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-rw-r--r--include/ouroboros/utils.h4
-rw-r--r--src/irmd/ipcp.c37
-rw-r--r--src/irmd/ipcp.h14
-rw-r--r--src/irmd/irm_flow.c30
-rw-r--r--src/irmd/irm_flow.h4
-rw-r--r--src/irmd/main.c206
6 files changed, 138 insertions, 157 deletions
diff --git a/include/ouroboros/utils.h b/include/ouroboros/utils.h
index bd174149..f5f8610d 100644
--- a/include/ouroboros/utils.h
+++ b/include/ouroboros/utils.h
@@ -25,16 +25,20 @@
#include <stdint.h>
#include <unistd.h>
+#include <string.h>
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define ABS(a) ((a) > 0 ? (a) : -(a))
+#define clrbuf(buf) do { memset(&(buf), 0, sizeof(buf)); } while (0);
+#define freebuf(buf) do { free((buf).data); clrbuf(buf); } while (0);
typedef struct {
uint8_t * data;
size_t len;
} buffer_t;
+
/*
* Returns the number of characters a uint would
* need when represented as a string
diff --git a/src/irmd/ipcp.c b/src/irmd/ipcp.c
index c062809c..360934b0 100644
--- a/src/irmd/ipcp.c
+++ b/src/irmd/ipcp.c
@@ -99,6 +99,7 @@ ipcp_msg_t * send_recv_ipcp_msg(pid_t pid,
default:
tv.tv_sec = SOCKET_TIMEOUT / 1000;
tv.tv_usec = (SOCKET_TIMEOUT % 1000) * 1000;
+
break;
}
@@ -176,7 +177,7 @@ pid_t ipcp_create(const char * name,
argv[4] = NULL;
- if (posix_spawn(&pid, argv[0], NULL, NULL, argv, NULL)) {
+ if (posix_spawn(&pid, argv[0], NULL, NULL, argv, NULL) != 0) {
log_err("Failed to spawn new process");
return -1;
}
@@ -434,8 +435,7 @@ static int __ipcp_flow_alloc(pid_t pid,
size_t len,
qosspec_t qs,
bool join,
- const void * data,
- size_t dlen)
+ const buffer_t data)
{
ipcp_msg_t msg = IPCP_MSG__INIT;
ipcp_msg_t * recv_msg = NULL;
@@ -454,8 +454,8 @@ static int __ipcp_flow_alloc(pid_t pid,
msg.hash.data = (uint8_t *) dst;
msg.qosspec = qos_spec_s_to_msg(&qs);;
msg.has_pk = true;
- msg.pk.data = (uint8_t *) data;
- msg.pk.len = (uint32_t) dlen;
+ msg.pk.data = data.data;
+ msg.pk.len = data.len;
recv_msg = send_recv_ipcp_msg(pid, &msg);
free(msg.qosspec);
@@ -479,11 +479,10 @@ int ipcp_flow_alloc(pid_t pid,
const uint8_t * dst,
size_t len,
qosspec_t qs,
- const void * data,
- size_t dlen)
+ const buffer_t data)
{
- return __ipcp_flow_alloc(pid, flow_id, n_pid, dst, len, qs, false,
- data, dlen);
+ return __ipcp_flow_alloc(pid, flow_id, n_pid, dst,
+ len, qs, false, data);
}
int ipcp_flow_join(pid_t pid,
@@ -493,16 +492,16 @@ int ipcp_flow_join(pid_t pid,
size_t len,
qosspec_t qs)
{
- return __ipcp_flow_alloc(pid, flow_id, n_pid, dst, len, qs, true,
- NULL, 0);
+ buffer_t data = {NULL, 0};
+ return __ipcp_flow_alloc(pid, flow_id, n_pid, dst,
+ len, qs, true, data);
}
-int ipcp_flow_alloc_resp(pid_t pid,
- int flow_id,
- pid_t n_pid,
- int response,
- const void * data,
- size_t len)
+int ipcp_flow_alloc_resp(pid_t pid,
+ int flow_id,
+ pid_t n_pid,
+ int response,
+ const buffer_t data)
{
ipcp_msg_t msg = IPCP_MSG__INIT;
ipcp_msg_t * recv_msg = NULL;
@@ -516,8 +515,8 @@ int ipcp_flow_alloc_resp(pid_t pid,
msg.has_response = true;
msg.response = response;
msg.has_pk = true;
- msg.pk.data = (uint8_t *) data;
- msg.pk.len = (uint32_t) len;
+ msg.pk.data = data.data;
