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authorFranklin Wei <me@fwei.tk>2018-07-10 19:55:36 +0000
committerFranklin Wei <me@fwei.tk>2018-07-10 19:55:36 +0000
commit7f4cd7a5065ca29d4644b301b54f2db3e71b1647 (patch)
tree4ab1322ffa45c61297c28209ad6282b262ee5cb8
parent1ad0b326b1d9f780b9189383bcc271e2b74b4358 (diff)
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Track build code/compose file as a hash
-rw-r--r--client.c85
-rw-r--r--crypto.c35
-rw-r--r--crypto.h5
-rw-r--r--service_provider.c155
-rw-r--r--service_provider.h12
5 files changed, 156 insertions, 136 deletions
diff --git a/client.c b/client.c
index d422385..e157057 100644
--- a/client.c
+++ b/client.c
@@ -84,7 +84,7 @@ void print_usage(const char *name)
"\n"
" retrieveinfo -f FILEIDX [-v VERSION]\n"
"\n"
- " retrievefile -f FILEIDX [-v VERSION] -o IMAGE_OUT\n");
+ " retrievefile -f FILEIDX [-v VERSION] -o IMAGE_OUT [-ob bc_out] [-oc cf_out]\n");
}
bool parse_args(int argc, char *argv[])
@@ -153,7 +153,7 @@ bool parse_args(int argc, char *argv[])
return false;
}
}
- else if(!strcmp(arg, "-ib"))
+ else if(!strcmp(arg, "-ib") || !strcmp(arg, "-ob"))
{
if(++i < argc)
buildcode_path = argv[i];
@@ -163,7 +163,7 @@ bool parse_args(int argc, char *argv[])
return false;
}
}
- else if(!strcmp(arg, "-ic"))
+ else if(!strcmp(arg, "-ic") || !strcmp(arg, "-oc"))
{
if(++i < argc)
compose_path = argv[i];
@@ -379,14 +379,14 @@ static bool verify_sp_ack(int fd, const struct tm_request *tmr)
* this case (in all other cases they are ignored). */
bool exec_request(int fd, const struct user_request *req,
const struct iomt *new_acl, /* MODIFY_ACL only */
- const struct iomt *new_buildcode, /* MODIFY_FILE only */
- const struct iomt *new_composefile, /* MODIFY_FILE only */
+ const void *new_bc, size_t new_bc_len, /* MODIFY_FILE only */
+ const void *new_cf, size_t new_cf_len, /* MODIFY_FILE only */
const void *new_file_contents, size_t len, /* MODIFY_FILE only */
struct tm_request *tmreq_out, /* CREATE_FILE, MODIFY_FILE, and MODIFY_ACL only */
struct version_info *verinfo_out, /* RETRIEVE_INFO only */
const void *user_key, size_t keylen, /* RETRIEVE_INFO and RETRIEVE_FILE only */
- struct iomt **buildcode, /* RETRIEVE_FILE only */
- struct iomt **composefile, /* RETRIEVE_FILE only */
+ void **buildcode, size_t *bc_len_out, /* RETRIEVE_FILE only */
+ void **composefile, size_t *cf_len_out, /* RETRIEVE_FILE only */
hash_t *secret_out, /* RETRIEVE_FILE only */
void **file_contents_out, /* RETRIEVE_FILE only */
size_t *file_len) /* RETRIEVE_FILE only */
@@ -401,12 +401,9 @@ bool exec_request(int fd, const struct user_request *req,
break;
case MODIFY_FILE:
/* send build code, compose file, and file contents */
- iomt_serialize(new_buildcode, write_to_fd, &fd);
- iomt_serialize(new_composefile, write_to_fd, &fd);
-
- /* prefix file with size */
- write(fd, &len, sizeof(len));
- write(fd, new_file_contents, len);
+ serialize_file(fd, new_file_contents, len);
+ serialize_file(fd, new_bc, new_bc_len);
+ serialize_file(fd, new_cf, new_cf_len);
break;
case CREATE_FILE:
case RETRIEVE_INFO:
@@ -427,9 +424,12 @@ bool exec_request(int fd, const struct user_request *req,
if(req->type == MODIFY_FILE)
{
hash_t gamma = sha256(new_file_contents, len);
+ hash_t h_bc = new_bc ? sha256(new_bc, new_bc_len) : hash_null;
+ hash_t h_cf = new_cf ? sha256(new_cf, new_cf_len) : hash_null;
+
val = calc_lambda(gamma,
- new_buildcode,
- new_composefile,
+ h_bc,
