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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-09 22:42:09 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-10 09:06:58 +0200 |
commit | bceabc95c1c85d793200446fa85f1ddc6313ea29 (patch) | |
tree | 973c8bd8deca9fd69913f2895cc91e0e6114d46c /freebsd/sys/net/if_sppp.h | |
parent | Add FreeBSD sources as a submodule (diff) | |
download | rtems-libbsd-bceabc95c1c85d793200446fa85f1ddc6313ea29.tar.bz2 |
Move files to match FreeBSD layout
Diffstat (limited to 'freebsd/sys/net/if_sppp.h')
-rw-r--r-- | freebsd/sys/net/if_sppp.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/freebsd/sys/net/if_sppp.h b/freebsd/sys/net/if_sppp.h new file mode 100644 index 00000000..ed406b55 --- /dev/null +++ b/freebsd/sys/net/if_sppp.h @@ -0,0 +1,234 @@ +/* + * Defines for synchronous PPP/Cisco/Frame Relay link level subroutines. + */ +/*- + * Copyright (C) 1994-2000 Cronyx Engineering. + * Author: Serge Vakulenko, <vak@cronyx.ru> + * + * Heavily revamped to conform to RFC 1661. + * Copyright (C) 1997, Joerg Wunsch. + * + * This software is distributed with NO WARRANTIES, not even the implied + * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * Authors grant any other persons or organizations permission to use + * or modify this software as long as this message is kept with the software, + * all derivative works or modified versions. + * + * From: Version 2.0, Fri Oct 6 20:39:21 MSK 1995 + * + * $FreeBSD$ + */ + +#ifndef _NET_IF_SPPP_HH_ +#define _NET_IF_SPPP_HH_ 1 + +#define IDX_LCP 0 /* idx into state table */ + +struct slcp { + u_long opts; /* LCP options to send (bitfield) */ + u_long magic; /* local magic number */ + u_long mru; /* our max receive unit */ + u_long their_mru; /* their max receive unit */ + u_long protos; /* bitmask of protos that are started */ + u_char echoid; /* id of last keepalive echo request */ + /* restart max values, see RFC 1661 */ + int timeout; + int max_terminate; + int max_configure; + int max_failure; +}; + +#define IDX_IPCP 1 /* idx into state table */ +#define IDX_IPV6CP 2 /* idx into state table */ + +struct sipcp { + u_long opts; /* IPCP options to send (bitfield) */ + u_int flags; +#define IPCP_HISADDR_SEEN 1 /* have seen his address already */ +#define IPCP_MYADDR_DYN 2 /* my address is dynamically assigned */ +#define IPCP_MYADDR_SEEN 4 /* have seen his address already */ +#ifdef notdef +#define IPV6CP_MYIFID_DYN 8 /* my ifid is dynamically assigned */ +#endif +#define IPV6CP_MYIFID_SEEN 0x10 /* have seen his ifid already */ +#define IPCP_VJ 0x20 /* can use VJ compression */ + int max_state; /* VJ: Max-Slot-Id */ + int compress_cid; /* VJ: Comp-Slot-Id */ +}; + +#define AUTHNAMELEN 64 +#define AUTHKEYLEN 16 + +struct sauth { + u_short proto; /* authentication protocol to use */ + u_short flags; +#define AUTHFLAG_NOCALLOUT 1 /* do not require authentication on */ + /* callouts */ +#define AUTHFLAG_NORECHALLENGE 2 /* do not re-challenge CHAP */ + u_char name[AUTHNAMELEN]; /* system identification name */ + u_char secret[AUTHKEYLEN]; /* secret password */ + u_char challenge[AUTHKEYLEN]; /* random challenge */ +}; + +#define IDX_PAP 3 +#define IDX_CHAP 4 + +#define IDX_COUNT (IDX_CHAP + 1) /* bump this when adding cp's! */ + +/* + * Don't change the order of this. Ordering the phases this way allows + * for a comparision of ``pp_phase >= PHASE_AUTHENTICATE'' in order to + * know whether LCP is up. + */ +enum ppp_phase { + PHASE_DEAD, PHASE_ESTABLISH, PHASE_TERMINATE, + PHASE_AUTHENTICATE, PHASE_NETWORK +}; + +#define PP_MTU 1500 /* default/minimal MRU */ +#define PP_MAX_MRU 2048 /* maximal MRU we want to negotiate */ + +/* + * This is a cut down struct sppp (see below) that can easily be + * exported to/ imported from userland without the need to include + * dozens of kernel-internal header files. It is used by the + * SPPPIO[GS]DEFS ioctl commands below. + */ +struct sppp_parms { + enum ppp_phase pp_phase; /* phase we're currently in */ + int enable_vj; /* VJ header compression enabled */ + int enable_ipv6; /* + * Enable IPv6 negotiations -- only + * needed since each IPv4 i/f auto- + * matically gets an IPv6 address + * assigned, so we can't use this as + * a decision. + */ + struct slcp lcp; /* LCP params */ + struct sipcp ipcp; /* IPCP params */ + struct sipcp ipv6cp; /* IPv6CP params */ + struct sauth myauth; /* auth params, i'm peer */ + struct sauth hisauth; /* auth params, i'm authenticator */ +}; + +/* + * Definitions to pass struct sppp_parms data down into the kernel + * using the SIOC[SG]IFGENERIC ioctl interface. + * + * In order to use this, create a struct spppreq, fill in the cmd + * field with SPPPIOGDEFS, and put the