+ msg.pk.len = data.len;
recv_msg = send_recv_ipcp_msg(pid, &msg);
if (recv_msg == NULL)
diff --git a/src/irmd/ipcp.h b/src/irmd/ipcp.h
index ad96ad1c..bedbfe01 100644
--- a/src/irmd/ipcp.h
+++ b/src/irmd/ipcp.h
@@ -69,8 +69,7 @@ int ipcp_flow_alloc(pid_t pid,
const uint8_t * dst,
size_t len,
qosspec_t qs,
- const void * data,
- size_t dlen);
+ const buffer_t data);
int ipcp_flow_join(pid_t pid,
int flow_id,
@@ -79,12 +78,11 @@ int ipcp_flow_join(pid_t pid,
size_t len,
qosspec_t qs);
-int ipcp_flow_alloc_resp(pid_t pid,
- int flow_id,
- pid_t n_pid,
- int response,
- const void * data,
- size_t len);
+int ipcp_flow_alloc_resp(pid_t pid,
+ int flow_id,
+ pid_t n_pid,
+ int response,
+ const buffer_t data);
int ipcp_flow_dealloc(pid_t pid,
int flow_id,
diff --git a/src/irmd/irm_flow.c b/src/irmd/irm_flow.c
index 44d3fb7e..6d22cbc8 100644
--- a/src/irmd/irm_flow.c
+++ b/src/irmd/irm_flow.c
@@ -33,9 +33,10 @@
#include "irm_flow.h"
-#include <stdlib.h>
-#include <stdbool.h>
#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
struct irm_flow * irm_flow_create(pid_t n_pid,
pid_t n_1_pid,
@@ -43,10 +44,14 @@ struct irm_flow * irm_flow_create(pid_t n_pid,
qosspec_t qs)
{
pthread_condattr_t cattr;
- struct irm_flow * f = malloc(sizeof(*f));
+ struct irm_flow * f;
+
+ f = malloc(sizeof(*f));
if (f == NULL)
goto fail_malloc;
+ memset(f, 0, sizeof(*f));
+
if (pthread_condattr_init(&cattr))
goto fail_cattr;
@@ -59,14 +64,6 @@ struct irm_flow * irm_flow_create(pid_t n_pid,
if (pthread_mutex_init(&f->state_lock, NULL))
goto fail_mutex;
- f->n_pid = n_pid;
- f->n_1_pid = n_1_pid;
- f->flow_id = flow_id;
- f->mpl = 0;
- f->qs = qs;
- f->data = NULL;
- f->len = 0;
-
f->n_rb = shm_rbuff_create(n_pid, flow_id);
if (f->n_rb == NULL) {
log_err("Could not create ringbuffer for process %d.", n_pid);
@@ -79,11 +76,16 @@ struct irm_flow * irm_flow_create(pid_t n_pid,
goto fail_n_1_rbuff;
}
- f->state = FLOW_ALLOC_PENDING;
-
if (clock_gettime(CLOCK_MONOTONIC, &f->t0) < 0)
log_warn("Failed to set timestamp.");
+ f->n_pid = n_pid;
+ f->n_1_pid = n_1_pid;
+ f->flow_id = flow_id;
+ f->qs = qs;
+
+ f->state = FLOW_ALLOC_PENDING;
+
pthread_condattr_destroy(&cattr);
return f;
@@ -123,7 +125,7 @@ void irm_flow_destroy(struct irm_flow * f)
pthread_mutex_lock(&f->state_lock);
- assert(f->len == 0);
+ assert(f->data.len == 0);
if (f->state == FLOW_DESTROY) {
pthread_mutex_unlock(&f->state_lock);
diff --git a/src/irmd/irm_flow.h b/src/irmd/irm_flow.h
index af613d36..a1794f5f 100644
--- a/src/irmd/irm_flow.h
+++ b/src/irmd/irm_flow.h
@@ -26,6 +26,7 @@
#include <ouroboros/list.h>
#include <ouroboros/qos.h>
#include <ouroboros/shm_rbuff.h>
+#include <ouroboros/utils.h>
#include <sys/types.h>
#include <pthread.h>
@@ -50,8 +51,7 @@ struct irm_flow {
qosspec_t qs;
time_t mpl;
- void * data;
- size_t len;
+ buffer_t data;
struct shm_rbuff * n_rb;
struct shm_rbuff * n_1_rb;
diff --git a/src/irmd/main.c b/src/irmd/main.c
index e8a73aa0..75e6c2c7 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -173,9 +173,9 @@ static void clear_irm_flow(struct irm_flow * f) {
assert(f);
- if (f->len != 0) {
