diff options
author | Justus Winter <justus@sequoia-pgp.org> | 2019-05-09 15:19:24 +0200 |
---|---|---|
committer | Justus Winter <justus@sequoia-pgp.org> | 2019-05-09 15:19:24 +0200 |
commit | 75d4e6dda12e8b7ae8573227e61e718ede3f2cfc (patch) | |
tree | c6b9e3f177d8c65d134acfd889c236203b2ac13f /openpgp-ffi | |
parent | 8e0f817f312f469871a5fbed6bb961f6117ba742 (diff) |
openpgp: Communicate message structure from the decryptor.
- Fixes #100.
Diffstat (limited to 'openpgp-ffi')
-rw-r--r-- | openpgp-ffi/examples/decrypt-with.c | 87 | ||||
-rw-r--r-- | openpgp-ffi/include/sequoia/openpgp.h | 96 | ||||
-rw-r--r-- | openpgp-ffi/include/sequoia/openpgp/types.h | 37 | ||||
-rw-r--r-- | openpgp-ffi/src/parse/stream.rs | 379 |
4 files changed, 453 insertions, 146 deletions
diff --git a/openpgp-ffi/examples/decrypt-with.c b/openpgp-ffi/examples/decrypt-with.c index 969b7e28..68ef0606 100644 --- a/openpgp-ffi/examples/decrypt-with.c +++ b/openpgp-ffi/examples/decrypt-with.c @@ -38,9 +38,90 @@ get_public_keys_cb (void *cookie_raw, } static pgp_status_t -check_signatures_cb(void *cookie_opaque, - pgp_verification_results_t results, size_t levels) +check_cb (void *cookie_opaque, pgp_message_structure_t structure) { + pgp_message_structure_iter_t iter = pgp_message_structure_iter (structure); + + for (pgp_message_layer_t layer = pgp_message_structure_iter_next (iter); + layer; + layer = pgp_message_structure_iter_next (iter)) { + uint8_t algo; + uint8_t aead_algo; + pgp_verification_result_iter_t results; + + switch (pgp_message_layer_variant (layer)) { + case PGP_MESSAGE_LAYER_COMPRESSION: + pgp_message_layer_compression (layer, &algo); + fprintf (stderr, "Compressed using %d\n", algo); + break; + + case PGP_MESSAGE_LAYER_ENCRYPTION: + pgp_message_layer_encryption (layer, &algo, &aead_algo); + if (aead_algo) { + fprintf (stderr, "Encrypted and protected using %d/%d\n", + algo, aead_algo); + } else { + fprintf (stderr, "Encrypted using %d\n", algo); + } + break; + + case PGP_MESSAGE_LAYER_SIGNATURE_GROUP: + pgp_message_layer_signature_group (layer, &results); + for (pgp_verification_result_t result = + pgp_verification_result_iter_next (results); + result; + result = pgp_verification_result_iter_next (results)) { + pgp_signature_t sig; + pgp_keyid_t keyid; + char *keyid_str = NULL; + + switch (pgp_verification_result_variant (result)) { + case PGP_VERIFICATION_RESULT_GOOD_CHECKSUM: + pgp_verification_result_good_checksum (result, &sig, NULL, + NULL, NULL, NULL); + keyid = pgp_signature_issuer (sig); + keyid_str = pgp_keyid_to_string (keyid); + fprintf (stderr, "Good signature from %s\n", keyid_str); + break; + + case PGP_VERIFICATION_RESULT_MISSING_KEY: + pgp_verification_result_missing_key (result, &sig); + keyid = pgp_signature_issuer (sig); + keyid_str = pgp_keyid_to_string (keyid); + fprintf (stderr, "No key to check signature from %s\n", keyid_str); + break; + + case PGP_VERIFICATION_RESULT_BAD_CHECKSUM: + pgp_verification_result_bad_checksum (result, &sig); + keyid = pgp_signature_issuer (sig); + if (keyid) { + keyid_str = pgp_keyid_to_string (keyid); + fprintf (stderr, "Bad signature from %s\n", keyid_str); + } else { + fprintf (stderr, "Bad signature without issuer information\n"); + } + break; + + default: + assert (! "reachable"); + } + free (keyid_str); + pgp_signature_free (sig); + pgp_verification_result_free (result); + } + pgp_verification_result_iter_free (results); + break; + + default: + assert (! "reachable"); + } + + pgp_message_layer_free (layer); + } + + pgp_message_structure_iter_free (iter); + pgp_message_structure_free (structure); + /* Implement your