137154265Sglebius /* Convert ASCII to struct ng_mesg. */ 138154265Sglebius NGM_ASCII2BINARY= (13|NGM_READONLY|NGM_HASREPLY), 139154265Sglebius /* (optional) Get/set text config. */ 140154265Sglebius NGM_TEXT_CONFIG = 14, 141154265Sglebius}; 142154265Sglebius 14369922Sjulian/* 14469922Sjulian * Flow control and intra node control messages. 14569922Sjulian * These are routed between nodes to allow flow control and to allow 14669922Sjulian * events to be passed around the graph. 14769922Sjulian * There will be some form of default handling for these but I 14869922Sjulian * do not yet know what it is.. 14969922Sjulian */ 15069922Sjulian 15169922Sjulian/* Generic message type cookie */ 15269922Sjulian#define NGM_FLOW_COOKIE 851672669 /* temp for debugging */ 15369922Sjulian 15469922Sjulian/* Upstream messages */ 15569922Sjulian#define NGM_LINK_IS_UP 32 /* e.g. carrier found - no data */ 15669922Sjulian#define NGM_LINK_IS_DOWN 33 /* carrier lost, includes queue state */ 15769922Sjulian#define NGM_HIGH_WATER_PASSED 34 /* includes queue state */ 15869922Sjulian#define NGM_LOW_WATER_PASSED 35 /* includes queue state */ 15969922Sjulian#define NGM_SYNC_QUEUE_STATE 36 /* sync response from sending packet */ 16069922Sjulian 16169922Sjulian/* Downstream messages */ 16269922Sjulian#define NGM_DROP_LINK 41 /* drop DTR, etc. - stay in the graph */ 16371902Sjulian#define NGM_RAISE_LINK 42 /* if you previously dropped it */ 16471902Sjulian#define NGM_FLUSH_QUEUE 43 /* no data */ 16570700Sjulian#define NGM_GET_BANDWIDTH (44|NGM_READONLY) /* either real or measured */ 16671902Sjulian#define NGM_SET_XMIT_Q_LIMITS 45 /* includes queue state */ 16770700Sjulian#define NGM_GET_XMIT_Q_LIMITS (46|NGM_READONLY) /* returns queue state */ 16871902Sjulian#define NGM_MICROMANAGE 47 /* We want sync. queue state 16970700Sjulian reply for each packet sent */ 17071902Sjulian#define NGM_SET_FLOW_MANAGER 48 /* send flow control here */ 17153913Sarchie/* Structure used for NGM_MKPEER */ 17252419Sjulianstruct ngm_mkpeer { 173125028Sharti char type[NG_TYPESIZ]; /* peer type */ 174125028Sharti char ourhook[NG_HOOKSIZ]; /* hook name */ 175125028Sharti char peerhook[NG_HOOKSIZ]; /* peer hook name */ 17652419Sjulian}; 17752419Sjulian 17853913Sarchie/* Keep this in sync with the above structure definition */ 17953913Sarchie#define NG_GENERIC_MKPEER_INFO() { \ 18053913Sarchie { "type", &ng_parse_typebuf_type }, \ 18153913Sarchie { "ourhook", &ng_parse_hookbuf_type }, \ 18253913Sarchie { "peerhook", &ng_parse_hookbuf_type }, \ 18397685Sarchie { NULL } \ 18453913Sarchie} 18553913Sarchie 18653913Sarchie/* Structure used for NGM_CONNECT */ 18752419Sjulianstruct ngm_connect { 188125028Sharti char path[NG_PATHSIZ]; /* peer path */ 189125028Sharti char ourhook[NG_HOOKSIZ]; /* hook name */ 190125028Sharti char peerhook[NG_HOOKSIZ]; /* peer hook name */ 19152419Sjulian}; 19252419Sjulian 19353913Sarchie/* Keep this in sync with the above structure definition */ 19453913Sarchie#define NG_GENERIC_CONNECT_INFO() { \ 19553913Sarchie { "path", &ng_parse_pathbuf_type }, \ 19653913Sarchie { "ourhook", &ng_parse_hookbuf_type }, \ 19753913Sarchie { "peerhook", &ng_parse_hookbuf_type }, \ 19897685Sarchie { NULL } \ 19953913Sarchie} 20053913Sarchie 20153913Sarchie/* Structure used for NGM_NAME */ 20252419Sjulianstruct ngm_name { 203125028Sharti char name[NG_NODESIZ]; /* node name */ 20452419Sjulian}; 20552419Sjulian 20653913Sarchie/* Keep