+ h_cf,
req->modify_file.kf);
}
else if(req->type == MODIFY_ACL)
@@ -478,22 +478,12 @@ bool exec_request(int fd, const struct user_request *req,
else
*secret_out = hash_null;
- *buildcode = iomt_deserialize(read_from_fd, &fd);
- *composefile = iomt_deserialize(read_from_fd, &fd);
-
- recv(fd, file_len, sizeof(*file_len), MSG_WAITALL);
+ *file_contents_out = deserialize_file(fd, file_len);
+
+ *buildcode = deserialize_file(fd, bc_len_out);
+ *composefile = deserialize_file(fd, cf_len_out);
- if(*file_len)
- {
- *file_contents_out = malloc(*file_len);
- recv(fd, *file_contents_out, *file_len, MSG_WAITALL);
- }
- else
- {
- *file_contents_out = NULL;
- return false;
- }
- return true;
+ return *file_contents_out != NULL;
}
default:
assert(false);
@@ -516,14 +506,14 @@ struct version_info request_verinfo(int fd, uint64_t user_id,
bool rc = exec_request(fd, &req,
NULL,
- NULL,
- NULL,
+ NULL, 0,
+ NULL, 0,
NULL, 0,
NULL,
&verinfo,
user_key, keylen,
- NULL,
- NULL,
+ NULL, NULL,
+ NULL, NULL,
NULL,
NULL,
NULL);
@@ -561,6 +551,9 @@ int connect_to_service(const char *sockpath)
void *load_file(const char *path, size_t *len)
{
+ if(!path)
+ return NULL;
+
FILE *f = fopen(path, "r");
fseek(f, 0, SEEK_END);
*len = ftell(f);
@@ -589,9 +582,8 @@ bool server_request(const char *sockpath,
const char *image_path,
const char *file_key)
{
- struct iomt *buildcode = NULL, *composefile = NULL;
- void *file_contents = NULL;
- size_t file_len = 0;
+ void *file_contents = NULL, *buildcode = NULL, *composefile = NULL;
+ size_t file_len = 0, bc_len = 0, cf_len = 0;
hash_t secret = hash_null;
/* Fill in rest of request structure */
@@ -600,8 +592,8 @@ bool server_request(const char *sockpath,
if(req.type == MODIFY_FILE)
{
/* these can safely take NULLs */
- buildcode = iomt_from_lines(buildcode_path);
- composefile = iomt_from_lines(compose_path);
+ buildcode = load_file(buildcode_path, &bc_len);
+ composefile = load_file(compose_path, &cf_len);
if(image_path)
{
@@ -657,7 +649,9 @@ bool server_request(const char *sockpath,
bool success = exec_request(fd, &req,
req.type == MODIFY_ACL ? new_acl : NULL,
req.type == MODIFY_FILE ? buildcode : NULL,
+ req.type == MODIFY_FILE ? bc_len : 0,
req.type == MODIFY_FILE ? composefile : NULL,
+ req.type == MODIFY_FILE ? cf_len : 0,
req.type == MODIFY_FILE ? file_contents : NULL,
req.type == MODIFY_FILE ? file_len : 0,
req.type <= MODIFY_ACL ? &tmreq : NULL,
@@ -665,7 +659,9 @@ bool server_request(const char *sockpath,
req.type >= RETRIEVE_INFO ? user_key : NULL,
req.type >= RETRIEVE_INFO ? strlen(user_key) : 0,
req.type == RETRIEVE_FILE ? &buildcode : NULL,
+ req.type == RETRIEVE_FILE ? &bc_len : NULL,
req.type == RETRIEVE_FILE ? &composefile : NULL,
+ req.type == RETRIEVE_FILE ? &cf_len : NULL,
req.type == RETRIEVE_FILE ? &secret : NULL,
req.type == RETRIEVE_FILE ? &file_contents : NULL,
req.type == RETRIEVE_FILE ? &file_len : NULL);
@@ -692,12 +688,15 @@ bool server_request(const char *sockpath,
case RETRIEVE_FILE:
{
hash_t gamma = sha256(file_contents, file_len);
+
+ hash_t h_bc = buildcode ? sha256(buildcode, bc_len) : hash_null;
+ hash_t h_cf = composefile ? sha256(composefile, cf_len) : hash_null;
hash_t kf = calc_kf(secret, req.retrieve.file_idx);
/* We should recalculate the roots of the two IOMTs ourselves
* to be sure */
- hash_t lambda = calc_lambda(gamma, buildcode, composefile, kf);
+ hash_t lambda = calc_lambda(gamma, h_bc, h_cf, kf);
