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krb5_auth_con_genaddrs (3)
  • >> krb5_auth_con_genaddrs (3) ( FreeBSD man: Библиотечные вызовы )

  • BSD mandoc
    HEIMDAL  

    NAME

    krb5_auth_context
    
     
    krb5_auth_con_init
    
     
    krb5_auth_con_free
    
     
    krb5_auth_con_setflags
    
     
    krb5_auth_con_getflags
    
     
    krb5_auth_con_setaddrs
    
     
    krb5_auth_con_setaddrs_from_fd
    
     
    krb5_auth_con_getaddrs
    
     
    krb5_auth_con_genaddrs
    
     
    krb5_auth_con_getkey
    
     
    krb5_auth_con_setkey
    
     
    krb5_auth_con_getuserkey
    
     
    krb5_auth_con_setuserkey
    
     
    krb5_auth_con_getlocalsubkey
    
     
    krb5_auth_con_setlocalsubkey
    
     
    krb5_auth_con_getremotesubkey
    
     
    krb5_auth_con_setremotesubkey
    
     
    krb5_auth_setcksumtype
    
     
    krb5_auth_getcksumtype
    
     
    krb5_auth_setkeytype
    
     
    krb5_auth_getkeytype
    
     
    krb5_auth_getlocalseqnumber
    
     
    krb5_auth_setlocalseqnumber
    
     
    krb5_auth_getremoteseqnumber
    
     
    krb5_auth_setremoteseqnumber
    
     
    krb5_auth_getauthenticator
    
     
    krb5_auth_con_getrcache
    
     
    krb5_auth_con_setrcache
    
     
    krb5_auth_con_initivector
    
     
    krb5_auth_con_setivector
    
     - manage authentication on connection level
    
     
    

    LIBRARY

    Kerberos 5 Library (libkrb5, -lkrb5)
     
    

    SYNOPSIS

       #include <krb5.h>
    krb5_error_code Fo krb5_auth_con_init Fa krb5_context context Fa krb5_auth_context *auth_context Fc Ft void Fo krb5_auth_con_free Fa krb5_context context Fa krb5_auth_context auth_context Fc Ft krb5_error_code Fo krb5_auth_con_setflags Fa krb5_context context Fa krb5_auth_context auth_context Fa int32_t flags Fc Ft krb5_error_code Fo krb5_auth_con_getflags Fa krb5_context context Fa krb5_auth_context auth_context Fa int32_t *flags Fc Ft krb5_error_code Fo krb5_auth_con_setaddrs Fa krb5_context context Fa krb5_auth_context auth_context Fa krb5_address *local_addr Fa krb5_address *remote_addr Fc Ft krb5_error_code Fo krb5_auth_con_getaddrs Fa krb5_context context Fa krb5_auth_context auth_context Fa krb5_address **local_addr Fa krb5_address **remote_addr Fc Ft krb5_error_code Fo krb5_auth_con_genaddrs Fa krb5_context context Fa krb5_auth_context auth_context Fa int fd Fa int flags Fc Ft krb5_error_code Fo krb5_auth_con_setaddrs_from_fd Fa krb5_context context Fa krb5_auth_context auth_context Fa void *p_fd Fc Ft krb5_error_code Fo krb5_auth_con_getkey Fa krb5_context context Fa krb5_auth_context auth_context Fa krb5_keyblock **keyblock Fc Ft krb5_error_code Fo krb5_auth_con_getlocalsubkey Fa krb5_context context Fa krb5_auth_context auth_context Fa krb5_keyblock **keyblock Fc Ft krb5_error_code Fo krb5_auth_con_getremotesubkey Fa krb5_context context Fa krb5_auth_context auth_context Fa krb5_keyblock **keyblock Fc Ft krb5_error_code Fo krb5_auth_con_initivector Fa krb5_context context Fa krb5_auth_context auth_context Fc Ft krb5_error_code Fo krb5_auth_con_setivector Fa krb5_context context Fa krb5_auth_context *auth_context Fa krb5_pointer ivector Fc  

    DESCRIPTION

    The krb5_auth_context structure holds all context related to an authenticated connection, in a similar way to krb5_context that holds the context for the thread or process. krb5_auth_context is used by various functions that are directly related to authentication between the server/client. Example of data that this structure contains are various flags, addresses of client and server, port numbers, keyblocks (and subkeys), sequence numbers, replay cache, and checksum-type.