- free(f->data);
- f->len = 0;
+ if (f->data.len != 0) {
+ free(f->data.data);
+ f->data.len = 0;
}
while ((idx = shm_rbuff_read(f->n_rb)) >= 0)
@@ -1277,18 +1277,17 @@ static int proc_announce(pid_t pid,
static int flow_accept(pid_t pid,
struct timespec * dl,
struct irm_flow * f_out,
- const void * data,
- size_t len)
+ buffer_t * data)
{
- struct irm_flow * f = NULL;
- struct proc_entry * pe = NULL;
- struct reg_entry * re = NULL;
- struct list_head * p = NULL;
-
- pid_t pid_n;
- pid_t pid_n_1;
- int flow_id;
- int ret;
+ struct irm_flow * f;
+ struct proc_entry * pe;
+ struct reg_entry * re;
+ struct list_head * p;
+ pid_t pid_n;
+ pid_t pid_n_1;
+ int flow_id;
+ int ret;
+ buffer_t tmp = {NULL, 0};
pthread_rwlock_wrlock(&irmd.reg_lock);
@@ -1345,7 +1344,7 @@ static int flow_accept(pid_t pid,
list_del(&f->next);
bmp_release(irmd.flow_ids, f->flow_id);
pthread_rwlock_unlock(&irmd.flows_lock);
- ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, -1, NULL, 0);
+ ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, -1, tmp);
clear_irm_flow(f);
irm_flow_set_state(f, FLOW_NULL);
irm_flow_destroy(f);
@@ -1365,7 +1364,7 @@ static int flow_accept(pid_t pid,
list_del(&f->next);
bmp_release(irmd.flow_ids, f->flow_id);
pthread_rwlock_unlock(&irmd.flows_lock);
- ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, -1, NULL, 0);
+ ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, -1, tmp);
clear_irm_flow(f);
irm_flow_set_state(f, FLOW_NULL);
irm_flow_destroy(f);
@@ -1384,20 +1383,16 @@ static int flow_accept(pid_t pid,
f_out->n_1_pid = f->n_1_pid;
f_out->qs = f->qs;
f_out->mpl = f->mpl;
- f_out->data = f->data; /* pass owner */
- f_out->len = f->len;
- f->data = NULL;
- f->len = 0;
+ if (f->qs.cypher_s != 0) /* crypto requested, send pubkey */
+ tmp = *data;
- pthread_rwlock_unlock(&irmd.flows_lock);
+ *data = f->data; /* pass owner */
+ clrbuf (f->data);
- if (f->qs.cypher_s == 0) { /* no crypto requested, don't send pubkey */
- data = NULL;
- len = 0;
- }
+ pthread_rwlock_unlock(&irmd.flows_lock);
- if (ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, 0, data, len)) {
+ if (ipcp_flow_alloc_resp(pid_n_1, flow_id, pid_n, 0, tmp)) {
pthread_rwlock_wrlock(&irmd.flows_lock);
list_del(&f->next);
pthread_rwlock_unlock(&irmd.flows_lock);
@@ -1494,11 +1489,10 @@ static int flow_join(pid_t pid,
f_out->flow_id = f->flow_id;
f_out->n_pid = f->n_pid;
f_out->n_1_pid = f->n_1_pid;
- f_out->data = f->data; /* pass owner */
- f_out->len = f->len;
f_out->mpl = f->mpl;
- f->data = NULL;
- f->len = 0;
+
+ assert(f->data.data == NULL);
+ assert(f->data.len == 0);
pthread_rwlock_unlock(&irmd.flows_lock);
@@ -1512,8 +1506,7 @@ static int flow_alloc(pid_t pid,
qosspec_t qs,
struct timespec * dl,
struct irm_flow * f_out,
- const void * data,
- size_t len)
+ buffer_t * data)
{
struct irm_flow * f;
struct ipcp_entry * ipcp;
@@ -1560,7 +1553,7 @@ static int flow_alloc(pid_t pid,
str_hash(ipcp->dir_hash_algo, hash, dst);
if (ipcp_flow_alloc(ipcp->pid, flow_id, pid, hash,
- IPCP_HASH_LEN(ipcp), qs, data, len)) {
+ IPCP_HASH_LEN(ipcp), qs, *data)) {
irm_flow_set_state(f, FLOW_NULL);
