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authorDimitri Staessens <dimitri@ouroboros.rocks>2020-02-24 22:30:22 +0100
committerSander Vrijders <sander@ouroboros.rocks>2020-02-25 08:21:09 +0100
commitfe6b60909d455abdac7885ceaba1097749e7aeb1 (patch)
treeffd3f3c6a2f15a1af5b393d8a5c068304b29a636 /src/lib
parent11fbe2f998a39ca156e2c806fd78f2af781836a4 (diff)
downloadouroboros-fe6b60909d455abdac7885ceaba1097749e7aeb1.tar.gz
ouroboros-fe6b60909d455abdac7885ceaba1097749e7aeb1.zip
lib, ipcpd: piggyback ECDHE on flow allocation
The initial implementation for the ECDHE key exchange was doing the key exchange after a flow was established. The public keys are now sent allowg on the flow allocation messages, so that an encrypted tunnel can be created within 1 RTT. The flow allocation steps had to be extended to pass the opaque data ('piggybacking'). Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
Diffstat (limited to 'src/lib')
-rw-r--r--src/lib/crypt.c197
-rw-r--r--src/lib/dev.c252
-rw-r--r--src/lib/frct.c2
-rw-r--r--src/lib/ipcpd_messages.proto13
-rw-r--r--src/lib/irmd_messages.proto3
5 files changed, 233 insertions, 234 deletions
diff --git a/src/lib/crypt.c b/src/lib/crypt.c
index 929d73f9..1fa12bb8 100644
--- a/src/lib/crypt.c
+++ b/src/lib/crypt.c
@@ -27,9 +27,9 @@
#include <openssl/ec.h>
#include <openssl/pem.h>
-#define MSGBUFSZ 2048
+#include <openssl/bio.h>
+
#define IVSZ 16
-#define DH_TIMEO 2 /* seconds */
/* SYMMKEYSZ defined in dev.c */
/*
@@ -90,7 +90,7 @@ static int __openssl_ecdh_derive_secret(EVP_PKEY * kp,
return -ECRYPT;
}
-static int __openssl_ecdh_gen_key(EVP_PKEY ** kp)
+static int __openssl_ecdh_gen_key(void ** kp)
{
EVP_PKEY_CTX * ctx = NULL;
EVP_PKEY_CTX * kctx = NULL;
@@ -121,7 +121,7 @@ static int __openssl_ecdh_gen_key(EVP_PKEY ** kp)
if (ret != 1)
goto fail_keygen;
- ret = EVP_PKEY_keygen(kctx, kp);
+ ret = EVP_PKEY_keygen(kctx, (EVP_PKEY **) kp);
if (ret != 1)
goto fail_keygen;
@@ -141,114 +141,57 @@ static int __openssl_ecdh_gen_key(EVP_PKEY ** kp)
return -ECRYPT;
}
-/* ECDH from the server side. */
-static int openssl_ecdh_srv(int fd,
- uint8_t * s)
+static ssize_t openssl_ecdh_pkp_create(void ** pkp,
+ uint8_t * pk)
{
- EVP_PKEY * kp = NULL;
- EVP_PKEY * pub = NULL;
- uint8_t buf[MSGBUFSZ];
- ssize_t len;
- int buf_sz;
uint8_t * pos;
- struct timespec timeo = {DH_TIMEO,0};
-
- assert(s != NULL);
+ ssize_t len;
- (void) fd;
- (void) s;
+ assert(pkp != NULL);
+ assert(*pkp == NULL);
+ assert(pk != NULL);
- if (__openssl_ecdh_gen_key(&kp) < 0)
- goto fail_gen_key;
+ if (__openssl_ecdh_gen_key(pkp) < 0)
+ return -ECRYPT;
- fccntl(fd, FLOWSRCVTIMEO, &timeo);
+ assert(*pkp != NULL);
- len = flow_read(fd, buf, MSGBUFSZ);
+ pos = pk; /* i2d_PUBKEY increments the pointer, don't use buf! */
+ len = i2d_PUBKEY(*pkp, &pos);
if (len < 0) {