this in sync with the above structure definition */ 20753913Sarchie#define NG_GENERIC_NAME_INFO() { \ 20853913Sarchie { "name", &ng_parse_nodebuf_type }, \ 20997685Sarchie { NULL } \ 21053913Sarchie} 21153913Sarchie 21253913Sarchie/* Structure used for NGM_RMHOOK */ 21352419Sjulianstruct ngm_rmhook { 214125028Sharti char ourhook[NG_HOOKSIZ]; /* hook name */ 21552419Sjulian}; 21652419Sjulian 21753913Sarchie/* Keep this in sync with the above structure definition */ 21853913Sarchie#define NG_GENERIC_RMHOOK_INFO() { \ 21953913Sarchie { "hook", &ng_parse_hookbuf_type }, \ 22097685Sarchie { NULL } \ 22153913Sarchie} 22253913Sarchie 22353913Sarchie/* Structure used for NGM_NODEINFO */ 22452419Sjulianstruct nodeinfo { 225125028Sharti char name[NG_NODESIZ]; /* node name (if any) */ 226125028Sharti char type[NG_TYPESIZ]; /* peer type */ 22752722Sjulian ng_ID_t id; /* unique identifier */ 22852419Sjulian u_int32_t hooks; /* number of active hooks */ 22952419Sjulian}; 23052419Sjulian 23153913Sarchie/* Keep this in sync with the above structure definition */ 23253913Sarchie#define NG_GENERIC_NODEINFO_INFO() { \ 23353913Sarchie { "name", &ng_parse_nodebuf_type }, \ 23453913Sarchie { "type", &ng_parse_typebuf_type }, \ 23564508Sarchie { "id", &ng_parse_hint32_type }, \ 23664508Sarchie { "hooks", &ng_parse_uint32_type }, \ 23797685Sarchie { NULL } \ 23853913Sarchie} 23953913Sarchie 24053913Sarchie/* Structure used for NGM_LISTHOOKS */ 24152419Sjulianstruct linkinfo { 242125028Sharti char ourhook[NG_HOOKSIZ]; /* hook name */ 243125028Sharti char peerhook[NG_HOOKSIZ]; /* peer hook */ 24452419Sjulian struct nodeinfo nodeinfo; 24552419Sjulian}; 24652419Sjulian 24753913Sarchie/* Keep this in sync with the above structure definition */ 24853913Sarchie#define NG_GENERIC_LINKINFO_INFO(nitype) { \ 24953913Sarchie { "ourhook", &ng_parse_hookbuf_type }, \ 25053913Sarchie { "peerhook", &ng_parse_hookbuf_type }, \ 25153913Sarchie { "nodeinfo", (nitype) }, \ 25297685Sarchie { NULL } \ 25353913Sarchie} 25453913Sarchie 25552419Sjulianstruct hooklist { 25652419Sjulian struct nodeinfo nodeinfo; /* node information */ 257121325Sharti struct linkinfo link[]; /* info about each hook */ 25852419Sjulian}; 25952419Sjulian 26053913Sarchie/* Keep this in sync with the above structure definition */ 26153913Sarchie#define NG_GENERIC_HOOKLIST_INFO(nitype,litype) { \ 26253913Sarchie { "nodeinfo", (nitype) }, \ 26353913Sarchie { "linkinfo", (litype) }, \ 26497685Sarchie { NULL } \ 26553913Sarchie} 26653913Sarchie 26753913Sarchie/* Structure used for NGM_LISTNAMES/NGM_LISTNODES */ 26852419Sjulianstruct namelist { 26952419Sjulian u_int32_t numnames; 270121325Sharti struct nodeinfo nodeinfo[]; 27152419Sjulian}; 27252419Sjulian 27353913Sarchie/* Keep this in sync with the above structure definition */ 27453913Sarchie#define NG_GENERIC_LISTNODES_INFO(niarraytype) { \ 27564508Sarchie { "numnames", &ng_parse_uint32_type }, \ 27653913Sarchie { "nodeinfo", (niarraytype) }, \ 27797685Sarchie { NULL } \ 27853913Sarchie} 27953913Sarchie 28053913Sarchie/* Structure used for NGM_LISTTYPES */ 28152419Sjulianstruct typeinfo { 282125028Sharti char type_name[NG_TYPESIZ]; /* name of type */ 283125028Sharti u_int32_t numnodes; /* number alive */ 28452419Sjulian}; 28552419Sjulian 28653913Sarchie/* Keep this in sync with the above structure definition */ 28753913Sarchie#define NG_GENERIC_TYPEINFO_INFO() { \ 28853913Sarchie { "typename", &ng_parse_typebuf_type }, \ 28964508Sarchie { "numnodes", &ng_parse_uint32_type }, \ 29097685Sarchie { NULL } \ 29153913Sarchie} 29253913Sarchie 29352419Sjulianstruct typelist { 29452419Sjulian u_int32_t numtypes; 295121325Sharti struct typeinfo typeinfo[]; 29652419Sjulian}; 29752419Sjulian 29853913Sarchie/* Keep this in sync with the above structure definition */ 29953913Sarchie#define NG_GENERIC_TYPELIST_INFO(tiarraytype) { \ 30064508Sarchie { "numtypes", &ng_parse_uint32_type }, \ 30153913Sarchie { "typeinfo", (tiarraytype) }, \ 30297685Sarchie { NULL } \ 30353913Sarchie} 30453913Sarchie 30569922Sjulianstruct ngm_bandwidth { 30669922Sjulian u_int64_t nominal_in; 30769922Sjulian u_int64_t seen_in; 30869922Sjulian u_int64_t nominal_out; 30969922Sjulian u_int64_t seen_out; 31069922Sjulian}; 31169922Sjulian 31269922Sjulian/* Keep this in sync with the above structure definition */ 31369922Sjulian#define NG_GENERIC_BANDWIDTH_INFO() { \ 31469922Sjulian { "nominal_in", &ng_parse_uint64_type }, \ 31569922Sjulian { "seen_in", &ng_parse_uint64_type }, \ 31669922Sjulian { "nominal_out", &ng_parse_uint64_type }, \ 31769922Sjulian { "seen_out", &ng_parse_uint64_type }, \ 31897685Sarchie { NULL } \ 31969922Sjulian} 32069922Sjulian 32152419Sjulian/* 32269922Sjulian * Information about a node's 'output' queue. 32369922Sjulian * This is NOT the netgraph input queueing mechanism, 32469922Sjulian * but rather any queue the node may implement internally 32569922Sjulian * This has to consider ALTQ if we are to work with it. 32669922Sjulian * As far as I can see, ALTQ counts PACKETS, not bytes. 32769922Sjulian * If ALTQ has several queues and one has passed a watermark 32869922Sjulian * we should have the priority of that queue be real (and not -1) 32969922Sjulian * XXX ALTQ stuff is just an idea..... 33069922Sjulian */ 33169922Sjulianstruct ngm_queue_state { 33269922Sjulian u_int queue_priority; /* maybe only low-pri is full. -1 = all*/ 33369922Sjulian u_int max_queuelen_bytes; 33469922Sjulian u_int max_queuelen_packets; 33569922Sjulian u_int low_watermark; 33669922Sjulian u_int high_watermark; 33769922Sjulian u_int current; 33869922Sjulian}; 33969922Sjulian 34069922Sjulian/* Keep this in sync with the above structure definition */ 34169922Sjulian#define NG_GENERIC_QUEUE_INFO() { \ 34269922Sjulian { "max_queuelen_bytes", &ng_parse_uint_type }, \ 34369922Sjulian { "max_queuelen_packets", &ng_parse_uint_type }, \ 34469922Sjulian { "high_watermark", &ng_parse_uint_type }, \ 34569922Sjulian { "low_watermark", &ng_parse_uint_type }, \ 34669922Sjulian { "current", &ng_parse_uint_type }, \ 34797685Sarchie { NULL } \ 34869922Sjulian} 34969922Sjulian 35069922Sjulian/* Tell a node who to send async flow control info to. */ 35169922Sjulianstruct flow_manager { 35269922Sjulian ng_ID_t id; /* unique identifier */ 35369922Sjulian}; 35469922Sjulian 35569922Sjulian/* Keep this in sync with the above structure definition */ 35669922Sjulian#define NG_GENERIC_FLOW_MANAGER_INFO() { \ 35769922Sjulian { "id", &ng_parse_hint32_type }, \ 35897685Sarchie { NULL } \ 35969922Sjulian} 36069922Sjulian 36169922Sjulian 36269922Sjulian/* 36352419Sjulian * For netgraph nodes that are somehow associated with file descriptors 36452419Sjulian * (e.g., a device that has a /dev entry and is also a netgraph node), 36552419Sjulian * we define a generic ioctl for requesting the corresponding nodeinfo 36652419Sjulian * structure and for assigning a name (if there isn't one already). 