Annotation of embedaddon/mpd/src/iface.h, revision 1.1
1.1 ! misho 1:
! 2: /*
! 3: * iface.h
! 4: *
! 5: * Written by Archie Cobbs <archie@freebsd.org>
! 6: * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
! 7: * See ``COPYRIGHT.whistle''
! 8: */
! 9:
! 10: #ifndef _IFACE_H_
! 11: #define _IFACE_H_
! 12:
! 13: #include <sys/types.h>
! 14: #include <sys/time.h>
! 15: #include <sys/ioctl.h>
! 16: #include <net/if_dl.h>
! 17: #include <net/bpf.h>
! 18: #include <netinet/ip.h>
! 19: #include <netinet/tcp.h>
! 20: #include <netgraph/ng_message.h>
! 21: #include <netgraph/ng_ppp.h>
! 22: #ifdef USE_NG_BPF
! 23: #include <netgraph/ng_bpf.h>
! 24: #endif
! 25: #include "mbuf.h"
! 26: #include "timer.h"
! 27: #ifdef USE_NG_NAT
! 28: #include "nat.h"
! 29: #endif
! 30: #include "vars.h"
! 31:
! 32: /*
! 33: * DEFINITIONS
! 34: */
! 35:
! 36: #define IFACE_MAX_ROUTES 32
! 37: #define IFACE_MAX_SCRIPT 128
! 38:
! 39: #define IFACE_IDLE_SPLIT 4
! 40:
! 41: #define IFACE_MIN_MTU 296
! 42: #define IFACE_MAX_MTU 65536
! 43:
! 44: /*
! 45: * We are in a liberal position about MSS
! 46: * (RFC 879, section 7).
! 47: */
! 48: #define MAXMSS(mtu) (mtu - sizeof(struct ip) - sizeof(struct tcphdr))
! 49:
! 50: /* Configuration options */
! 51:
! 52: enum {
! 53: IFACE_CONF_ONDEMAND,
! 54: IFACE_CONF_PROXY,
! 55: IFACE_CONF_TCPMSSFIX,
! 56: IFACE_CONF_TEE,
! 57: IFACE_CONF_NAT,
! 58: IFACE_CONF_NETFLOW_IN,
! 59: IFACE_CONF_NETFLOW_OUT,
! 60: IFACE_CONF_NETFLOW_ONCE,
! 61: IFACE_CONF_IPACCT
! 62: };
! 63:
! 64: /* Dial-on-demand packet cache */
! 65: struct dodcache {
! 66: Mbuf pkt;
! 67: time_t ts;
! 68: u_short proto;
! 69: };
! 70:
! 71: #define MAX_DOD_CACHE_DELAY 30
! 72:
! 73: struct ifaceconf {
! 74: struct u_range self_addr; /* Interface's IP address */
! 75: struct u_addr peer_addr; /* Peer's IP address */
! 76: struct u_addr self_ipv6_addr;
! 77: struct u_addr peer_ipv6_addr;
! 78: u_char self_addr_force;
! 79: u_char peer_addr_force;
! 80: u_char self_ipv6_addr_force;
! 81: u_char peer_ipv6_addr_force;
! 82: char ifname[IFNAMSIZ]; /* Name of my interface */
! 83: #ifdef SIOCSIFDESCR
! 84: char *ifdescr; /* Interface description*/
! 85: #endif
! 86: #ifdef SIOCAIFGROUP
! 87: char ifgroup[IFNAMSIZ]; /* Group of my interface */
! 88: #endif
! 89: };
! 90:
! 91: struct ifaceroute {
! 92: struct u_range dest; /* Destination of route */
! 93: u_char ok; /* Route installed OK */
! 94: SLIST_ENTRY(ifaceroute) next;
! 95: };
! 96: typedef struct ifaceroute *IfaceRoute;
! 97:
! 98: struct ifacestate {
! 99: char ifname[IFNAMSIZ]; /* Name of my interface */
! 100: char ngname[IFNAMSIZ]; /* Name of my Netgraph node */
! 101: uint ifindex; /* System interface index */
! 102: #ifdef SIOCSIFDESCR
! 103: char *ifdescr; /* Interface description*/
! 104: #endif
! 105: struct ifaceconf conf;
! 106: u_char traffic[IFACE_IDLE_SPLIT]; /* Mark any traffic */
! 107: u_short mtu; /* Interface MTU */
! 108: u_short max_mtu; /* Configured maximum MTU */
! 109: struct optinfo options; /* Configuration options */
! 110: u_int idle_timeout; /* Idle timeout */
! 111: u_int session_timeout; /* Session timeout */
! 112: SLIST_HEAD(, ifaceroute) routes;
! 113: #ifdef USE_IPFW
! 114: struct acl *tables; /* List of IP added to tables by iface */
! 115: #endif
! 116: struct u_range self_addr; /* Interface's IP address */
! 117: struct u_addr peer_addr; /* Peer's IP address */
! 118: struct u_addr proxy_addr; /* Proxied IP address */
! 119: struct u_addr self_ipv6_addr;
! 120: struct u_addr peer_ipv6_addr;
! 121: struct pppTimer idleTimer; /* Idle timer */
! 122: struct pppTimer sessionTimer; /* Session timer */
! 123: char up_script[IFACE_MAX_SCRIPT];
! 124: char down_script[IFACE_MAX_SCRIPT];
! 125: #ifdef USE_NG_BPF
! 126: ng_ID_t limitID; /* ID of limit (bpf) node */