- fccntl(fd, FLOWSRCVTIMEO, NULL);
- goto fail_get_key;
+ EVP_PKEY_free(*pkp);
+ return -ECRYPT;
}
- fccntl(fd, FLOWSRCVTIMEO, NULL);
-
- pos = buf; /* i2d_PUBKEY increments the pointer, don't use buf! */
- pub = d2i_PUBKEY(NULL, (const uint8_t **) &pos, (long) len);
-
- pos = buf; /* i2d_PUBKEY increments the pointer, don't use buf! */
- buf_sz = i2d_PUBKEY(kp, &pos);
- if (buf_sz < 0)
- goto fail_get_key;
-
- if (flow_write(fd, buf, (size_t) buf_sz) < 0)
- goto fail_get_key;
-
- if (__openssl_ecdh_derive_secret(kp, pub, s) < 0)
- goto fail_get_key;
-
- EVP_PKEY_free(kp);
- EVP_PKEY_free(pub);
-
- return 0;
-
- fail_get_key:
- EVP_PKEY_free(kp);
- fail_gen_key:
- return -ECRYPT;
+ return len;
}
-/* ECDH from the client side. */
-static int openssl_ecdh_clt(int fd,
- uint8_t * s)
+static void openssl_ecdh_pkp_destroy(void * pkp)
{
- EVP_PKEY * kp = NULL;
- EVP_PKEY * pub = NULL;
- uint8_t buf[MSGBUFSZ];
- int buf_sz;
- uint8_t * pos;
- ssize_t len;
- struct timespec timeo = {DH_TIMEO,0};
-
- assert(s != NULL);
-
- (void) fd;
- (void) s;
-
- if (__openssl_ecdh_gen_key(&kp) < 0)
- goto fail_gen_key;
-
- pos = buf; /* i2d_PUBKEY increments the pointer, don't use buf! */
- buf_sz = i2d_PUBKEY(kp, &pos);
- if (buf_sz < 0)
- goto fail_get_key;
-
- if (flow_write(fd, buf, (size_t) buf_sz) < 0)
- goto fail_get_key;
-
- fccntl(fd, FLOWSRCVTIMEO, &timeo);
-
- len = flow_read(fd, buf, MSGBUFSZ);
- if (len < 0) {
- fccntl(fd, FLOWSRCVTIMEO, NULL);
- goto fail_get_key;
- }
+ EVP_PKEY_free((EVP_PKEY *) pkp);
+}
- fccntl(fd, FLOWSRCVTIMEO, NULL);
+static int openssl_ecdh_derive(void * pkp,
+ uint8_t * pk,
+ size_t len,
+ uint8_t * s)
+{
+ uint8_t * pos;
+ EVP_PKEY * pub;
- pos = buf; /* i2d_PUBKEY increments the pointer, don't use buf! */
+ pos = pk; /* d2i_PUBKEY increments the pointer, don't use key ptr! */
pub = d2i_PUBKEY(NULL, (const uint8_t **) &pos, (long) len);
+ if (pub == NULL)
+ return -ECRYPT;
- if (__openssl_ecdh_derive_secret(kp, pub, s) < 0)
- goto fail_get_key;
+ if (__openssl_ecdh_derive_secret(pkp, pub, s) < 0) {
+ EVP_PKEY_free(pub);
+ return -ECRYPT;
+ }
- EVP_PKEY_free(kp);
EVP_PKEY_free(pub);
return 0;
-
- fail_get_key:
- EVP_PKEY_free(kp);
- fail_gen_key:
- return -ECRYPT;
}
/*
@@ -394,51 +337,64 @@ static int openssl_decrypt(struct flow * f,
}
-static int openssl_crypt_init(struct flow * f)
+static int openssl_crypt_init(void ** ctx)
{
- f->ctx = EVP_CIPHER_CTX_new();
- if (f->ctx == NULL)
- goto fail_new;
+ *ctx = EVP_CIPHER_CTX_new();
+ if (*ctx == NULL)
+ return -ECRYPT;
return 0;
-
- fail_new:
- return -ECRYPT;
}
-static void openssl_crypt_fini(struct flow * f)
+static void openssl_crypt_fini(void * ctx)
{
- EVP_CIPHER_CTX_free(f->ctx);
- f->ctx = NULL;
+ EVP_CIPHER_CTX_free(ctx);
}
#endif /* HAVE_OPENSSL */
-static int crypt_dh_srv(int fd,