verification policy here. */ return PGP_STATUS_SUCCESS; } @@ -128,7 +209,7 @@ main (int argc, char **argv) }; plaintext = pgp_decryptor_new (&err, source, get_public_keys_cb, decrypt_cb, - check_signatures_cb, &cookie, 0); + check_cb, &cookie, 0); if (! plaintext) error (1, 0, "pgp_decryptor_new: %s", pgp_error_to_string (err)); diff --git a/openpgp-ffi/include/sequoia/openpgp.h b/openpgp-ffi/include/sequoia/openpgp.h index db3c82aa..3b001a15 100644 --- a/openpgp-ffi/include/sequoia/openpgp.h +++ b/openpgp-ffi/include/sequoia/openpgp.h @@ -1447,33 +1447,91 @@ pgp_writer_stack_t pgp_encryptor_new (pgp_error_t *errp, pgp_encryption_mode_t mode, uint8_t cipher_algo); -void pgp_verification_results_at_level(pgp_verification_results_t results, - size_t level, - pgp_verification_result_t **r, - size_t *r_count); +/*/ +/// Frees this object. +/*/ +void pgp_message_structure_free (pgp_message_structure_t); + +/*/ +/// Returns a human readable description of this object suitable for +/// debugging. +/*/ +char *pgp_message_structure_debug (const pgp_message_structure_t); +pgp_message_structure_iter_t +pgp_message_structure_iter (pgp_message_structure_t); /*/ -/// Returns the verification result code. +/// Frees this object. /*/ -pgp_verification_result_code_t pgp_verification_result_code( - pgp_verification_result_t r); +void pgp_message_structure_iter_free (pgp_message_structure_iter_t); + +pgp_message_layer_t +pgp_message_structure_iter_next (pgp_message_structure_iter_t); /*/ -/// Returns a reference to the signature. -/// -/// Do not modify the signature nor free it. +/// Frees this object. /*/ -pgp_signature_t pgp_verification_result_signature( +void pgp_message_layer_free (pgp_message_layer_t); + +/*/ +/// Returns a human readable description of this object suitable for +/// debugging. +/*/ +char *pgp_message_layer_debug (const pgp_message_layer_t); + +/*/ +/// Returns the message layer variant. +/*/ +pgp_message_layer_variant_t +pgp_message_layer_variant (pgp_message_layer_t); + +/*/ +/// Return the fields of the variants. +/*/ +bool pgp_message_layer_compression (pgp_message_layer_t, uint8_t *); +bool pgp_message_layer_encryption (pgp_message_layer_t, uint8_t *, uint8_t *); +bool pgp_message_layer_signature_group (pgp_message_layer_t, + pgp_verification_result_iter_t *); + +/*/ +/// Frees this object. +/*/ +void pgp_verification_result_iter_free (pgp_verification_result_iter_t); + +pgp_verification_result_t +pgp_verification_result_iter_next (pgp_verification_result_iter_t); + +/*/ +/// Frees this object. +/*/ +void pgp_verification_result_free (pgp_verification_result_t); + +/*/ +/// Returns a human readable description of this object suitable for +/// debugging. +/*/ +char *pgp_verification_result_debug (const pgp_verification_result_t); + +/*/ +/// Returns the verification result variant. +/*/ +pgp_verification_result_variant_t pgp_verification_result_variant ( pgp_verification_result_t r); /*/ -/// Returns the signature's level. -/// -/// A level of zero means that the data was signed, a level of one -/// means that one or more signatures were notarized, etc. +/// Return the fields of the variants. /*/ -int pgp_verification_result_level(pgp_verification_result_t r); +bool pgp_verification_result_good_checksum (pgp_verification_result_t, + pgp_signature_t *, + pgp_tpk_t *, + pgp_key_t *, + pgp_signature_t *, + pgp_revocation_status_t *); +bool pgp_verification_result_missing_key (pgp_verification_result_t, + pgp_signature_t *); +bool pgp_verification_result_bad_checksum (pgp_verification_result_t, + pgp_signature_t *); /*/ /// Decrypts an OpenPGP message. @@ -1492,7 +1550,7 @@ int pgp_verification_result_level(pgp_verification_result_t r); pgp_reader_t pgp_decryptor_new (pgp_error_t *errp, pgp_reader_t input, pgp_decryptor_get_public_keys_cb_t get_public_keys, pgp_decryptor_decrypt_cb_t decrypt, - pgp_decryptor_check_signatures_cb_t check_signatures, + pgp_decryptor_check_cb_t check, void *cookie, time_t time); /*/ @@ -1503,7 +1561,7 @@ pgp_reader_t pgp_decryptor_new (pgp_error_t *errp, pgp_reader_t input, /*/ pgp_reader_t pgp_verifier_new (pgp_error_t *errp, pgp_reader_t input, pgp_decryptor_get_public_keys_cb_t get_public_keys, - pgp_decryptor_check_signatures_cb_t check_signatures, + pgp_decryptor_check_cb_t check, void *cookie, time_t time); /*/ @@ -1512,7 +1570,7 @@ pgp_reader_t pgp_verifier_new (pgp_error_t *errp, pgp_reader_t input, pgp_reader_t pgp_detached_verifier_new (pgp_error_t *errp, pgp_reader_t signature_input, pgp_reader_t input, pgp_decryptor_get_public_keys_cb_t get_public_keys, - pgp_decryptor_check_signatures_cb_t check_signatures, + pgp_decryptor_check_cb_t check, void *cookie, time_t time); #endif diff --git a/openpgp-ffi/include/sequoia/openpgp/types.h b/openpgp-ffi/include/sequoia/openpgp/types.h index c6572346..40c926d0 100644 --- a/openpgp-ffi/include/sequoia/openpgp/types.h +++ b/openpgp-ffi/include/sequoia/openpgp/types.h @@ -464,18 +464,38 @@ typedef enum pgp_encryption_mode { PGP_ENCRYPTION_MODE_FOR_TRANSPORT = 1, } pgp_encryption_mode_t; -typedef struct pgp_verification_results *pgp_verification_results_t; +/// Communicates the message structure to the VerificationHelper. +typedef struct pgp_message_structure *pgp_message_structure_t; + +/// Iterates over the message structure. +typedef struct pgp_message_structure_iter *pgp_message_structure_iter_t; + +/// Represents a layer of the message structure. +typedef struct pgp_message_layer *pgp_message_layer_t; + +typedef enum pgp_message_layer_variant { + PGP_MESSAGE_LAYER_COMPRESSION = 1, + PGP_MESSAGE_LAYER_ENCRYPTION = 2, + PGP_MESSAGE_LAYER_SIGNATURE_GROUP = 3, + + /* Dummy value to make sure the enumeration has a defined size. Do + not use this value. */ + PGP_MESSAGE_LAYER_CODE_FORCE_WIDTH = INT_MAX, +} pgp_message_layer_variant_t; + typedef struct pgp_verification_result *pgp_verification_result_t; -typedef enum pgp_verification_result_code { - PGP_VERIFICATION_RESULT_CODE_GOOD_CHECKSUM = 1, - PGP_VERIFICATION_RESULT_CODE_MISSING_KEY = 2, - PGP_VERIFICATION_RESULT_CODE_BAD_CHECKSUM = 3, +typedef struct pgp_verification_result_iter *pgp_verification_result_iter_t; + +typedef enum pgp_verification_result_variant { + PGP_VERIFICATION_RESULT_GOOD_CHECKSUM = 1, + PGP_VERIFICATION_RESULT_MISSING_KEY = 2, + PGP_VERIFICATION_RESULT_BAD_CHECKSUM = 3, /* Dummy value to make sure the enumeration has a defined size. Do not use this value. */ PGP_VERIFICATION_RESULT_CODE_FORCE_WIDTH = INT_MAX, -} pgp_verification_result_code_t; +} pgp_verification_result_variant_t; typedef pgp_status_t (*pgp_decryptor_get_public_keys_cb_t) (void *, pgp_keyid_t *, size_t, @@ -494,8 +514,7 @@ typedef pgp_status_t (*pgp_decryptor_decrypt_cb_t) (void *, void *, pgp_fingerprint_t *); -typedef pgp_status_t (*pgp_decryptor_check_signatures_cb_t) (void *, - pgp_verification_results_t, - size_t); +typedef pgp_status_t (*pgp_decryptor_check_cb_t) (void *, + pgp_message_structure_t); #endif diff --git a/openpgp-ffi/src/parse/stream.rs b/openpgp-ffi/src/parse/stream.rs index ebd4bc50..8dcaf101 100644 --- a/openpgp-ffi/src/parse/stream.rs +++ b/openpgp-ffi/src/parse/stream.rs @@ -11,7 +11,7 @@ //! [`sequoia-openpgp::parse::stream`]: ../../../sequoia_openpgp/parse/stream/index.html