printf("Decrypted file secret as %s\n", hash_format(secret, 4).str);
printf("File lambda = %s\n", hash_format(lambda, 4).str);
@@ -707,6 +706,12 @@ bool server_request(const char *sockpath,
printf("Writing image file to %s.\n", image_path);
write_file(image_path, file_contents, file_len);
+
+ if(buildcode_path && buildcode)
+ write_file(buildcode_path, buildcode, bc_len);
+
+ if(compose_path && composefile)
+ write_file(compose_path, composefile, cf_len);
/* What about build code? We only have the IOMT, not the actual contents. */
/* Verify contents */
diff --git a/crypto.c b/crypto.c
index 78b48a6..6ba1bba 100644
--- a/crypto.c
+++ b/crypto.c
@@ -299,14 +299,8 @@ hash_t crypt_secret(hash_t encrypted_secret,
/* These are all fixed-length fields, so we can safely append them and
* forgo any HMAC. */
-hash_t calc_lambda(hash_t gamma, const struct iomt *buildcode, const struct iomt *composefile, hash_t kf)
+hash_t calc_lambda(hash_t gamma, hash_t buildcode_root, hash_t composefile_root, hash_t kf)
{
- hash_t buildcode_root = hash_null, composefile_root = hash_null;
- if(buildcode)
- buildcode_root = iomt_getroot(buildcode);
- if(composefile)
- composefile_root = iomt_getroot(composefile);
-
SHA256_CTX ctx;
hash_t h;
@@ -491,6 +485,33 @@ void commit_transaction(void *db)
sqlite3_exec(handle, "COMMIT;", 0, 0, 0);
}
+void *deserialize_file(int cl, size_t *len)
+{
+ recv(cl, len, sizeof(*len), MSG_WAITALL);
+
+ printf("File is %lu bytes.\n", *len);
+
+ if(!*len)
+ return NULL;
+
+ void *buf = malloc(*len);
+ recv(cl, buf, *len, MSG_WAITALL);
+
+ return buf;
+}
+
+void serialize_file(int cl, const void *buf, size_t len)
+{
+ if(!buf)
+ len = 0;
+ write(cl, &len, sizeof(len));
+
+ if(!buf || !len)
+ return;
+
+ write(cl, buf, len);
+}
+
void crypto_test(void)
{
#if 1
diff --git a/crypto.h b/crypto.h
index e06b282..ca45247 100644
--- a/crypto.h
+++ b/crypto.h
@@ -67,7 +67,7 @@ hash_t crypt_secret(hash_t encrypted_secret,
struct iomt;
-hash_t calc_lambda(hash_t gamma, const struct iomt *buildcode, const struct iomt *composefile, hash_t kf);
+hash_t calc_lambda(hash_t gamma, hash_t h_bc, hash_t h_cf, hash_t kf);
/* Generate a signed acknowledgement for successful completion of a
* request. We append a zero byte to the user request and take the
@@ -93,6 +93,9 @@ hash_t calc_kf(hash_t encryption_key, uint64_t file_idx);
void begin_transaction(void *db);
void commit_transaction(void *db);
+void *deserialize_file(int cl, size_t *len);
+void serialize_file(int cl, const void *buf, size_t len);
+
void warn(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
/* self-test */
diff --git a/service_provider.c b/service_provider.c
index 3a01111..a064a90 100644
--- a/service_provider.c
+++ b/service_provider.c
@@ -35,12 +35,6 @@ struct file_version {
struct tm_cert vr_cert; /* VR certificate */
hash_t vr_hmac;
-
- /* lines of Dockerfile */
- struct iomt *buildcode;
-
- /* lines of docker-compose.yml */
- struct iomt *composefile;
};
/* should be free'd with free_record */
@@ -144,7 +138,7 @@ struct tm_cert cert_eq(struct service_provider *sp,
/* write to file data_dir/file_idx/version */
void write_contents(const struct service_provider *sp,
- uint64_t file_idx, uint64_t version,
+ uint64_t file_idx, uint64_t version, const char *suffix,
const void *data, size_t len)
{
mkdir(sp->data_dir, 0755);
@@ -155,7 +149,7 @@ void write_contents(const struct service_provider *sp,
mkdir(dirname, 0755);
char filename[MAX_PATH];
