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/*
* This contains the definition of the INTRODUCE1 and INTRODUCE_ACK cell for
* onion service version 3 and onward. The following format is specified in
* proposal 224 section 3.2.
*/
/* From cell_common.trunnel. */
extern struct trn_cell_extension;
/* From ed25519_cert.trunnel. */
extern struct link_specifier;
const TRUNNEL_SHA1_LEN = 20;
const TRUNNEL_REND_COOKIE_LEN = 20;
/* INTRODUCE1 payload. See details in section 3.2.1. */
struct trn_cell_introduce1 {
/* Always zeroed. MUST be checked explicitely by the caller. */
u8 legacy_key_id[TRUNNEL_SHA1_LEN];
/* Authentication key material. */
u8 auth_key_type IN [0x00, 0x01, 0x02];
u16 auth_key_len;
u8 auth_key[auth_key_len];
/* Extension(s). Reserved fields. */
struct trn_cell_extension extensions;
/* Variable length, up to the end of cell. */
u8 encrypted[];
};
/* INTRODUCE_ACK payload. See details in section 3.2.2. */
struct trn_cell_introduce_ack {
/* Status of introduction. */
u16 status IN [0x0000, 0x0001, 0x0002];
/* Extension(s). Reserved fields. */
struct trn_cell_extension extensions;
};
/* Encrypted section of the INTRODUCE1/INTRODUCE2 cell. */
struct trn_cell_introduce_encrypted {
/* Rendezvous cookie. */
u8 rend_cookie[TRUNNEL_REND_COOKIE_LEN];
/* Extension(s). Reserved fields. */
struct trn_cell_extension extensions;
/* Onion key material. */
u8 onion_key_type IN [0x01];
u16 onion_key_len;
u8 onion_key[onion_key_len];
/* Link specifiers(s) */
u8 nspec;
struct link_specifier nspecs[nspec];
/* Optional padding. This might be empty or not. */
u8 pad[];
};
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