use std::ptr; -use libc::{c_int, size_t, c_void, uint8_t, time_t}; +use libc::{c_int, c_void, uint8_t, time_t}; extern crate sequoia_openpgp as openpgp; extern crate time; @@ -25,10 +25,10 @@ use self::openpgp::{ }, }; use self::openpgp::parse::stream::{ + self, DecryptionHelper, Decryptor, VerificationHelper, - VerificationResult, Verifier, DetachedVerifier, }; @@ -45,93 +45,221 @@ use super::super::{ crypto, io, keyid, - packet, tpk::TPK, + packet::signature::Signature, + packet::key::Key, + revocation_status::RevocationStatus, }; -// Decryptor. +/// Communicates the message structure to the VerificationHelper. +#[::ffi_wrapper_type(prefix = "pgp_", derive = "Debug")] +pub struct MessageStructure<'a>(stream::MessageStructure<'a>); -/// A message's verification results. -/// -/// Conceptually, the verification results are an array of an array of -/// VerificationResult. The outer array is for the verification level -/// and is indexed by the verification level. A verification level of -/// zero corresponds to direct signatures; A verification level of 1 -/// corresponds to notarizations (i.e., signatures of signatures); -/// etc. +/// Iterates over the message structure. +#[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "system" +fn pgp_message_structure_iter(structure: *const MessageStructure) + -> *mut MessageStructureIter { + structure.ref_raw().iter().move_into_raw() +} + +/// Iterates over the message structure. +#[::ffi_wrapper_type(prefix = "pgp_", derive = "Iterator(MessageLayer)")] +pub struct MessageStructureIter<'a>(stream::MessageStructureIter<'a>); + +/// Represents a layer of the message structure. +#[::ffi_wrapper_type(prefix = "pgp_", derive = "Debug")] +pub struct MessageLayer<'a>(stream::MessageLayer<'a>); + +/// Returns the message layer variant. +#[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" +fn pgp_message_layer_variant(result: *const MessageLayer) + -> c_int +{ + use self::stream::MessageLayer::*; + match result.ref_raw() { + Compression { .. } => 1, + Encryption { .. } => 2, + SignatureGroup { .. } => 3, + } +} + +/// Decomposes a `MessageLayer::Compression`. /// -/// Within each level, there can be one or more signatures. -pub struct VerificationResults<'a> { - results: Vec<Vec<&'a VerificationResult<'a>>>, +/// Returns `true` iff the given value is a +/// `MessageLayer::Compression`, and returns each of the variants +/// members if the corresponding parameter is not `NULL`. +#[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" +fn pgp_message_layer_compression(v: *const MessageLayer, + algo_r: Maybe<uint8_t>) + -> bool +{ + use self::stream::MessageLayer::*; + if let Compression { algo } = v.ref_raw() { + if let Some(mut p) = algo_r { + *unsafe { p.as_mut() } = (*algo).into(); + } + true + } else { + false + } } -/// Returns the `VerificationResult`s at level `level. +/// Decomposes a `MessageLayer::Encryption`. /// -/// Conceptually, the verification results are an array of an array of -/// VerificationResult. The outer array is for the verification level -/// and is indexed by the verification level. A verification level of -/// zero corresponds to direct signatures; A verification level of 1 -/// corresponds to notarizations (i.e., signatures of signatures); -/// etc. +/// Returns `true` iff the given value is a +/// `MessageLayer::Encryption`, and returns each of the variants +/// members if the corresponding parameter is not `NULL`. +#[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" +fn pgp_message_layer_encryption(v: *const MessageLayer, + sym_algo_r: Maybe<uint8_t>, + aead_algo_r: Maybe<uint8_t>) + -> bool +{ + use self::stream::MessageLayer::*; + if let Encryption { sym_algo, aead_algo } = v.ref_raw() { + if let Some(mut p) = sym_algo_r { + *unsafe { p.as_mut() } = (*sym_algo).into(); + } + if let Some(mut p) = aead_algo_r { + *unsafe { p.as_mut() } = + aead_algo.map(|a| a.into()).unwrap_or(0); + } + true + } else { + false + } +} + +/// Decomposes a `MessageLayer::SignatureGroup`. /// -/// This function returns the verification results for a particular -/// level. The result is an array of references to -/// `VerificationResult`. +/// Returns `true` iff the given value is a +/// `MessageLayer::SignatureGroup`, and returns each of the variants +/// members if the corresponding parameter is not `NULL`. #[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" -fn pgp_verification_results_at_level<'a>(results: *const VerificationResults<'a>, - level: size_t, - r: *mut *const &'a VerificationResult<'a>, - r_count: *mut size_t) { - let results = ffi_param_ref!(results); - let r = ffi_param_ref_mut!(r); - let r_count = ffi_param_ref_mut!(r_count); - - assert!(level < results.results.len()); - - // The size of VerificationResult is not known in C. Convert from - // an array of VerificationResult to an array of - // VerificationResult refs. - *r = results.results[results.results.len() - level - 1].as_ptr(); - *r_count = results.results[results.results.len() - level - 1].len(); +fn pgp_message_layer_signature_group<'a>( + v: *const MessageLayer<'a>, + results_r: Maybe<* mut VerificationResultIter<'a>>) + -> bool +{ + use self::stream::MessageLayer::*; + if let SignatureGroup { results } = v.ref_raw() { + if let Some(mut p) = results_r { + *unsafe { p.as_mut() } = results.iter().move_into_raw(); + } + true + } else { + false + } } -/// Returns the verification result code. +/// A message's verification results. +#[::ffi_wrapper_type(prefix = "pgp_", derive = "Iterator(VerificationResult)")] +pub struct VerificationResultIter<'a>( + ::std::slice::Iter<'a, stream::VerificationResult<'a>>); + +/// A message's verification results. +#[::ffi_wrapper_type(prefix = "pgp_", derive = "Debug")] +pub struct VerificationResult<'a>(stream::VerificationResult<'a>); + +/// Returns the verification result variant. #[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" -fn pgp_verification_result_code(result: *const VerificationResult) +fn pgp_verification_result_variant(result: *const VerificationResult) -> c_int { - let result = ffi_param_ref!(result); - match result { - VerificationResult::GoodChecksum(..) => 1, - VerificationResult::MissingKey(_) => 2, - VerificationResult::BadChecksum(_) => 3, + use self::stream::VerificationResult::*; + match result.ref_raw() { + GoodChecksum(..) => 1, + MissingKey(_) => 2, + BadChecksum(_) => 3, } } -/// Returns the verification result code. +/// Decomposes a `VerificationResult::GoodChecksum`. +/// +/// Returns `true` iff the given value is a +/// `VerificationResult::GoodChecksum`, and returns the variants members +/// in `sig_r` and the like iff `sig_r != NULL`. #[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" -fn pgp_verification_result_signature(result: *const VerificationResult) - -> *mut packet::signature::Signature +fn pgp_verification_result_good_checksum<'a>( + result: *const VerificationResult<'a>, + sig_r: Maybe<*mut Signature>, + tpk_r: Maybe<*mut TPK>, + key_r: Maybe<*mut Key>, + binding_r: Maybe<Maybe<Signature>>, + revocation_status_r: + Maybe<*mut RevocationStatus<'a>>) + -> bool { - let result = ffi_param_ref!