- snprintf(filename, sizeof(filename), "%s/%lu/%lu", sp->data_dir, file_idx, version);
+ snprintf(filename, sizeof(filename), "%s/%lu/%lu%s", sp->data_dir, file_idx, version, suffix);
FILE *f = fopen(filename, "w");
@@ -175,14 +169,21 @@ size_t file_len(FILE *f)
}
void *read_contents(const struct service_provider *sp,
- uint64_t file_idx, uint64_t version,
- size_t *len)
+ uint64_t file_idx, uint64_t version, const char *suffix,
+ size_t *len)
{
+ assert(len);
char filename[MAX_PATH];
- snprintf(filename, sizeof(filename), "%s/%lu/%lu", sp->data_dir, file_idx, version);
+ snprintf(filename, sizeof(filename), "%s/%lu/%lu%s", sp->data_dir, file_idx, version, suffix);
FILE *f = fopen(filename, "r");
+ if(!f)
+ {
+ *len = 0;
+ return NULL;
+ }
+
*len = file_len(f);
void *buf = malloc(*len);
@@ -367,8 +368,6 @@ static void free_version(struct file_version *ver)
{
if(ver)
{
- iomt_free(ver->buildcode);
- iomt_free(ver->composefile);
free(ver);
}
}
@@ -489,10 +488,6 @@ static void insert_version(struct service_provider *sp,
sqlite3_bind_blob(st, 5, &ver->vr_cert, sizeof(ver->vr_cert), SQLITE_TRANSIENT);
sqlite3_bind_blob(st, 6, &ver->vr_hmac, sizeof(ver->vr_hmac), SQLITE_TRANSIENT);
- sqlite3_bind_int64(st, 7, ver->buildcode ? ver->buildcode->mt_logleaves : -1);
-
- sqlite3_bind_int64(st, 8, ver->composefile ? ver->composefile->mt_logleaves : -1);
-
int rc = sqlite3_step(st);
if(rc != SQLITE_DONE)
{
@@ -544,21 +539,6 @@ static struct file_version *lookup_version(struct service_provider *sp,
memcpy(&ver->encrypted_secret, sqlite3_column_blob(st, 3), sizeof(ver->encrypted_secret));
memcpy(&ver->vr_cert, sqlite3_column_blob(st, 4), sizeof(ver->vr_cert));
memcpy(&ver->vr_hmac, sqlite3_column_blob(st, 5), sizeof(ver->vr_hmac));
-
- int64_t bc_logleaves = sqlite3_column_int64(st, 6);
- int64_t cf_logleaves = sqlite3_column_int64(st, 7);
-
- ver->buildcode = bc_logleaves >= 0 ? iomt_new_from_db(sp->db,
- "BCNodes", "BCLeaves",
- "FileIdx", file_idx,
- "Version", version,
- bc_logleaves) : NULL;
-
- ver->composefile = cf_logleaves >= 0 ? iomt_new_from_db(sp->db,
- "CFNodes", "CFLeaves",
- "FileIdx", file_idx,
- "Version", version,
- cf_logleaves) : NULL;
return ver;
}
return NULL;
@@ -588,8 +568,9 @@ struct tm_cert sp_request(struct service_provider *sp,
struct tm_cert *vr_out, hash_t *vr_hmac_out,
hash_t *ack_hmac_out,
hash_t encrypted_secret, hash_t kf,
- const struct iomt *buildcode, const struct iomt *composefile,
const void *encrypted_contents, size_t contents_len,
+ const void *buildcode, size_t buildcode_len,
+ const void *composefile, size_t composefile_len,
const struct iomt *new_acl)
{
struct tm_cert vr = cert_null;
@@ -662,23 +643,23 @@ struct tm_cert sp_request(struct service_provider *sp,
ver.version = fr.fr.version;
ver.vr_cert = vr;
ver.vr_hmac = vr_hmac;
-
- if(buildcode)
- ver.buildcode = iomt_dup(buildcode);
-
- if(composefile)
- ver.composefile = iomt_dup(composefile);
-
+
+ /* write to disk */
if(encrypted_contents)
- {
- /* write to disk */
- write_contents(sp, fr.fr.idx, fr.fr.version,
- encrypted_contents, contents_len);
- }
-
+ write_contents(sp, fr.fr.idx, fr.fr.version, "",
+ encrypted_contents, contents_len);
+
+ if(buildcode)
+ write_contents(sp, fr.fr.idx, fr.fr.version, "_bc",
+ buildcode, buildcode_len);
+
+ if(composefile)
+ write_contents(sp, fr.fr.idx, fr.fr.version, "_cf",
+ composefile, composefile_len);
+
insert_version(sp, rec, &ver);
}
-
+
if(need_insert)
insert_record(sp, rec);
