Security-Server Header [SIP Headers]

The Security-Server header is defined by RFC 3329, "Security Mechanism Agreement for the Session Initiation Protocol (SIP)". More...

Defines
#define	sip_security_server(sip)
	Access a SIP Security-Server header structure sip_security_server_t from sip_t.
#define	SIP_SECURITY_SERVER_INIT()
	Initializer for structure sip_security_server_t.
#define	SIPTAG_SECURITY_SERVER(x)
	Tag list item for pointer to a Security-Server header structure sip_security_server_t.
#define	SIPTAG_SECURITY_SERVER_REF(x)
	Tag list item for reference to a Security-Server header pointer.
#define	SIPTAG_SECURITY_SERVER_STR(s)
	Tag list item for string with Security-Server header value.
#define	SIPTAG_SECURITY_SERVER_STR_REF(x)
	Tag list item for reference to a Security-Server header string.
Typedefs
typedef struct sip_security_agree_s	sip_security_server_t
	The structure sip_security_server_t contains representation of SIP Security-Server header.
Functions
issize_t	sip_security_server_d (su_home_t *, msg_header_t *, char *s, isize_t slen)
	Parse a SIP Security-Server header.
issize_t	sip_security_server_e (char b[], isize_t bsiz, msg_header_t const *h, int flags)
	Print a SIP Security-Server header.
sip_security_server_t *	sip_security_server_init (sip_security_server_t x[1])
	Initialize a structure sip_security_server_t.
int	sip_is_security_server (sip_header_t const *header)
	Test if header object is instance of sip_security_server_t.
sip_security_server_t *	sip_security_server_dup (su_home_t *home, sip_security_server_t const *hdr))
	Duplicate a list of Security-Server header header structures sip_security_server_t.
sip_security_server_t *	sip_security_server_copy (su_home_t *home, sip_security_server_t const *hdr))
	Copy a list of Security-Server header header structures sip_security_server_t.
sip_security_server_t *	sip_security_server_make (su_home_t *home, char const *s))
	Make a Security-Server header structure sip_security_server_t.
sip_security_server_t *	sip_security_server_format (su_home_t *home, char const *fmt,...)))
	Make a Security-Server header from formatting result.
Variables
msg_hclass_t	sip_security_server_class []
	Header class for Security-Server header.
tag_typedef_t	siptag_security_server
	Tag for Security-Server header object.
tag_typedef_t	siptag_security_server_str
	Tag for string with Security-Server header value.

---

Detailed Description

The Security-Server header is defined by RFC 3329, "Security Mechanism Agreement for the Session Initiation Protocol (SIP)".

See also:

Security-Client, Security-Verify, sip_security_verify_compare(), sip_security_client_select(), RFC 3329.

The parsed Security-Server header is stored in sip_security_server_t structure.

---

Define Documentation

#define SIP_SECURITY_SERVER_INIT

(

)

Initializer for structure sip_security_server_t.

A static sip_security_server_t structure for Security-Server header must be initialized with the SIP_SECURITY_SERVER_INIT() macro. For instance,

  sip_security_server_t sip_security_server = SIP_SECURITY_SERVER_INIT;

#define SIPTAG_SECURITY_SERVER

(

x

)

Tag list item for pointer to a Security-Server header structure sip_security_server_t.

The SIPTAG_SECURITY_SERVER() macro is used to include a tag item with a pointer to a sip_security_server_t structure in a tag list.

Parameters:

x

pointer to a sip_security_server_t structure, or NULL.

The corresponding tag taking reference parameter is SIPTAG_SECURITY_SERVER_REF().

#define SIPTAG_SECURITY_SERVER_STR

(

s

)

Tag list item for string with Security-Server header value.

The SIPTAG_SECURITY_SERVER_STR() macro is used to include a tag item with a string containing value of a sip_security_server_t header in a tag list.

Parameters:

s

pointer to a string containing Security-Server header value, or NULL.

The string in SIPTAG_SECURITY_SERVER_STR() can be converted to a sip_security_server_t header structure by giving the string s has second argument to function sip_security_server_make().

The corresponding tag taking reference parameter is SIPTAG_SECURITY_SERVER_STR_REF().

---

Typedef Documentation

typedef struct sip_security_server_s sip_security_server_t

The structure sip_security_server_t contains representation of SIP Security-Server header.

