diff options
author | darrenr <darrenr@FreeBSD.org> | 1997-05-25 15:49:17 +0000 |
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committer | darrenr <darrenr@FreeBSD.org> | 1997-05-25 15:49:17 +0000 |
commit | c4dc16ff2222e864e5ab4d236e0de3a2cb5b54da (patch) | |
tree | 2fe3b9e02fbe60cac6a9f80dbc75962a8b223760 /contrib/ipfilter/ip_proxy.h | |
parent | e0610b5498ab54082ddadbfebd47280245e3e0f8 (diff) | |
download | FreeBSD-src-c4dc16ff2222e864e5ab4d236e0de3a2cb5b54da.zip FreeBSD-src-c4dc16ff2222e864e5ab4d236e0de3a2cb5b54da.tar.gz |
Import version 3.2alpha7
(they're currently in src/contrib/ipfilter/ipfilter/ by mistake, if someone
from core would like to delete that directory with three files as I'm not
meant to do that :)
Diffstat (limited to 'contrib/ipfilter/ip_proxy.h')
-rw-r--r-- | contrib/ipfilter/ip_proxy.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/ipfilter/ip_proxy.h b/contrib/ipfilter/ip_proxy.h new file mode 100644 index 0000000..2d71754 --- /dev/null +++ b/contrib/ipfilter/ip_proxy.h @@ -0,0 +1,89 @@ +/* + * (C)opyright 1997 by Darren Reed. + * + * Redistribution and use in source and binary forms are permitted + * provided that this notice is preserved and due credit is given + * to the original author and the contributors. + * + * $Id: ip_proxy.h,v 2.0.2.2 1997/05/24 07:36:44 darrenr Exp $ + */ + +#ifndef __IP_PROXY_H__ +#define __IP_PROXY_H__ + +#ifndef SOLARIS +#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4))) +#endif + +#define APR_LABELLEN 16 +#define AP_SESS_SIZE 53 + +struct nat; + +typedef struct ap_tcp { + u_short apt_sport; /* source port */ + u_short apt_dport; /* destination port */ + short apt_seqoff; /* sequence # difference */ + short apt_ackoff; /* ack # difference */ + tcp_seq apt_after; /* don't change seq-off until after this */ + char apt_state[2]; /* connection state */ +} ap_tcp_t; + +typedef struct ap_udp { + u_short apu_sport; /* source port */ + u_short apu_dport; /* destination port */ +} ap_udp_t; + +typedef struct ap_session { + struct aproxy *aps_apr; + struct in_addr aps_src; /* source IP# */ + struct in_addr aps_dst; /* destination IP# */ + u_char aps_p; /* protocol */ + union { + struct ap_tcp apu_tcp; + struct ap_udp apu_udp; + } aps_un; + u_int aps_flags; + QUAD_T aps_bytes; /* bytes sent */ + QUAD_T aps_pkts; /* packets sent */ + time_t aps_tout; /* time left before expiring */ + void *aps_data; /* private data */ + int aps_psiz; /* size of private data */ + struct ap_session *aps_next; +} ap_session_t ; + +#define aps_sport aps_un.apu_tcp.apt_sport +#define aps_dport aps_un.apu_tcp.apt_dport +#define aps_seqoff aps_un.apu_tcp.apt_seqoff +#define aps_ackoff aps_un.apu_tcp.apt_ackoff +#define aps_sumoff aps_un.apu_tcp.apt_sumoff +#define aps_state aps_un.apu_tcp.apt_state +#define aps_after aps_un.apu_tcp.apt_after + + +typedef struct aproxy { + char apr_label[APR_LABELLEN]; /* Proxy label # */ + char apr_p; /* protocol */ + int apr_ref; /* +1 per rule referencing it */ + int apr_flags; + int (* apr_init) __P((fr_info_t *, ip_t *, tcphdr_t *, + ap_session_t *, struct nat *)); + int (* apr_inpkt) __P((fr_info_t *, ip_t *, tcphdr_t *, + ap_session_t *, struct nat *)); + int (* apr_outpkt) __P((fr_info_t *, ip_t *, tcphdr_t *, + ap_session_t *, struct nat *)); +} aproxy_t; + +#define APR_DELETE 1 + + +extern ap_session_t *ap_sess_tab[AP_SESS_SIZE]; +extern aproxy_t ap_proxies[]; + +extern void ap_unload __P((void)); +extern void ap_free __P((aproxy_t *)); +extern void aps_free __P((ap_session_t *)); +extern int ap_check __P((ip_t *, tcphdr_t *, fr_info_t *, struct nat *)); +extern aproxy_t *ap_match __P((char, char *)); + +#endif /* __IP_PROXY_H__ */ |