address of this structure into + * the ifr_data portion of a struct ifreq. Pass this struct to a + * SIOCGIFGENERIC ioctl. Then replace the cmd field by SPPPIOSDEFS, + * modify the defs field as desired, and pass the struct ifreq now + * to a SIOCSIFGENERIC ioctl. + */ + +#define SPPPIOGDEFS ((caddr_t)(('S' << 24) + (1 << 16) +\ + sizeof(struct sppp_parms))) +#define SPPPIOSDEFS ((caddr_t)(('S' << 24) + (2 << 16) +\ + sizeof(struct sppp_parms))) + +struct spppreq { + int cmd; + struct sppp_parms defs; +}; + +#ifdef _KERNEL +struct sppp { + struct ifnet *pp_ifp; /* network interface data */ + struct ifqueue pp_fastq; /* fast output queue */ + struct ifqueue pp_cpq; /* PPP control protocol queue */ + struct sppp *pp_next; /* next interface in keepalive list */ + u_int pp_mode; /* major protocol modes (cisco/ppp/...) */ + u_int pp_flags; /* sub modes */ + u_short pp_alivecnt; /* keepalive packets counter */ + u_short pp_loopcnt; /* loopback detection counter */ + u_long pp_seq[IDX_COUNT]; /* local sequence number */ + u_long pp_rseq[IDX_COUNT]; /* remote sequence number */ + enum ppp_phase pp_phase; /* phase we're currently in */ + int state[IDX_COUNT]; /* state machine */ + u_char confid[IDX_COUNT]; /* id of last configuration request */ + int rst_counter[IDX_COUNT]; /* restart counter */ + int fail_counter[IDX_COUNT]; /* negotiation failure counter */ + int confflags; /* administrative configuration flags */ +#define CONF_ENABLE_VJ 0x01 /* VJ header compression enabled */ +#define CONF_ENABLE_IPV6 0x02 /* IPv6 administratively enabled */ + time_t pp_last_recv; /* time last packet has been received */ + time_t pp_last_sent; /* time last packet has been sent */ + struct callout ch[IDX_COUNT]; /* per-proto and if callouts */ + struct callout pap_my_to_ch; /* PAP needs one more... */ + struct callout keepalive_callout; /* keepalive callout */ + struct slcp lcp; /* LCP params */ + struct sipcp ipcp; /* IPCP params */ + struct sipcp ipv6cp; /* IPv6CP params */ + struct sauth myauth; /* auth params, i'm peer */ + struct sauth hisauth; /* auth params, i'm authenticator */ + struct slcompress *pp_comp; /* for VJ compression */ + u_short fr_dlci; /* Frame Relay DLCI number, 16..1023 */ + u_char fr_status; /* PVC status, active/new/delete */ + /* + * These functions are filled in by sppp_attach(), and are + * expected to be used by the lower layer (hardware) drivers + * in order to communicate the (un)availability of the + * communication link. Lower layer drivers that are always + * ready to communicate (like hardware HDLC) can shortcut + * pp_up from pp_tls, and pp_down from pp_tlf. + */ + void (*pp_up)(struct sppp *sp); + void (*pp_down)(struct sppp *sp); + /* + * These functions need to be filled in by the lower layer + * (hardware) drivers if they request notification from the + * PPP layer whether the link is actually required. They + * correspond to the tls and tlf actions. + */ + void (*pp_tls)(struct sppp *sp); + void (*pp_tlf)(struct sppp *sp); + /* + * These (optional) functions may be filled by the hardware + * driver if any notification of established connections + * (currently: IPCP up) is desired (pp_con) or any internal + * state change of the interface state machine should be + * signaled for monitoring purposes (pp_chg). + */ + void (*pp_con)(struct sppp *sp); + void (*pp_chg)(struct sppp *sp, int new_state); + /* These two fields are for use by the lower layer */ + void *pp_lowerp; + int pp_loweri; + /* Lock */ + struct mtx mtx; + /* if_start () wrapper */ + void (*if_start) (struct ifnet *); + struct callout ifstart_callout; /* if_start () scheduler */ +}; +#define IFP2SP(ifp) ((struct sppp *)(ifp)->if_l2com) +#define SP2IFP(sp) ((sp)->pp_ifp) + +/* bits for pp_flags */ +#define PP_KEEPALIVE 0x01 /* use keepalive protocol */ +#define PP_FR 0x04 /* use Frame Relay protocol instead of PPP */ + /* 0x04 was PP_TIMO */ +#define PP_CALLIN 0x08 /* we are being called */ +#define PP_NEEDAUTH 0x10 /* remote requested authentication */ + +void sppp_attach (struct ifnet *ifp); +void sppp_detach (struct ifnet *ifp); +void sppp_input (struct ifnet *ifp, struct mbuf *m); +int sppp_ioctl (struct ifnet *ifp, u_long cmd, void *data); +struct mbuf *sppp_dequeue (struct ifnet *ifp); +struct mbuf *sppp_pick(struct ifnet *ifp); +int sppp_isempty (struct ifnet *ifp); +void sppp_flush (struct ifnet *ifp); + +/* Internal functions */ +void sppp_fr_input (struct sppp *sp, struct mbuf *m); +struct mbuf *sppp_fr_header (struct sppp *sp, struct mbuf *m, int fam); +void sppp_fr_keepalive (struct sppp *sp); +void sppp_get_ip_addrs(struct sppp *sp, u_long *src, u_long *dst, + u_long *srcmask); + +#endif + +#endif /* _NET_IF_SPPP_HH_ */ |