! 127: SLIST_HEAD(, svcs) ss[ACL_DIRS]; /* Where to get service stats */
! 128: struct svcstat prevstats; /* Stats from gone layers */
! 129: #endif
! 130: time_t last_up; /* Time this iface last got up */
! 131: u_char open:1; /* In an open state */
! 132: u_char dod:1; /* Interface flagged -link0 */
! 133: u_char up:1; /* interface is up */
! 134: u_char ip_up:1; /* IP interface is up */
! 135: u_char ipv6_up:1; /* IPv6 interface is up */
! 136: u_char nat_up:1; /* NAT is up */
! 137: u_char tee_up:1; /* TEE is up */
! 138: u_char tee6_up:1; /* TEE6 is up */
! 139: u_char nfin_up:1; /* NFIN is up */
! 140: u_char nfout_up:1; /* NFOUT is up */
! 141: u_char mss_up:1; /* MSS is up */
! 142: u_char ipacct_up:1; /* IPACCT is up */
! 143:
! 144: struct dodcache dodCache; /* Dial-on-demand cache */
! 145:
! 146: #ifdef USE_NG_NAT
! 147: struct natstate nat; /* NAT config */
! 148: #endif
! 149:
! 150: struct ng_ppp_link_stat64 idleStats; /* Statistics for idle timeout */
! 151: };
! 152: typedef struct ifacestate *IfaceState;
! 153:
! 154: #ifdef USE_IPFW
! 155: struct acl_pool { /* Pool of used ACL numbers */
! 156: char ifname[IFNAMSIZ]; /* Name of interface */
! 157: unsigned short acl_number; /* ACL number given by RADIUS unique on this interface */
! 158: unsigned short real_number; /* Real ACL number unique on this system */
! 159: struct acl_pool *next;
! 160: };
! 161: #endif
! 162:
! 163: /*
! 164: * VARIABLES
! 165: */
! 166:
! 167: extern const struct cmdtab IfaceSetCmds[];
! 168:
! 169: #ifdef USE_IPFW
! 170: extern struct acl_pool * rule_pool; /* Pointer to the first element in the list of rules */
! 171: extern struct acl_pool * pipe_pool; /* Pointer to the first element in the list of pipes */
! 172: extern struct acl_pool * queue_pool; /* Pointer to the first element in the list of queues */
! 173: extern struct acl_pool * table_pool; /* Pointer to the first element in the list of tables */
! 174: extern int rule_pool_start; /* Initial number of ipfw rules pool */
! 175: extern int pipe_pool_start; /* Initial number of ipfw dummynet pipe pool */
! 176: extern int queue_pool_start; /* Initial number of ipfw dummynet queue pool */
! 177: extern int table_pool_start; /* Initial number of ipfw tables pool */
! 178: #endif
! 179:
! 180: /*
! 181: * FUNCTIONS
! 182: */
! 183:
! 184: extern void IfaceInit(Bund b);
! 185: extern void IfaceInst(Bund b, Bund bt);
! 186: extern void IfaceDestroy(Bund b);
! 187: extern void IfaceOpen(Bund b);
! 188: extern void IfaceClose(Bund b);
! 189: extern int IfaceOpenCmd(Context ctx);
! 190: extern int IfaceCloseCmd(Context ctx);
! 191: extern int IfaceIpIfaceUp(Bund b, int ready);
! 192: extern void IfaceIpIfaceDown(Bund b);
! 193: extern int IfaceIpv6IfaceUp(Bund b, int ready);
! 194: extern void IfaceIpv6IfaceDown(Bund b);
! 195: extern void IfaceUp(Bund b, int ready);
! 196: extern void IfaceDown(Bund b);
! 197: extern int IfaceStat(Context ctx, int ac, char *av[], void *arg);
! 198:
! 199: extern void IfaceListenInput(Bund b, int proto, Mbuf pkt);
! 200: #ifndef USE_NG_TCPMSS
! 201: extern void IfaceCorrectMSS(Mbuf pkt, uint16_t maxmss);
! 202: #endif
! 203: extern void IfaceSetMTU(Bund b, int mtu);
! 204: extern void IfaceChangeFlags(Bund b, int clear, int set);
! 205: extern int IfaceChangeAddr(Bund b, int add, struct u_range *self, struct u_addr *peer);
! 206: extern int IfaceSetRoute(Bund b, int cmd, struct u_range *dst, struct u_addr *gw);
! 207:
! 208: #ifdef USE_NG_BPF
! 209: extern void IfaceGetStats(Bund b, struct svcstat *stat);
! 210: extern void IfaceAddStats(struct svcstat *stat1, struct svcstat *stat2);
! 211: extern void IfaceFreeStats(struct svcstat *stat);
! 212: #endif
! 213:
! 214: #endif
! 215:
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