(result); - let sig = match result { - VerificationResult::GoodChecksum(ref sig, ..) => sig, - VerificationResult::MissingKey(ref sig) => sig, - VerificationResult::BadChecksum(ref sig) => sig, - }; - - sig.move_into_raw() + use self::stream::VerificationResult::*; + if let GoodChecksum(ref sig, ref tpk, ref key, ref binding, ref revocation) + = result.ref_raw() + { + if let Some(mut p) = sig_r { + *unsafe { p.as_mut() } = sig.move_into_raw(); + } + if let Some(mut p) = tpk_r { + *unsafe { p.as_mut() } = tpk.move_into_raw(); + } + if let Some(mut p) = key_r { + *unsafe { p.as_mut() } = key.move_into_raw(); + } + if let Some(mut p) = binding_r { + *unsafe { p.as_mut() } = binding.move_into_raw(); + } + if let Some(mut p) = revocation_status_r { + *unsafe { p.as_mut() } = revocation.move_into_raw(); + } + true + } else { + false + } } -/// Returns the verification result code. +/// Decomposes a `VerificationResult::MissingKey`. +/// +/// Returns `true` iff the given value is a +/// `VerificationResult::MissingKey`, and returns the variants members +/// in `sig_r` and the like iff `sig_r != NULL`. #[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" -fn pgp_verification_result_level(result: *const VerificationResult) - -> c_int +fn pgp_verification_result_missing_key<'a>( + result: *const VerificationResult<'a>, + sig_r: Maybe<*mut Signature>) + -> bool { - let result = ffi_param_ref!(result); - result.level() as c_int + use self::stream::VerificationResult::*; + if let MissingKey(ref sig) = result.ref_raw() + { + if let Some(mut p) = sig_r { + *unsafe { p.as_mut() } = sig.move_into_raw(); + } + true + } else { + false + } } +/// Decomposes a ``VerificationResult::BadChecksum`. +/// +/// Returns `true` iff the given value is a +/// `VerificationResult::BadChecksum`, and returns the variants +/// members in `sig_r` and the like iff `sig_r != NULL`. +#[::sequoia_ffi_macros::extern_fn] #[no_mangle] pub extern "C" +fn pgp_verification_result_bad_checksum<'a>( + result: *const VerificationResult<'a>, + sig_r: Maybe<*mut Signature>) + -> bool +{ + use self::stream::VerificationResult::*; + if let BadChecksum(ref sig) = result.ref_raw() + { + if let Some(mut p) = sig_r { + *unsafe { p.as_mut() } = sig.move_into_raw(); + } + true + } else { + false + } +} /// Passed as the first argument to the callbacks used by pgp_verify /// and pgp_decrypt. @@ -174,20 +302,20 @@ type DecryptCallback = fn(*mut HelperCookie, /// /// If the result is not Status::Success, then this aborts the /// Verification. -type CheckSignaturesCallback = fn(*mut HelperCookie, - *const VerificationResults, - usize) -> Status; +type CheckCallback = fn(*mut HelperCookie, + *const MessageStructure) + -> Status; // This fetches keys and computes the validity of the verification. struct VHelper { get_public_keys_cb: GetPublicKeysCallback, - check_signatures_cb: CheckSignaturesCallback, + check_signatures_cb: CheckCallback, cookie: *mut HelperCookie, } impl VHelper { fn new(get_public_keys: GetPublicKeysCallback, - check_signatures: CheckSignaturesCallback, + check_signatures: CheckCallback, cookie: *mut HelperCookie) -> Self { @@ -244,20 +372,11 @@ impl VerificationHelper for VHelper { Ok(tpks) } - fn check(&mut self, sigs: Vec<Vec<VerificationResult>>) + fn check(&mut self, structure: &stream::MessageStructure) -> Result<(), failure::Error> { - // The size of VerificationResult is not known in C. Convert - // from an array of VerificationResults to an array of - // VerificationResult refs. - let results = VerificationResults { - results: sigs.iter().map( - |r| r.iter().collect::<Vec<&VerificationResult>>()).collect() - }; - let result = (self.check_signatures_cb)(self.cookie, - &results, - results.results.len()); + structure.move_into_raw()); if