- uint8_t * s)
+static int crypt_dh_pkp_create(void ** pkp,
+ uint8_t * pk)
{
#ifdef HAVE_OPENSSL
- return openssl_ecdh_srv(fd, s);
+ assert(pkp != NULL);
+ *pkp = NULL;
+ return openssl_ecdh_pkp_create(pkp, pk);
#else
- (void) fd;
+ (void) pkp;
+ (void) pk;
- memset(s, 0, SYMMKEYSZ);
+ memset(pk, 0, MSGBUFSZ);
return -ECRYPT;
#endif
}
-static int crypt_dh_clt(int fd,
- uint8_t * s)
+static void crypt_dh_pkp_destroy(void * pkp)
{
#ifdef HAVE_OPENSSL
- return openssl_ecdh_clt(fd, s);
+ openssl_ecdh_pkp_destroy(pkp);
#else
- (void) fd;
+ (void) pkp;
+ return 0;
+#endif
+}
+
+static int crypt_dh_derive(void * pkp,
+ uint8_t * pk,
+ size_t len,
+ uint8_t * s)
+{
+#ifdef HAVE_OPENSSL
+ return openssl_ecdh_derive(pkp, pk, len, s);
+#else
+ (void) pkp;
+ (void) pk;
+ (void) len;
memset(s, 0, SYMMKEYSZ);
- return 0;
+ return -ECRYPT;
#endif
}
@@ -464,27 +420,28 @@ static int crypt_decrypt(struct flow * f,
(void) f;
(void) sdb;
- return 0;
+ return -ECRYPT;
#endif
}
-
-static int crypt_init(struct flow * f)
+static int crypt_init(void ** ctx)
{
#ifdef HAVE_OPENSSL
- return openssl_crypt_init(f);
+ return openssl_crypt_init(ctx);
#else
- (void) f;
+ assert(ctx != NULL);
+ *ctx = NULL;
return 0;
#endif
}
-static void crypt_fini(struct flow * f)
+static void crypt_fini(void * ctx)
{
#ifdef HAVE_OPENSSL
- openssl_crypt_fini(f);
+ openssl_crypt_fini(ctx);
#else
- (void) f;
+ assert(ctx == NULL);
+ (void) ctx;
#endif
}
diff --git a/src/lib/dev.c b/src/lib/dev.c
index 43c7e98c..c427e20c 100644
--- a/src/lib/dev.c
+++ b/src/lib/dev.c
@@ -56,15 +56,16 @@
#endif
/* Partial read information. */
-#define NO_PART -1
-#define DONE_PART -2
+#define NO_PART -1
+#define DONE_PART -2
#define CRCLEN (sizeof(uint32_t))
#define SECMEMSZ 16384
-#define SYMMKEYSZ 32
+#define SYMMKEYSZ 32
+#define MSGBUFSZ 2048
struct flow_set {
- size_t idx;
+ size_t idx;
};
struct fqueue {
@@ -98,7 +99,7 @@ struct flow {
struct shm_flow_set * set;
int flow_id;
int oflags;
- qosspec_t spec;
+ qosspec_t qs;
ssize_t part_idx;
void * ctx;
@@ -274,15 +275,16 @@ static void flow_fini(int fd)
if (ai.flows[fd].frcti != NULL)
frcti_destroy(ai.flows[fd].frcti);
- if (ai.flows[fd].spec.cypher_s > 0)
- crypt_fini(&ai.flows[fd]);
+ if (ai.flows[fd].ctx != NULL)
+ crypt_fini(ai.flows[fd].ctx);
flow_clear(fd);
}
static int flow_init(int flow_id,
pid_t pid,
- qosspec_t qs)
+ qosspec_t qs,
+ uint8_t * s)
{
int fd;
int err = -ENOMEM;
@@ -311,10 +313,15 @@ static int flow_init(int flow_id,
ai.flows[fd].oflags = FLOWFDEFAULT;
ai.flows[fd].pid = pid;
ai.flows[fd].part_idx = NO_PART;
- ai.flows[fd].spec = qs;
+ ai.flows[fd].qs = qs;
- if (qs.cypher_s > 0 && crypt_init(&ai.flows[fd]) < 0)
- goto fail_crypt;
+ if (qs.cypher_s > 0) {
+ assert(s != NULL);
+ if (crypt_init(&ai.flows[fd].ctx) < 0)
+ goto fail_ctx;
+
