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Diffstat (limited to 'src/ipcpd/udp')
-rw-r--r--src/ipcpd/udp/main.c92
1 files changed, 62 insertions, 30 deletions
diff --git a/src/ipcpd/udp/main.c b/src/ipcpd/udp/main.c
index 1f0bebf0..04c21a8b 100644
--- a/src/ipcpd/udp/main.c
+++ b/src/ipcpd/udp/main.c
@@ -62,8 +62,8 @@
#define IPCP_UDP_MAX_PACKET_SIZE 8980
#define OUR_HEADER_LEN sizeof(uint32_t) /* adds eid */
-#define IPCP_UDP_BUF_SIZE 256
-#define IPCP_UDP_MSG_SIZE 256
+#define IPCP_UDP_BUF_SIZE 8980
+#define IPCP_UDP_MSG_SIZE 8980
#define DNS_TTL 86400
#define FD_UPDATE_TIMEOUT 100 /* microseconds */
@@ -74,7 +74,8 @@
#define LOCAL_IP (udp_data.s_saddr.sin_addr.s_addr)
#define MGMT_EID 0
-#define MGMT_FRAME_SIZE 512
+#define MGMT_FRAME_SIZE (sizeof(struct mgmt_msg))
+#define MGMT_FRAME_BUF_SIZE 2048
/* Keep order for alignment. */
struct mgmt_msg {
@@ -97,7 +98,8 @@ struct mgmt_msg {
struct mgmt_frame {
struct list_head next;
struct sockaddr_in r_saddr;
- uint8_t buf[MGMT_FRAME_SIZE];
+ uint8_t buf[MGMT_FRAME_BUF_SIZE];
+ size_t len;
};
/* UDP flow */
@@ -186,15 +188,19 @@ static void udp_data_fini(void)
static int ipcp_udp_port_alloc(int skfd,
uint32_t s_eid,
const uint8_t * dst,
- qosspec_t qs)
+ qosspec_t qs,
+ const void * data,
+ size_t dlen)
{
uint8_t * buf;
struct mgmt_msg * msg;
size_t len;
+ assert(dlen > 0 ? data != NULL : data == NULL);
+
len = sizeof(*msg) + ipcp_dir_hash_len();
- buf = malloc(len);
+ buf = malloc(len + dlen);
if (buf == NULL)
return -1;
@@ -212,8 +218,9 @@ static int ipcp_udp_port_alloc(int skfd,
msg->cypher_s = hton16(qs.cypher_s);
memcpy(msg + 1, dst, ipcp_dir_hash_len());
+ memcpy(buf + len, data, dlen);
- if (write(skfd, msg, len) < 0) {
+ if (write(skfd, msg, len + dlen) < 0) {
free(buf);
return -1;
}
@@ -223,14 +230,16 @@ static int ipcp_udp_port_alloc(int skfd,
return 0;
}
-static int ipcp_udp_port_alloc_resp(int skfd,
- uint32_t s_eid,
- uint32_t d_eid,
- int8_t response)
+static int ipcp_udp_port_alloc_resp(int skfd,
+ uint32_t s_eid,
+ uint32_t d_eid,
+ int8_t response,
+ const void * data,
+ size_t len)
{
struct mgmt_msg * msg;
- msg = malloc(sizeof(*msg));
+ msg = malloc(sizeof(*msg) + len);
if (msg == NULL)
return -1;
@@ -240,7 +249,9 @@ static int ipcp_udp_port_alloc_resp(int skfd,
msg->d_eid = hton32(d_eid);
msg->response = response;
- if (write(skfd, msg, sizeof(*msg)) < 0) {
+ memcpy(msg + 1, data, len);
+
+ if (write(skfd, msg, sizeof(*msg) + len) < 0) {
free(msg);
return -1;
}
@@ -253,7 +264,9 @@ static int ipcp_udp_port_alloc_resp(int skfd,
static int ipcp_udp_port_req(struct sockaddr_in * c_saddr,
int d_eid,
const uint8_t * dst,
- qosspec_t qs)
+ qosspec_t qs,
+ const void * data,
+ size_t len)
{
struct timespec ts = {0, FD_UPDATE_TIMEOUT * 1000};
struct timespec abstime;
@@ -294,7 +307,7 @@ static int ipcp_udp_port_req(struct sockaddr_in * c_saddr,
}
/* reply to IRM */
- fd = ipcp_flow_req_arr(dst, ipcp_dir_hash_len(), qs);
+ fd = ipcp_flow_req_arr(dst, ipcp_dir_hash_len(), qs, data, len);
if (fd < 0) {
pthread_mutex_unlock(&ipcpi.alloc_lock);
log_err("Could not get new flow from IRMd.");
@@ -320,9 +333,11 @@ static int ipcp_udp_port_req(struct sockaddr_in * c_saddr,
return 0;
}
-static int ipcp_udp_port_alloc_reply(uint32_t s_eid,
- uint32_t d_eid,
- int8_t response)
+static int ipcp_udp_port_alloc_reply(uint32_t s_eid,
+ uint32_t d_eid,
+ int8_t response,
+ const void * data,
+ size_t len)
{
struct sockaddr_in t_saddr;
socklen_t t_saddr_len;