else
@@ -810,7 +791,8 @@ struct tm_request sp_createfile(struct service_provider *sp,
NULL, NULL,
ack_hmac,
hash_null, hash_null,
- NULL, NULL,
+ NULL, 0,
+ NULL, 0,
NULL, 0,
acl);
sp->n_placeholders--;
@@ -876,7 +858,8 @@ struct tm_request sp_modifyacl(struct service_provider *sp,
NULL, NULL,
ack_hmac,
hash_null, hash_null,
- NULL, NULL,
+ NULL, 0,
+ NULL, 0,
NULL, 0,
new_acl);
@@ -891,8 +874,9 @@ struct tm_request sp_modifyfile(struct service_provider *sp,
void *userdata,
uint64_t file_idx,
hash_t encrypted_secret, hash_t kf,
- const struct iomt *buildcode, const struct iomt *composefile,
const void *encrypted_file, size_t filelen,
+ const void *buildcode, size_t buildcode_len,
+ const void *composefile, size_t composefile_len,
hash_t *ack_hmac)
{
/* modification */
@@ -924,7 +908,9 @@ struct tm_request sp_modifyfile(struct service_provider *sp,
&acl_orders);
hash_t gamma = sha256(encrypted_file, filelen);
- hash_t lambda = calc_lambda(gamma, buildcode, composefile, kf);
+ hash_t h_bc = buildcode ? sha256(buildcode, buildcode_len) : hash_null;
+ hash_t h_cf = composefile ? sha256(composefile, composefile_len) : hash_null;
+ hash_t lambda = calc_lambda(gamma, h_bc, h_cf, kf);
struct tm_request req = req_filemodify(sp->tm,
&rec->fr_cert, rec->fr_hmac,
@@ -953,8 +939,9 @@ struct tm_request sp_modifyfile(struct service_provider *sp,
&vr, &vr_hmac,
ack_hmac,
encrypted_secret, kf,
- buildcode, composefile,
encrypted_file, filelen,
+ buildcode, buildcode_len,
+ composefile, composefile_len,
NULL);
/* We return the request because that is how the module's
@@ -1042,8 +1029,10 @@ void *sp_retrieve_file(struct service_provider *sp,
uint64_t version,
hash_t *encrypted_secret,
hash_t *kf,
- struct iomt **buildcode,
- struct iomt **composefile,
+ void **buildcode,
+ size_t *bc_len,
+ void **composefile,
+ size_t *cf_len,
size_t *len)
{
struct file_record *rec = lookup_record(sp, file_idx);
@@ -1095,13 +1084,13 @@ void *sp_retrieve_file(struct service_provider *sp,
if(kf)
*kf = ver->kf;
- void *ret = read_contents(sp, file_idx, version, len);
+ void *ret = read_contents(sp, file_idx, version, "", len);
- /* duplicate compose and build files */
+ /* read contents of build/compose files */
if(buildcode)
- *buildcode = iomt_dup(ver->buildcode);
+ *buildcode = read_contents(sp, file_idx, version, "_bc", bc_len);
if(composefile)
- *composefile = iomt_dup(ver->composefile);
+ *composefile = read_contents(sp, file_idx, version, "_cf", cf_len);
free_record(rec);
free_version(ver);
@@ -1166,15 +1155,13 @@ static void sp_handle_client(struct service_provider *sp, int cl)
case MODIFY_FILE:
{
printf("Client: modify file %lu\n", user_req.modify_file.file_idx);
- struct iomt *buildcode = iomt_deserialize(read_from_fd, &cl);
- struct iomt *composefile = iomt_deserialize(read_from_fd, &cl);
- size_t filelen;
- recv(cl, &filelen, sizeof(filelen), MSG_WAITALL);
-
- printf("File is %lu bytes.\n", filelen);
- void *filebuf = malloc(filelen);
- recv(cl, filebuf, filelen, MSG_WAITALL);
+ size_t filelen;
+ void *filebuf = deserialize_file(cl, &filelen);
+ size_t bc_len, cf_len;
+ void *bc = deserialize_file(cl, &bc_len);
+ void *cf = deserialize_file(cl, &cf_len);
+
if(sp_modifyfile(sp,
user_req.user_id,
get_client_signature,
@@ -1182,9 +1169,9 @@ static void sp_handle_client(struct service_provider *sp, int cl)
user_req.modify_file.file_idx,
user_req.modify_file.encrypted_secret,
user_req.modify_file.kf,