36752419Sjulian * 36852419Sjulian * For these to you need to also #include <sys/ioccom.h>. 36952419Sjulian */ 37052419Sjulian 37152419Sjulian#define NGIOCGINFO _IOR('N', 40, struct nodeinfo) /* get node info */ 37252419Sjulian#define NGIOCSETNAME _IOW('N', 41, struct ngm_name) /* set node name */ 37352419Sjulian 37455205Speter#ifdef _KERNEL 37552419Sjulian/* 37652419Sjulian * Allocate and initialize a netgraph message "msg" with "len" 37752419Sjulian * extra bytes of argument. Sets "msg" to NULL if fails. 37852419Sjulian * Does not initialize token. 37952419Sjulian */ 38052419Sjulian#define NG_MKMESSAGE(msg, cookie, cmdid, len, how) \ 38152419Sjulian do { \ 382184205Sdes (msg) = malloc(sizeof(struct ng_mesg) \ 38370700Sjulian + (len), M_NETGRAPH_MSG, (how) | M_ZERO); \ 38452419Sjulian if ((msg) == NULL) \ 38552419Sjulian break; \ 38652419Sjulian (msg)->header.version = NG_VERSION; \ 38752419Sjulian (msg)->header.typecookie = (cookie); \ 38852419Sjulian (msg)->header.cmd = (cmdid); \ 38952419Sjulian (msg)->header.arglen = (len); \ 39052419Sjulian strncpy((msg)->header.cmdstr, #cmdid, \ 39152419Sjulian sizeof((msg)->header.cmdstr) - 1); \ 39252419Sjulian } while (0) 39352419Sjulian 39452419Sjulian/* 39552419Sjulian * Allocate and initialize a response "rsp" to a message "msg" 39652419Sjulian * with "len" extra bytes of argument. Sets "rsp" to NULL if fails. 39752419Sjulian */ 39852419Sjulian#define NG_MKRESPONSE(rsp, msg, len, how) \ 39952419Sjulian do { \ 400184205Sdes (rsp) = malloc(sizeof(struct ng_mesg) \ 40170700Sjulian + (len), M_NETGRAPH_MSG, (how) | M_ZERO); \ 40252419Sjulian if ((rsp) == NULL) \ 40352419Sjulian break; \ 40452419Sjulian (rsp)->header.version = NG_VERSION; \ 40552419Sjulian (rsp)->header.arglen = (len); \ 40652419Sjulian (rsp)->header.token = (msg)->header.token; \ 40752419Sjulian (rsp)->header.typecookie = (msg)->header.typecookie; \ 40852419Sjulian (rsp)->header.cmd = (msg)->header.cmd; \ 40952419Sjulian bcopy((msg)->header.cmdstr, (rsp)->header.cmdstr, \ 41052419Sjulian sizeof((rsp)->header.cmdstr)); \ 41152419Sjulian (rsp)->header.flags |= NGF_RESP; \ 41252419Sjulian } while (0) 413145324Sglebius 414145324Sglebius/* 415145324Sglebius * Make a copy of message. Sets "copy" to NULL if fails. 416145324Sglebius */ 417145324Sglebius#define NG_COPYMESSAGE(copy, msg, how) \ 418145324Sglebius do { \ 419184205Sdes (copy) = malloc(sizeof(struct ng_mesg) \ 420184205Sdes + (msg)->header.arglen, M_NETGRAPH_MSG, (how) | M_ZERO); \ 421145324Sglebius if ((copy) == NULL) \ 422145324Sglebius break; \ 423145324Sglebius (copy)->header.version = NG_VERSION; \ 424145324Sglebius (copy)->header.arglen = (msg)->header.arglen; \ 425145324Sglebius (copy)->header.token = (msg)->header.token; \ 426145324Sglebius (copy)->header.typecookie = (msg)->header.typecookie; \ 427145324Sglebius (copy)->header.cmd = (msg)->header.cmd; \ 428145324Sglebius (copy)->header.flags = (msg)->header.flags; \ 429145324Sglebius bcopy((msg)->header.cmdstr, (copy)->header.cmdstr, \ 430145324Sglebius sizeof((copy)->header.cmdstr)); \ 431145324Sglebius if ((msg)->header.arglen > 0) \ 432145324Sglebius bcopy((msg)->data, (copy)->data, (msg)->header.arglen); \ 433145324Sglebius } while (0) 434145324Sglebius 43555205Speter#endif /* _KERNEL */ 43652419Sjulian 43752419Sjulian#endif /* _NETGRAPH_NG_MESSAGE_H_ */ 438