/* sanitizer cleans this */
log_info("Flow_allocation failed.");
@@ -1588,11 +1581,9 @@ static int flow_alloc(pid_t pid,
f_out->flow_id = f->flow_id;
f_out->n_pid = f->n_pid;
f_out->n_1_pid = f->n_1_pid;
- f_out->data = f->data; /* pass owner */
- f_out->len = f->len;
f_out->mpl = f->mpl;
- f->data = NULL;
- f->len = 0;
+ *data = f->data; /* pass owner */
+ clrbuf(f->data);
pthread_rwlock_unlock(&irmd.flows_lock);
@@ -1687,13 +1678,12 @@ static int flow_req_arr(pid_t pid,
const uint8_t * hash,
time_t mpl,
qosspec_t qs,
- const void * data,
- size_t len)
+ buffer_t data)
{
- struct reg_entry * re = NULL;
- struct prog_entry * a = NULL;
- struct proc_entry * pe = NULL;
- struct irm_flow * f = NULL;
+ struct reg_entry * re;
+ struct prog_entry * a;
+ struct proc_entry * pe;
+ struct irm_flow * f;
struct pid_el * c_pid;
struct ipcp_entry * ipcp;
@@ -1801,22 +1791,8 @@ static int flow_req_arr(pid_t pid,
}
f->state = FLOW_ALLOC_REQ_PENDING;
- f->mpl = mpl;
-
- if (len != 0) {
- assert(data);
- f->data = malloc(len);
- if (f->data == NULL) {
- bmp_release(irmd.flow_ids, flow_id);
- pthread_rwlock_unlock(&irmd.flows_lock);
- log_err("Could not piggyback data.");
- return -1;
- }
-
- f->len = len;
- if (len > 0)
- memcpy(f->data, data, len);
- }
+ f->mpl = mpl;
+ f->data = data;
list_add(&f->next, &irmd.irm_flows);
@@ -1834,8 +1810,7 @@ static int flow_req_arr(pid_t pid,
list_del(&f->next);
pthread_rwlock_unlock(&irmd.flows_lock);
log_err("Could not get process table entry for %d.", h_pid);
- free(f->data);
- f->len = 0;
+ freebuf(f->data);
irm_flow_destroy(f);
return -1;
}
@@ -1852,11 +1827,10 @@ static int flow_req_arr(pid_t pid,
return 0;
}
-static int flow_alloc_reply(int flow_id,
- int response,
- time_t mpl,
- const void * data,
- size_t len)
+static int flow_alloc_reply(int flow_id,
+ int response,
+ time_t mpl,
+ buffer_t data)
{
struct irm_flow * f;
@@ -1874,16 +1848,7 @@ static int flow_alloc_reply(int flow_id,
else
irm_flow_set_state(f, FLOW_NULL);
- f->data = malloc(len);
- if (f->data == NULL) {
- pthread_rwlock_unlock(&irmd.flows_lock);
- return -1;
- }
-
- if (len > 0)
- memcpy(f->data, data, len);
-
- f->len = len;
+ f->data = data;
pthread_rwlock_unlock(&irmd.flows_lock);
@@ -2073,14 +2038,15 @@ static void * mainloop(void * o)
while (true) {
irm_msg_t * ret_msg;
- struct irm_flow e;
+ struct irm_flow f;
struct ipcp_config conf;
struct timespec * dl = NULL;
struct timespec ts = {0, 0};
struct cmd * cmd;
int result;
+ buffer_t data;
- memset(&e, 0, sizeof(e));
+ memset(&f, 0, sizeof(f));
ret_msg = malloc(sizeof(*ret_msg));
if (ret_msg == NULL)
@@ -2198,54 +2164,58 @@ static void * mainloop(void * o)
result = name_unreg(msg->name, msg->pid);
break;
case IRM_MSG_CODE__IRM_FLOW_ACCEPT:
- assert(msg->pk.len > 0 ? msg->pk.data != NULL
- : msg->pk.data == NULL);
- result = flow_accept(msg->pid, dl, &e,
- msg->pk.data, msg->pk.len);
+ data.len = msg->pk.len;
+ data.data = msg->pk.data;
+ assert(data.len > 0 ? data.data != NULL
+ : data.data == NULL);
+ result = flow_accept(msg->pid, dl, &f, &data);
if (result == 0) {
+ qosspec_msg_t * qs_msg;
+ qs_msg = qos_spec_s_to_msg(&f.qs);