The sip_security_server_t is defined as follows:

 typedef struct sip_security_agree_s
 {
   sip_common_t        sa_common[1]; // Common fragment info
   sip_security_server_t *sa_next;   // Link to next mechanism
   char const         *sa_mec;       // Security mechanism
   msg_param_t const  *sa_params;    // List of mechanism parameters
   char const         *sa_q;         // Value of q (preference) parameter
   char const         *sa_d_alg;     // Value of d-alg parameter
   char const         *sa_d_qop;     // Value of d-qop parameter
   char const         *sa_d_ver;     // Value of d-ver parameter
 } sip_security_server_t;

---

Function Documentation

int sip_is_security_server

(

sip_header_t const *

header

)

[inline]

Test if header object is instance of sip_security_server_t.

Check if the header class is an instance of Security-Server header object and return true (nonzero), otherwise return false (zero).

Parameters:

header

pointer to the header structure to be tested

Return values:

	1	(true) if the header is an instance of header security_server
	0	(false) otherwise

sip_security_server_t * sip_security_server_copy	(	su_home_t *	home,
		sip_security_server_t const *	hdr
	)			[inline]

Copy a list of Security-Server header header structures sip_security_server_t.

The function sip_security_server_copy() copies a header structure hdr. If the header structure hdr contains a reference (hdr->h_next) to a list of headers, all the headers in that list are copied, too. The function uses given memory home to allocate all the memory areas used to copy the list of header structure hdr.

Parameters:

	home	memory home used to allocate new structure
	hdr	pointer to the header structure to be copied

When copying, only the header structure and parameter lists attached to it are duplicated. The new header structure retains all the references to the strings within the old hdr header, including the encoding of the old header, if present.

Example

   security_server = sip_security_server_copy(home, sip->sip_security_server);

Returns:

A pointer to newly copied header structure, or NULL upon an error.

sip_security_server_t * sip_security_server_dup	(	su_home_t *	home,
		sip_security_server_t const *	hdr
	)			[inline]

Duplicate a list of Security-Server header header structures sip_security_server_t.

Duplicate a header structure hdr. If the header structure hdr contains a reference (hdr->x_next) to a list of headers, all the headers in the list are duplicated, too.

Parameters:

	home	memory home used to allocate new structure
	hdr	header structure to be duplicated

When duplicating, all parameter lists and non-constant strings attached to the header are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header.

Example

   security_server = sip_security_server_dup(home, sip->sip_security_server);

Returns:

A pointer to the newly duplicated sip_security_server_t header structure, or NULL upon an error.

sip_security_server_t * sip_security_server_format	(	su_home_t *	home,
		char const *	fmt,
			...
	)			[inline]

Make a Security-Server header from formatting result.

Make a new sip_security_server_t object using formatting result as its value. The function first prints the arguments according to the format fmt specified. Then it allocates a new header structure, and parses the formatting result to the structure sip_security_server_t.

Parameters:

	home	memory home used to allocate new header structure.
	fmt	string used as a printf()-style format
	...	argument list for format

Returns:

A pointer to newly makes header structure, or NULL upon an error.

sip_security_server_t* sip_security_server_init

(

sip_security_server_t

x[1]

)

[inline]

Initialize a structure sip_security_server_t.

An sip_security_server_t structure for Security-Server header can be initialized with the sip_security_server_init() function/macro. For instance,

  sip_security_server_t sip_security_server;

  sip_security_server_init(&sip_security_server);

sip_security_server_t * sip_security_server_make	(	su_home_t *	home,
		char const *	s
	)			[inline]

Make a Security-Server header structure sip_security_server_t.

The function sip_security_server_make() makes a new sip_security_server_t header structure. It allocates a new header structure, and decodes the string s as the value of the structure.

Parameters:

	home	memory home used to allocate new header structure.
	s	string to be decoded as value of the new header structure

Returns:

A pointer to newly maked sip_security_server_t header structure, or NULL upon an error.

---

Variable Documentation

msg_hclass_t sip_security_server_class[]

Header class for Security-Server header.

The header class sip_security_server_class defines how a SIP Security-Server header is parsed and printed. It also contains methods used by SIP parser and other functions to manipulate the sip_security_server_t header structure.