result != Status::Success { // XXX: We need to convert the status to an error. A // status contains less information, but we should do the @@ -310,17 +429,31 @@ impl VerificationHelper for VHelper { /// } /// /// static pgp_status_t -/// check_signatures_cb(void *cookie_opaque, -/// pgp_verification_results_t results, size_t levels) +/// check_cb (void *cookie_opaque, pgp_message_structure_t structure) /// { -/// /* Implement your verification policy here. */ -/// assert (levels == 1); -/// pgp_verification_result_t *vrs; -/// size_t vr_count; -/// pgp_verification_results_at_level (results, 0, &vrs, &vr_count); -/// assert (vr_count == 1); -/// pgp_verification_result_code_t code = pgp_verification_result_code(vrs[0]); -/// assert (code == PGP_VERIFICATION_RESULT_CODE_GOOD_CHECKSUM); +/// pgp_message_structure_iter_t iter = +/// pgp_message_structure_iter (structure); +/// pgp_message_layer_t layer = pgp_message_structure_iter_next (iter); +/// assert (layer); +/// assert (pgp_message_layer_compression (layer, NULL)); +/// pgp_message_layer_free (layer); +/// layer = pgp_message_structure_iter_next (iter); +/// assert (layer); +/// pgp_verification_result_iter_t results; +/// if (pgp_message_layer_signature_group (layer, &results)) { +/// pgp_verification_result_t result = +/// pgp_verification_result_iter_next (results); +/// assert (result); +/// assert (pgp_verification_result_good_checksum (result, NULL, NULL, +/// NULL, NULL, NULL)); +/// pgp_verification_result_free (result); +/// } else { +/// assert (! "reachable"); +/// } +/// pgp_verification_result_iter_free (results); +/// pgp_message_layer_free (layer); +/// pgp_message_structure_iter_free (iter); +/// pgp_message_structure_free (structure); /// return PGP_STATUS_SUCCESS; /// } /// @@ -344,7 +477,7 @@ impl VerificationHelper for VHelper { /// .key = tpk, /* Move. */ /// }; /// plaintext = pgp_verifier_new (NULL, source, -/// get_public_keys_cb, check_signatures_cb, +/// get_public_keys_cb, check_cb, /// &cookie, 1554542219); /// assert (source); /// @@ -362,12 +495,12 @@ impl VerificationHelper for VHelper { fn pgp_verifier_new<'a>(errp: Option<&mut *mut ::error::Error>, input: *mut io::Reader, get_public_keys: GetPublicKeysCallback, - check_signatures: CheckSignaturesCallback, + check: CheckCallback, cookie: *mut HelperCookie, time: time_t) -> Maybe<io::Reader> { - let helper = VHelper::new(get_public_keys, check_signatures, cookie); + let helper = VHelper::new(get_public_keys, check, cookie); Verifier::from_reader(input.ref_mut_raw(), helper, maybe_time(time)) .map(|r| io::ReaderKind::Generic(Box::new(r))) @@ -418,17 +551,27 @@ fn maybe_time(t: time_t) -> Option<time::Tm> { /// } /// /// static pgp_status_t -/// check_signatures_cb(void *cookie_opaque, -/// pgp_verification_results_t results, size_t levels) +/// check_cb (void *cookie_opaque, pgp_message_structure_t structure) /// { -/// /* Implement your verification policy here. */ -/// assert (levels == 1); -/// pgp_verification_result_t *vrs; -/// size_t vr_count; -/// pgp_verification_results_at_level (results, 0, &vrs, &vr_count); -/// assert (vr_count == 1); -/// pgp_verification_result_code_t code = pgp_verification_result_code(vrs[0]); -/// assert (code == PGP_VERIFICATION_RESULT_CODE_GOOD_CHECKSUM); +/// pgp_message_structure_iter_t iter = +/// pgp_message_structure_iter (structure); +/// pgp_message_layer_t layer = pgp_message_structure_iter_next (iter); +/// assert (layer); +/// pgp_verification_result_iter_t results; +/// if (pgp_message_layer_signature_group (layer, &results)) { +/// pgp |