ret_msg->has_flow_id = true;
- ret_msg->flow_id = e.flow_id;
+ ret_msg->flow_id = f.flow_id;
ret_msg->has_pid = true;
- ret_msg->pid = e.n_1_pid;
- ret_msg->qosspec = qos_spec_s_to_msg(&e.qs);
- ret_msg->has_pk = true;
- ret_msg->pk.data = e.data;
- ret_msg->pk.len = e.len;
+ ret_msg->pid = f.n_1_pid;
+ ret_msg->qosspec = qs_msg;
ret_msg->has_mpl = true;
- ret_msg->mpl = e.mpl;
+ ret_msg->mpl = f.mpl;
+ ret_msg->has_pk = true;
+ ret_msg->pk.data = data.data;
+ ret_msg->pk.len = data.len;
}
break;
case IRM_MSG_CODE__IRM_FLOW_ALLOC:
- assert(msg->pk.len > 0 ? msg->pk.data != NULL
- : msg->pk.data == NULL);
+ data.len = msg->pk.len;
+ data.data = msg->pk.data;
+ assert(data.len > 0 ? data.data != NULL
+ : data.data == NULL);
result = flow_alloc(msg->pid, msg->dst,
qos_spec_msg_to_s(msg->qosspec),
- dl, &e, msg->pk.data,
- msg->pk.len);
+ dl, &f, &data);
if (result == 0) {
ret_msg->has_flow_id = true;
- ret_msg->flow_id = e.flow_id;
+ ret_msg->flow_id = f.flow_id;
ret_msg->has_pid = true;
- ret_msg->pid = e.n_1_pid;
- ret_msg->has_pk = true;
- ret_msg->pk.data = e.data;
- ret_msg->pk.len = e.len;
+ ret_msg->pid = f.n_1_pid;
ret_msg->has_mpl = true;
- ret_msg->mpl = e.mpl;
+ ret_msg->mpl = f.mpl;
+ ret_msg->has_pk = true;
+ ret_msg->pk.data = data.data;
+ ret_msg->pk.len = data.len;
}
break;
case IRM_MSG_CODE__IRM_FLOW_JOIN:
assert(msg->pk.len == 0 && msg->pk.data == NULL);
result = flow_join(msg->pid, msg->dst,
qos_spec_msg_to_s(msg->qosspec),
- dl, &e);
+ dl, &f);
if (result == 0) {
ret_msg->has_flow_id = true;
- ret_msg->flow_id = e.flow_id;
+ ret_msg->flow_id = f.flow_id;
ret_msg->has_pid = true;
- ret_msg->pid = e.n_1_pid;
+ ret_msg->pid = f.n_1_pid;
ret_msg->has_mpl = true;
- ret_msg->mpl = e.mpl;
+ ret_msg->mpl = f.mpl;
}
break;
case IRM_MSG_CODE__IRM_FLOW_DEALLOC:
@@ -2254,30 +2224,38 @@ static void * mainloop(void * o)
msg->timeo_sec);
break;
case IRM_MSG_CODE__IPCP_FLOW_REQ_ARR:
- assert(msg->pk.len > 0 ? msg->pk.data != NULL
- : msg->pk.data == NULL);
+ data.len = msg->pk.len;
+ data.data = msg->pk.data;
+ msg->has_pk = false; /* pass data */
+ msg->pk.data = NULL;
+ msg->pk.len = 0;
+ assert(data.len > 0 ? data.data != NULL
+ : data.data == NULL);
result = flow_req_arr(msg->pid,
- &e,
+ &f,
msg->hash.data,
msg->mpl,
qos_spec_msg_to_s(msg->qosspec),
- msg->pk.data,
- msg->pk.len);
+ data);
if (result == 0) {
ret_msg->has_flow_id = true;
- ret_msg->flow_id = e.flow_id;
+ ret_msg->flow_id = f.flow_id;
ret_msg->has_pid = true;
- ret_msg->pid = e.n_pid;
+ ret_msg->pid = f.n_pid;
}
break;
case IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY:
- assert(msg->pk.len > 0 ? msg->pk.data != NULL
- : msg->pk.data == NULL);
+ data.len = msg->pk.len;
+ data.data = msg->pk.data;
+ msg->has_pk = false; /* pass data */
+ msg->pk.data = NULL;
+ msg->pk.len = 0;
+ assert(data.len > 0 ? data.data != NULL
+ : data.data == NULL);
result = flow_alloc_reply(msg->flow_id,
msg->response,
msg->mpl,
- msg->pk.data,
- msg->pk.len);
+ data);
break;
default:
log_err("Don't know that message code.");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 14:35:03 +0000