gssapi.5 (2010 09)

gssapi(5) gssapi(5)

system. Therefore portable applications should use either the correct address type and value or the

GSS_C_AF_NULLADDR

for the initiator_addrtype

address ﬁeld. Some security mechanisms

include the channel binding data in the token instead of a signature, so portable applications should not

use conﬁdential data as channel-binding components. The GSSAPI does not verify the address or include

the plain text bindings information in the token.

Optional Parameters

In routine descriptions, optional parameters allow the application to request default behaviors by passing

a default value for the parameter. The following conventions are used for optional parameters:

Convention Value Default Explanation

For an input parameter,

indicates no data is sup-

plied. For an output

parameter, indicates that

the information returned is

not required by the applica-

tion.

gss_buffer_t types GSS_C_NO_BUFFER

Refer to the reference

pages for default values.

Integer types (input)

Indicates that the applica-

tion does not require the

information.

Integer types (output) NULL

Indicates that the applica-

tion does not require the

information.

Pointer types (output) NULL

Indicates the default choice

for name type or security

mechanism.

OIDs GSS_C_NULL_OID

Indicates the default set of

security mechanisms

OID sets GSS_C_NULL_OID_SET

Indicates that the applica-

tion should use the default

credential handle.

Credentials GSS_C_NO_CREDENTIAL

Indicates that no channel

bindings are used.

Channel bindings GSS_C_NO_CHANNEL_BINDINGS