@@ -356,7 +371,7 @@ static int ipcp_udp_port_alloc_reply(uint32_t s_eid,
return -1;
}
- if (ipcp_flow_alloc_reply(s_eid, response) < 0) {
+ if (ipcp_flow_alloc_reply(s_eid, response, data, len) < 0) {
log_dbg("Failed to reply to flow allocation.");
return -1;
}
@@ -368,15 +383,21 @@ static int ipcp_udp_port_alloc_reply(uint32_t s_eid,
}
static int ipcp_udp_mgmt_frame(const uint8_t * buf,
+ size_t len,
struct sockaddr_in c_saddr)
{
struct mgmt_msg * msg;
+ size_t msg_len;
qosspec_t qs;
msg = (struct mgmt_msg *) buf;
switch (msg->code) {
case FLOW_REQ:
+ msg_len = sizeof(*msg) + ipcp_dir_hash_len();
+
+ assert(len >= msg_len);
+
qs.delay = ntoh32(msg->delay);
qs.bandwidth = ntoh64(msg->bandwidth);
qs.availability = msg->availability;
@@ -387,11 +408,17 @@ static int ipcp_udp_mgmt_frame(const uint8_t * buf,
qs.cypher_s = ntoh16(msg->cypher_s);
return ipcp_udp_port_req(&c_saddr, ntoh32(msg->s_eid),
- (uint8_t *) (msg + 1), qs);
+ (uint8_t *) (msg + 1), qs,
+ buf + msg_len,
+ len - msg_len);
case FLOW_REPLY:
+ assert(len >= sizeof(*msg));
+
return ipcp_udp_port_alloc_reply(ntoh32(msg->s_eid),
ntoh32(msg->d_eid),
- msg->response);
+ msg->response,
+ buf + sizeof(*msg),
+ len - sizeof(*msg));
default:
log_err("Unknown message received %d.", msg->code);
return -1;
@@ -421,7 +448,7 @@ static void * ipcp_udp_mgmt_handler(void * o)
pthread_mutex_unlock(&udp_data.mgmt_lock);
- ipcp_udp_mgmt_frame(frame->buf, frame->r_saddr);
+ ipcp_udp_mgmt_frame(frame->buf, frame->len, frame->r_saddr);
free(frame);
}
@@ -468,8 +495,8 @@ static void * ipcp_udp_packet_reader(void * o)
/* pass onto mgmt queue */
if (eid == MGMT_EID) {
- if (n > IPCP_UDP_MSG_SIZE) {
- log_warn("Dropped oversize management frame.");
+ if ((size_t) n < MGMT_FRAME_SIZE) {
+ log_warn("Dropped runt mgmt frame.");
continue;
}
@@ -479,6 +506,7 @@ static void * ipcp_udp_packet_reader(void * o)
memcpy(frame->buf, buf, n);
memcpy(&frame->r_saddr, &r_saddr, sizeof(r_saddr));
+ frame->len = n;
pthread_mutex_lock(&udp_data.mgmt_lock);
list_add(&frame->next, &udp_data.mgmt_frames);
@@ -962,7 +990,9 @@ static int ipcp_udp_query(const uint8_t * hash)
static int ipcp_udp_flow_alloc(int fd,
const uint8_t * dst,
- qosspec_t qs)
+ qosspec_t qs,
+ const void * data,
+ size_t len)
{
struct sockaddr_in r_saddr; /* Server address */
struct sockaddr_in c_saddr; /* Client address */
@@ -1026,7 +1056,7 @@ static int ipcp_udp_flow_alloc(int fd,
return -1;
}
- if (ipcp_udp_port_alloc(skfd, fd, dst, qs) < 0) {
+ if (ipcp_udp_port_alloc(skfd, fd, dst, qs, data, len) < 0) {
log_err("Could not allocate port.");
close(skfd);
return -1;
@@ -1047,15 +1077,17 @@ static int ipcp_udp_flow_alloc(int fd,
return 0;
}
-static int ipcp_udp_flow_alloc_resp(int fd,
- int response)
+static int ipcp_udp_flow_alloc_resp(int fd,
+ int resp,
+ const void * data,
+ size_t len)
{
struct timespec ts = {0, FD_UPDATE_TIMEOUT * 1000};
struct timespec abstime;
int skfd;
int d_eid;
- if (response)
+ if (resp)
return 0;
clock_gettime(PTHREAD_COND_CLOCK, &abstime);
@@ -1088,7 +1120,7 @@ static int ipcp_udp_flow_alloc_resp(int fd,
pthread_rwlock_unlock(&udp_data.flows_lock);
- if (ipcp_udp_port_alloc_resp(skfd, d_eid, fd, response) < 0) {
+ if (ipcp_udp_port_alloc_resp(skfd, d_eid, fd, resp, data, len) < 0) {
pthread_rwlock_rdlock(&udp_data.flows_lock);
fset_del(udp_data.np1_flows, fd);
pthread_rwlock_unlock(&udp_data.flows_lock);
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-30 23:48:27 +0000