#include <tls_extensions.h>

Inheritance diagram for Botan::TLS::SRTP_Protection_Profiles:

Public Member Functions
bool	empty () const override

const std::vector< uint16_t > &	profiles () const

std::vector< uint8_t >	serialize (Connection_Side whoami) const override

	SRTP_Protection_Profiles (const std::vector< uint16_t > &pp)

	SRTP_Protection_Profiles (uint16_t pp)

	SRTP_Protection_Profiles (TLS_Data_Reader &reader, uint16_t extension_size)

Handshake_Extension_Type	type () const override

Static Public Member Functions
static Handshake_Extension_Type	static_type ()

Detailed Description

Used to indicate SRTP algorithms for DTLS (RFC 5764)

Definition at line 328 of file tls_extensions.h.

Constructor & Destructor Documentation

◆ SRTP_Protection_Profiles() [1/3]

Botan::TLS::SRTP_Protection_Profiles::SRTP_Protection_Profiles ( const std::vector< uint16_t > & pp )

inlineexplicit

Definition at line 342 of file tls_extensions.h.

342 : m_pp(pp) {}

◆ SRTP_Protection_Profiles() [2/3]

Botan::TLS::SRTP_Protection_Profiles::SRTP_Protection_Profiles ( uint16_t pp )

inlineexplicit

Definition at line 344 of file tls_extensions.h.

344 : m_pp(1, pp) {}

◆ SRTP_Protection_Profiles() [3/3]

Botan::TLS::SRTP_Protection_Profiles::SRTP_Protection_Profiles	(	TLS_Data_Reader &	reader,
		uint16_t	extension_size
	)

Definition at line 461 of file tls_extensions.cpp.

References Botan::TLS::TLS_Data_Reader::get_range().

                                                                             : m_pp(reader.get_range<uint16_t>(2, 0, 65535))
    {
    const std::vector<uint8_t> mki = reader.get_range<uint8_t>(1, 0, 255);
 
    if(m_pp.size() * 2 + mki.size() + 3 != extension_size)
       throw Decoding_Error("Bad encoding for SRTP protection extension");
 
    if(!mki.empty())
       throw Decoding_Error("Unhandled non-empty MKI for SRTP protection extension");
    }

Member Function Documentation

◆ empty()

bool Botan::TLS::SRTP_Protection_Profiles::empty ( ) const

inlineoverridevirtual

Returns: if we should encode this extension or not

Implements Botan::TLS::Extension.

Definition at line 340 of file tls_extensions.h.

340 { return m_pp.empty(); }

◆ profiles()

const std::vector<uint16_t>& Botan::TLS::SRTP_Protection_Profiles::profiles ( ) const

inline

Definition at line 336 of file tls_extensions.h.

336 { return m_pp; }

◆ serialize()

std::vector< uint8_t > Botan::TLS::SRTP_Protection_Profiles::serialize ( Connection_Side whoami ) const

overridevirtual

Returns: serialized binary for the extension

Implements Botan::TLS::Extension.

Definition at line 473 of file tls_extensions.cpp.

References Botan::get_byte().

    {
    std::vector<uint8_t> buf;
 
    const uint16_t pp_len = static_cast<uint16_t>(m_pp.size() * 2);
    buf.push_back(get_byte(0, pp_len));
    buf.push_back(get_byte(1, pp_len));
 
    for(uint16_t pp : m_pp)
       {
       buf.push_back(get_byte(0, pp));
       buf.push_back(get_byte(1, pp));
       }
 
    buf.push_back(0); // srtp_mki, always empty here
 
    return buf;
    }