+ memcpy(ai.flows[fd].key, s, SYMMKEYSZ);
+ }
ai.ports[flow_id].fd = fd;
@@ -324,7 +331,7 @@ static int flow_init(int flow_id,
return fd;
- fail_crypt:
+ fail_ctx:
shm_flow_set_close(ai.flows[fd].set);
fail_set:
shm_rbuff_close(ai.flows[fd].tx_rb);
@@ -521,6 +528,13 @@ int flow_accept(qosspec_t * qs,
irm_msg_t msg = IRM_MSG__INIT;
irm_msg_t * recv_msg;
int fd;
+ void * pkp; /* public key pair */
+ uint8_t s[SYMMKEYSZ]; /* secret key for flow */
+ uint8_t buf[MSGBUFSZ];
+ int err = -EIRMD;
+ ssize_t key_len;
+
+ memset(s, 0, SYMMKEYSZ);
msg.code = IRM_MSG_CODE__IRM_FLOW_ACCEPT;
msg.has_pid = true;
@@ -533,29 +547,48 @@ int flow_accept(qosspec_t * qs,
msg.timeo_nsec = timeo->tv_nsec;
}
+ key_len = crypt_dh_pkp_create(&pkp, buf);
+ if (key_len < 0) {
+ err = -ECRYPT;
+ goto fail_crypt_pkp;
+ }
+
+ msg.has_pk = true;
+ msg.pk.data = buf;
+ msg.pk.len = (uint32_t) key_len;
+
+ pthread_cleanup_push(crypt_dh_pkp_destroy, pkp);
+
recv_msg = send_recv_irm_msg(&msg);
+
+ pthread_cleanup_pop(false);
+
if (recv_msg == NULL)
- return -EIRMD;
+ goto fail_recv;
- if (!recv_msg->has_result) {
- irm_msg__free_unpacked(recv_msg, NULL);
- return -EIRMD;
- }
+ if (!recv_msg->has_result)
+ goto fail_result;
if (recv_msg->result != 0) {
- int res = recv_msg->result;
- irm_msg__free_unpacked(recv_msg, NULL);
- return res;
+ err = recv_msg->result;
+ goto fail_result;
}
if (!recv_msg->has_pid || !recv_msg->has_flow_id ||
- recv_msg->qosspec == NULL) {
- irm_msg__free_unpacked(recv_msg, NULL);
- return -EIRMD;
+ recv_msg->qosspec == NULL)
+ goto fail_result;
+
+ if (recv_msg->pk.len != 0 &&
+ crypt_dh_derive(pkp, recv_msg->pk.data,
+ recv_msg->pk.len, s) < 0) {
+ err = -ECRYPT;
+ goto fail_result;
}
+ crypt_dh_pkp_destroy(pkp);
+
fd = flow_init(recv_msg->flow_id, recv_msg->pid,
- msg_to_spec(recv_msg->qosspec));
+ msg_to_spec(recv_msg->qosspec), s);
irm_msg__free_unpacked(recv_msg, NULL);
@@ -566,7 +599,7 @@ int flow_accept(qosspec_t * qs,
assert(ai.flows[fd].frcti == NULL);
- if (ai.flows[fd].spec.in_order != 0) {
+ if (ai.flows[fd].qs.in_order != 0) {
ai.flows[fd].frcti = frcti_create(fd);
if (ai.flows[fd].frcti == NULL) {
pthread_rwlock_unlock(&ai.lock);
@@ -576,36 +609,18 @@ int flow_accept(qosspec_t * qs,
}
if (qs != NULL)
- *qs = ai.flows[fd].spec;
+ *qs = ai.flows[fd].qs;
pthread_rwlock_unlock(&ai.lock);
- /* TODO: piggyback public keys at flow allocation. */
- if (ai.flows[fd].spec.cypher_s > 0) {
- uint8_t key[SYMMKEYSZ];
- uint16_t tmp;
-
- pthread_rwlock_wrlock(&ai.lock);
-
- tmp = ai.flows[fd].spec.cypher_s;
- ai.flows[fd].spec.cypher_s = 0;
-
- pthread_rwlock_unlock(&ai.lock);
-
- if (crypt_dh_srv(fd, key) < 0) {
- flow_dealloc(fd);
- return -ECRYPT;
- }
-
- pthread_rwlock_wrlock(&ai.lock);
-
- ai.flows[fd].spec.cypher_s = tmp;
- memcpy(ai.flows[fd].key, key, SYMMKEYSZ);
-
