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proc
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cwd
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usr
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include
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linux
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netfilter
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Filename :
nf_osf.h
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#ifndef _NF_OSF_H #define _NF_OSF_H #include <linux/types.h> #define MAXGENRELEN 32 #define NF_OSF_GENRE (1 << 0) #define NF_OSF_TTL (1 << 1) #define NF_OSF_LOG (1 << 2) #define NF_OSF_INVERT (1 << 3) #define NF_OSF_LOGLEVEL_ALL 0 /* log all matched fingerprints */ #define NF_OSF_LOGLEVEL_FIRST 1 /* log only the first matced fingerprint */ #define NF_OSF_LOGLEVEL_ALL_KNOWN 2 /* do not log unknown packets */ #define NF_OSF_TTL_TRUE 0 /* True ip and fingerprint TTL comparison */ /* Do not compare ip and fingerprint TTL at all */ #define NF_OSF_TTL_NOCHECK 2 /* Wildcard MSS (kind of). * It is used to implement a state machine for the different wildcard values * of the MSS and window sizes. */ struct nf_osf_wc { __u32 wc; __u32 val; }; /* This struct represents IANA options * http://www.iana.org/assignments/tcp-parameters */ struct nf_osf_opt { __u16 kind, length; struct nf_osf_wc wc; }; struct nf_osf_info { char genre[MAXGENRELEN]; __u32 len; __u32 flags; __u32 loglevel; __u32 ttl; }; struct nf_osf_user_finger { struct nf_osf_wc wss; __u8 ttl, df; __u16 ss, mss; __u16 opt_num; char genre[MAXGENRELEN]; char version[MAXGENRELEN]; char subtype[MAXGENRELEN]; /* MAX_IPOPTLEN is maximum if all options are NOPs or EOLs */ struct nf_osf_opt opt[MAX_IPOPTLEN]; }; struct nf_osf_nlmsg { struct nf_osf_user_finger f; struct iphdr ip; struct tcphdr tcp; }; /* Defines for IANA option kinds */ enum iana_options { OSFOPT_EOL = 0, /* End of options */ OSFOPT_NOP, /* NOP */ OSFOPT_MSS, /* Maximum segment size */ OSFOPT_WSO, /* Window scale option */ OSFOPT_SACKP, /* SACK permitted */ OSFOPT_SACK, /* SACK */ OSFOPT_ECHO, OSFOPT_ECHOREPLY, OSFOPT_TS, /* Timestamp option */ OSFOPT_POCP, /* Partial Order Connection Permitted */ OSFOPT_POSP, /* Partial Order Service Profile */ /* Others are not used in the current OSF */ OSFOPT_EMPTY = 255, }; #endif /* _NF_OSF_H */