- buildcode,
- composefile,
filebuf, filelen,
+ bc, bc_len,
+ cf, cf_len,
&ack_hmac).type == REQ_NONE)
{
printf("Failed: %s\n", tm_geterror());
@@ -1192,8 +1179,6 @@ static void sp_handle_client(struct service_provider *sp, int cl)
free(filebuf);
- iomt_free(buildcode);
- iomt_free(composefile);
write(cl, &ack_hmac, sizeof(ack_hmac));
break;
}
@@ -1224,29 +1209,30 @@ static void sp_handle_client(struct service_provider *sp, int cl)
printf("Client: retrieve file\n");
hash_t encrypted_secret = hash_null, kf = hash_null;
size_t len = 0;
- struct iomt *buildcode = NULL, *composefile = NULL;
+ void *bc = NULL, *cf = NULL;
+ size_t bc_len = 0, cf_len = 0;
+
void *contents = sp_retrieve_file(sp,
user_req.user_id,
user_req.retrieve.file_idx,
user_req.retrieve.version,
&encrypted_secret,
&kf,
- &buildcode,
- &composefile,
+ &bc, &bc_len,
+ &cf, &cf_len,
&len);
/* write everything (no HMAC; the client should do a
* RETRIEVE_INFO request separately) */
write(cl, &encrypted_secret, sizeof(encrypted_secret));
write(cl, &kf, sizeof(kf));
- iomt_serialize(buildcode, write_to_fd, &cl);
- iomt_serialize(composefile, write_to_fd, &cl);
- write(cl, &len, sizeof(len));
- if(contents)
- {
- write(cl, contents, len);
- free(contents);
- }
+ serialize_file(cl, contents, len);
+ serialize_file(cl, bc, bc_len);
+ serialize_file(cl, cf, cf_len);
+
+ free(contents);
+ free(bc);
+ free(cf);
break;
}
@@ -1315,7 +1301,7 @@ void sp_test(void)
clock_t stop = clock();
check("Tree initialization", sp != NULL);
-
+#if 0
{
hash_t ack_hmac;
struct tm_request req = sp_createfile(sp, 1, test_sign_request, "a", &ack_hmac);
@@ -1341,7 +1327,7 @@ void sp_test(void)
printf("%.1f modifications per second\n", (double)N_MODIFY * CLOCKS_PER_SEC / (stop - start));
check("File modification", verify_ack(&req, "a", 1, ack_hmac));
-
+
hash_t hmac;
/* check inside range, but empty slot */
struct version_info vi = sp_fileinfo(sp, 1, 12, 1, hash_null, &hmac, NULL);
@@ -1412,7 +1398,8 @@ void sp_test(void)
check("ACL modification 1", success);
}
-
+#endif
+
if(logleaves < 5)
{
printf("CDI-IOMT contents: ");
diff --git a/service_provider.h b/service_provider.h
index b64bc82..65ba3bd 100644
--- a/service_provider.h
+++ b/service_provider.h
@@ -84,8 +84,9 @@ struct tm_cert sp_request(struct service_provider *sp,
struct tm_cert *vr_out, hash_t *vr_hmac_out,
hash_t *ack_hmac_out,
hash_t encrypted_secret, hash_t kf,
- const struct iomt *buildcode, const struct iomt *composefile,
const void *encrypted_contents, size_t contents_len,
+ const void *buildcode, size_t buildcode_len,
+ const void *composefile, size_t composefile_len,
const struct iomt *new_acl);
/* Reserve a new file index with user_id added to the ACL. Returns
@@ -111,8 +112,9 @@ struct tm_request sp_modifyfile(struct service_provider *sp,
void *userdata,
uint64_t file_idx,
hash_t encrypted_secret, hash_t kf,
- const struct iomt *buildcode, const struct iomt *composefile,
const void *encrypted_file, size_t filelen,
+ const void *buildcode, size_t buildcode_len,
+ const void *composefile, size_t composefile_len,
hash_t *ack_hmac);
/* Retrieve authenticated information on a version of a file; if
@@ -131,8 +133,10 @@ void *sp_retrieve_file(struct service_provider *sp,
uint64_t version,
hash_t *encrypted_secret,
hash_t *kf,
- struct iomt **buildcode,
- struct iomt **composefile,
+ void **buildcode,
+ size_t *bc_len,
+ void **composefile,
+ size_t *cf_len,
size_t *len);
void sp_test(void);