- pthread_rwlock_unlock(&ai.lock);
- }
-
return fd;
+
+ fail_result:
+ irm_msg__free_unpacked(recv_msg, NULL);
+ fail_recv:
+ crypt_dh_pkp_destroy(pkp);
+ fail_crypt_pkp:
+ return err;
}
static int __flow_alloc(const char * dst,
@@ -617,15 +632,19 @@ static int __flow_alloc(const char * dst,
qosspec_msg_t qs_msg = QOSSPEC_MSG__INIT;
irm_msg_t * recv_msg;
int fd;
+ void * pkp = NULL; /* public key pair */
+ uint8_t s[SYMMKEYSZ]; /* secret key for flow */
+ uint8_t buf[MSGBUFSZ];
+ int err = -EIRMD;
+
+ memset(s, 0, SYMMKEYSZ);
#ifdef QOS_DISABLE_CRC
if (qs != NULL)
qs->ber = 1;
#endif
- if (join)
- msg.code = IRM_MSG_CODE__IRM_FLOW_JOIN;
- else
- msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC;
+ msg.code = join ? IRM_MSG_CODE__IRM_FLOW_JOIN
+ : IRM_MSG_CODE__IRM_FLOW_ALLOC;
msg.dst = (char *) dst;
msg.has_pid = true;
msg.pid = ai.pid;
@@ -639,28 +658,52 @@ static int __flow_alloc(const char * dst,
msg.timeo_nsec = timeo->tv_nsec;
}
+ if (!join && qs != NULL && qs->cypher_s != 0) {
+ ssize_t key_len;
+
+ key_len = crypt_dh_pkp_create(&pkp, buf);
+ if (key_len < 0) {
+ err = -ECRYPT;
+ goto fail_crypt_pkp;
+ }
+
+ msg.has_pk = true;
+ msg.pk.data = buf;
+ msg.pk.len = (uint32_t) key_len;
+ }
+
recv_msg = send_recv_irm_msg(&msg);
if (recv_msg == NULL)
- return -EIRMD;
+ goto fail_send;
- if (!recv_msg->has_result) {
- irm_msg__free_unpacked(recv_msg, NULL);
- return -EIRMD;
- }
+ if (!recv_msg->has_result)
+ goto fail_result;
if (recv_msg->result != 0) {
- int res = recv_msg->result;
- irm_msg__free_unpacked(recv_msg, NULL);
- return res;
+ err = recv_msg->result;
+ goto fail_result;
}
- if (!recv_msg->has_pid || !recv_msg->has_flow_id) {
- irm_msg__free_unpacked(recv_msg, NULL);
- return -EIRMD;
+ if (!recv_msg->has_pid || !recv_msg->has_flow_id)
+ goto fail_result;
+
+ if (!join && qs != NULL && qs->cypher_s != 0) {
+ if (!recv_msg->has_pk || recv_msg->pk.len == 0) {
+ err = -ECRYPT;
+ goto fail_result;
+ }
+
+ if (crypt_dh_derive(pkp, recv_msg->pk.data,
+ recv_msg->pk.len, s) < 0) {
+ err = -ECRYPT;
+ goto fail_result;
+ }
+
+ crypt_dh_pkp_destroy(pkp);
}
fd = flow_init(recv_msg->flow_id, recv_msg->pid,
- qs == NULL ? qos_raw : *qs);
+ qs == NULL ? qos_raw : *qs, s);
irm_msg__free_unpacked(recv_msg, NULL);
@@ -671,7 +714,7 @@ static int __flow_alloc(const char * dst,
assert(ai.flows[fd].frcti == NULL);
- if (ai.flows[fd].spec.in_order != 0) {
+ if (ai.flows[fd].qs.in_order != 0) {
ai.flows[fd].frcti = frcti_create(fd);
if (ai.flows[fd].frcti == NULL) {
pthread_rwlock_unlock(&ai.lock);
@@ -682,32 +725,14 @@ static int __flow_alloc(const char * dst,
pthread_rwlock_unlock(&ai.lock);
- /* TODO: piggyback public keys at flow allocation. */
- if (!join && ai.flows[fd].spec.cypher_s > 0) {
- uint8_t key[SYMMKEYSZ];
- uint16_t tmp;
-
- pthread_rwlock_wrlock(&ai.lock);