    krb5_auth_con_init ();
    allocates and initializes the krb5_auth_context structure. Default values can be changed with krb5_auth_con_setcksumtype ();
    and krb5_auth_con_setflags (.);
    The auth_context structure must be freed by krb5_auth_con_free (.);

    krb5_auth_con_getflags ();
    and krb5_auth_con_setflags ();
    gets and modifies the flags for a krb5_auth_context structure. Possible flags to set are:

    KRB5_AUTH_CONTEXT_DO_TIME
    check timestamp on incoming packets.
    KRB5_AUTH_CONTEXT_DO_SEQUENCE
    Generate and check sequence-number on each packet.

    krb5_auth_con_setaddrs (,);
    krb5_auth_con_setaddrs_from_fd ();
    and krb5_auth_con_getaddrs ();
    gets and sets the addresses that are checked when a packet is received. It is mandatory to set an address for the remote host. If the local address is not set, it iss deduced from the underlaying operating system. krb5_auth_con_getaddrs ();
    will call krb5_free_address ();
    on any address that is passed in Fa local_addr or Fa remote_addr . krb5_auth_con_setaddr ();
    allows passing in a NULL pointer as Fa local_addr and Fa remote_addr , in that case it will just not set that address.

    krb5_auth_con_setaddrs_from_fd ();
    fetches the addresses from a file descriptor.

    krb5_auth_con_genaddrs ();
    fetches the address information from the given file descriptor Fa fd depending on the bitmap argument Fa flags .

    Possible values on Fa flags are:

    KRB5_AUTH_CONTEXT_GENERATE_LOCAL_ADDR
    fetches the local address from Fa fd .
    KRB5_AUTH_CONTEXT_GENERATE_REMOTE_ADDR
    fetches the remote address from Fa fd .

    krb5_auth_con_setkey (,);
    krb5_auth_con_setuserkey ();
    and krb5_auth_con_getkey ();
    gets and sets the key used for this auth context. The keyblock returned by krb5_auth_con_getkey ();
    should be freed with krb5_free_keyblock (.);
    The keyblock send into krb5_auth_con_setkey ();
    is copied into the krb5_auth_context and thus no special handling is needed. NULL is not a valid keyblock to krb5_auth_con_setkey (.);

    krb5_auth_con_setuserkey ();
    is only useful when doing user to user authentication. krb5_auth_con_setkey ();
    is equivalent to krb5_auth_con_setuserkey (.);

    krb5_auth_con_getlocalsubkey (,);
    krb5_auth_con_setlocalsubkey (,);
    krb5_auth_con_getremotesubkey ();
    and krb5_auth_con_setremotesubkey ();
    gets and sets the keyblock for the local and remote subkey. The keyblock returned by krb5_auth_con_getlocalsubkey ();
    and krb5_auth_con_getremotesubkey ();
    must be freed with krb5_free_keyblock (.);

    krb5_auth_setcksumtype ();
    and krb5_auth_getcksumtype ();
    sets and gets the checksum type that should be used for this connection.

    krb5_auth_getremoteseqnumber ();
    krb5_auth_setremoteseqnumber (,);
    krb5_auth_getlocalseqnumber ();
    and krb5_auth_setlocalseqnumber ();
    gets and sets the sequence-number for the local and remote sequence-number counter.

    krb5_auth_setkeytype ();
    and krb5_auth_getkeytype ();
    gets and gets the keytype of the keyblock in krb5_auth_context

    krb5_auth_getauthenticator ();
    Retrieves the authenticator that was used during mutual authentication. The authenticator returned should be freed by calling krb5_free_authenticator (.);

    krb5_auth_con_getrcache ();
    and krb5_auth_con_setrcache ();
    gets and sets the replay-cache.

    krb5_auth_con_initivector ();
    allocates memory for and zeros the initial vector in the Fa auth_context keyblock.

    krb5_auth_con_setivector ();
    sets the i_vector portion of Fa auth_context to Fa ivector .  

    SEE ALSO

    krb5_context3, kerberos(8)


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    SEE ALSO


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