-
- tmp = ai.flows[fd].spec.cypher_s;
- ai.flows[fd].spec.cypher_s = 0;
-
- pthread_rwlock_unlock(&ai.lock);
-
- if (crypt_dh_clt(fd, key) < 0) {
- flow_dealloc(fd);
- return -ECRYPT;
- }
-
- pthread_rwlock_wrlock(&ai.lock);
-
- ai.flows[fd].spec.cypher_s = tmp;
- memcpy(ai.flows[fd].key, key, SYMMKEYSZ);
-
- pthread_rwlock_unlock(&ai.lock);
- }
-
return fd;
+
+ fail_result:
+ irm_msg__free_unpacked(recv_msg, NULL);
+ fail_send:
+ crypt_dh_pkp_destroy(pkp);
+ fail_crypt_pkp:
+ return err;
}
int flow_alloc(const char * dst,
@@ -721,6 +746,9 @@ int flow_join(const char * dst,
qosspec_t * qs,
const struct timespec * timeo)
{
+ if (qs != NULL && qs->cypher_s != 0)
+ return -ECRYPT;
+
return __flow_alloc(dst, qs, timeo, true);
}
@@ -836,7 +864,7 @@ int fccntl(int fd,
qs = va_arg(l, qosspec_t *);
if (qs == NULL)
goto einval;
- *qs = flow->spec;
+ *qs = flow->qs;
break;
case FLOWGRXQLEN:
qlen = va_arg(l, size_t *);
@@ -1001,7 +1029,7 @@ ssize_t flow_write(int fd,
}
pthread_rwlock_wrlock(&ai.lock);
- if (flow->spec.cypher_s > 0)
+ if (flow->qs.cypher_s > 0)
if (crypt_encrypt(flow, sdb) < 0) {
pthread_rwlock_unlock(&ai.lock);
shm_rdrbuff_remove(ai.rdrb, idx);
@@ -1009,7 +1037,7 @@ ssize_t flow_write(int fd,
}
pthread_rwlock_unlock(&ai.lock);
- if (flow->spec.ber == 0 && add_crc(sdb) != 0) {
+ if (flow->qs.ber == 0 && add_crc(sdb) != 0) {
shm_rdrbuff_remove(ai.rdrb, idx);
return -ENOMEM;
}
@@ -1089,13 +1117,13 @@ ssize_t flow_read(int fd,
return idx;
sdb = shm_rdrbuff_get(ai.rdrb, idx);
- if (flow->spec.ber == 0 && chk_crc(sdb) != 0) {
+ if (flow->qs.ber == 0 && chk_crc(sdb) != 0) {
shm_rdrbuff_remove(ai.rdrb, idx);
continue;
}
pthread_rwlock_wrlock(&ai.lock);
- if (flow->spec.cypher_s > 0)
+ if (flow->qs.cypher_s > 0)
if (crypt_decrypt(flow, sdb) < 0) {
pthread_rwlock_unlock(&ai.lock);
shm_rdrbuff_remove(ai.rdrb,
@@ -1333,7 +1361,8 @@ int np1_flow_alloc(pid_t n_pid,
int flow_id,
qosspec_t qs)
{
- return flow_init(flow_id, n_pid, qs);
+ qs.cypher_s = 0; /* No encryption ctx for np1 */
+ return flow_init(flow_id, n_pid, qs, NULL);
}
int np1_flow_dealloc(int flow_id)
@@ -1394,7 +1423,9 @@ int ipcp_create_r(int result)
int ipcp_flow_req_arr(const uint8_t * dst,
size_t len,
- qosspec_t qs)
+ qosspec_t qs,
+ const void * data,
+ size_t dlen)
{
irm_msg_t msg = IRM_MSG__INIT;
irm_msg_t * recv_msg;
@@ -1411,6 +1442,9 @@ int ipcp_flow_req_arr(const uint8_t * dst,
msg.hash.data = (uint8_t *) dst;
qs_msg = spec_to_msg(&qs);
msg.qosspec = &qs_msg;
+ msg.has_pk = true;
+ msg.pk.data = (uint8_t *) data;
+ msg.pk.len = dlen;
recv_msg = send_recv_irm_msg(&msg);
if (recv_msg == NULL)
@@ -1426,15 +1460,18 @@ int ipcp_flow_req_arr(const uint8_t * dst,
return -1;
}
- fd = flow_init(recv_msg->flow_id, recv_msg->pid, qs);
+ qs.cypher_s = 0; /* No encryption ctx for np1 */
+ fd = flow_init(recv_msg->flow_id, recv_msg->pid, qs, NULL);
irm_msg__free_unpacked(recv_msg, NULL);
return fd;
}
-int ipcp_flow_alloc_reply(int fd,
- int response)
+int ipcp_flow_alloc_reply(int fd,
+ int response,
+ const void * data,
+ size_t len)
{
irm_msg_t msg = IRM_MSG__INIT;
irm_msg_t * recv_msg;
@@ -1444,6 +1481,9 @@ int ipcp_flow_alloc_reply(int fd,
msg.code = IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY;
msg.has_flow_id = true;
+ msg.has_pk = true;
+ msg.pk.data = (uint8_t *) data;
+ msg.pk.len = (uint32_t) len;
pthread_rwlock_rdlock(&ai.lock);
@@ -1503,7 +1543,7 @@ int ipcp_flow_read(int fd,
if (idx < 0)
return idx;
*sdb = shm_rdrbuff_get(ai.rdrb, idx);
- if (flow->spec.ber == 0 && chk_crc(*sdb) != 0)
+ if (flow->qs.ber == 0 && chk_crc(*sdb) != 0)
continue;
} while (frcti_rcv(flow->frcti, *sdb) != 0);
@@ -1543,7 +1583,7 @@ int ipcp_flow_write(int fd,
return -ENOMEM;
}
- if (flow->spec.ber == 0 && add_crc(sdb) != 0) {
+ if (flow->qs.ber == 0 && add_crc(sdb) != 0) {
pthread_rwlock_unlock(&ai.lock);
shm_rdrbuff_remove(ai.rdrb, idx);
return -ENOMEM;
@@ -1613,7 +1653,7 @@ int ipcp_flow_get_qoscube(int fd,
assert(ai.flows[fd].flow_id >= 0);
- *cube = qos_spec_to_cube(ai.flows[fd].spec);
+ *cube = qos_spec_to_cube(ai.flows[fd].qs);
pthread_rwlock_unlock(&ai.lock);
diff --git a/src/lib/frct.c b/src/lib/frct.c
index 541cce42..e4b858d0 100644
--- a/src/lib/frct.c
+++ b/src/lib/frct.c
@@ -120,7 +120,7 @@ static struct frcti * frcti_create(int fd)
frcti->rttseq = 0;
frcti->probe = false;
- if (ai.flows[fd].spec.loss == 0) {
+ if (ai.flows[fd].qs.loss == 0) {
frcti->snd_cr.cflags |= FRCTFRTX;
frcti->rcv_cr.cflags |= FRCTFRTX;
}
diff --git a/src/lib/ipcpd_messages.proto b/src/lib/ipcpd_messages.proto
index 6d31f3b9..b0efe9ab 100644
--- a/src/lib/ipcpd_messages.proto
+++ b/src/lib/ipcpd_messages.proto
@@ -46,10 +46,11 @@ message ipcp_msg {
optional int32 flow_id = 3;
optional string dst = 4;
optional qosspec_msg qosspec = 5;
- optional ipcp_config_msg conf = 6;
- optional int32 pid = 7;
- optional layer_info_msg layer_info = 8;
- optional int32 response = 9;
- optional string comp = 10;
- optional int32 result = 11;
+ optional bytes pk = 6; /* piggyback */
+ optional ipcp_config_msg conf = 7;
+ optional int32 pid = 8;
+ optional layer_info_msg layer_info = 9;
+ optional int32 response = 10;
+ optional string comp = 11;
+ optional int32 result = 12;
};
diff --git a/src/lib/irmd_messages.proto b/src/lib/irmd_messages.proto
index 0ac58af9..c8749699 100644
--- a/src/lib/irmd_messages.proto
+++ b/src/lib/irmd_messages.proto
@@ -76,5 +76,6 @@ message irm_msg {
optional uint32 timeo_sec = 16;
optional uint32 timeo_nsec = 17;
optional string comp = 18;
- optional sint32 result = 19;
+ optional bytes pk = 19; /* piggyback */
+ optional sint32 result = 20;
};