build: Revise the build system

This revises the build system to have configuration per system
component. System settings can now be set using cmake.

The standard compliance defines were removed from configuration header
and are set in the sources where needed. Also some small code
refactors, such as moving the data for shims out of the ipcp structure
to the respective shims were performed.

1 files changed, 27 insertions, 13 deletions

diff --git a/src/ipcpd/shim-udp/main.c b/src/ipcpd/shim-udp/main.c
index 195e3bc0..55fe19a6 100644
--- a/src/ipcpd/shim-udp/main.c
+++ b/src/ipcpd/shim-udp/main.c
@@ -20,9 +20,12 @@
  * Foundation, Inc., http://www.fsf.org/about/contact/.
  */
 
+#define _POSIX_C_SOURCE 200112L
+
+#include "config.h"
+
 #define OUROBOROS_PREFIX "ipcpd/shim-udp"
 
-#include <ouroboros/config.h>
 #include <ouroboros/hash.h>
 #include <ouroboros/list.h>
 #include <ouroboros/utils.h>
@@ -32,9 +35,9 @@
 #include <ouroboros/errno.h>
 #include <ouroboros/logs.h>
 
-#include "shim_udp_messages.pb-c.h"
 #include "ipcp.h"
-#include "shim_udp_config.h"
+#include "shim-data.h"
+#include "shim_udp_messages.pb-c.h"
 
 #include <string.h>
 #include <sys/socket.h>
@@ -68,6 +71,8 @@ struct uf {
 };
 
 struct {
+        struct shim_data * shim_data;
+
         uint32_t           ip_addr;
         uint32_t           dns_addr;
         /* listen server */
@@ -79,7 +84,7 @@ struct {
         fd_set             flow_fd_s;
         /* bidir mappings of (n - 1) file descriptor to (n) flow descriptor */
         int                uf_to_fd[FD_SETSIZE];
-        struct uf          fd_to_uf[IRMD_MAX_FLOWS];
+        struct uf          fd_to_uf[SYS_MAX_FLOWS];
         pthread_rwlock_t   flows_lock;
 
         pthread_t          sduloop;
@@ -98,7 +103,7 @@ static int udp_data_init(void)
         for (i = 0; i < FD_SETSIZE; ++i)
                 udp_data.uf_to_fd[i] = -1;
 
-        for (i = 0; i < IRMD_MAX_FLOWS; ++i) {
+        for (i = 0; i < SYS_MAX_FLOWS; ++i) {
                 udp_data.fd_to_uf[i].skfd = -1;
                 udp_data.fd_to_uf[i].udp = -1;
         }
@@ -115,6 +120,13 @@ static int udp_data_init(void)
                 return -ENOMEM;
         }
 
+        udp_data.shim_data = shim_data_create();
+        if (udp_data.shim_data == NULL) {
+                fqueue_destroy(udp_data.fq);
+                flow_set_destroy(udp_data.np1_flows);
+                return -ENOMEM;
+        }
+
         pthread_rwlock_init(&udp_data.flows_lock, NULL);
         pthread_cond_init(&udp_data.fd_set_cond, NULL);
         pthread_mutex_init(&udp_data.fd_set_lock, NULL);
@@ -127,6 +139,8 @@ static void udp_data_fini(void)
         flow_set_destroy(udp_data.np1_flows);
         fqueue_destroy(udp_data.fq);
 
+        shim_data_destroy(udp_data.shim_data);
+
         pthread_rwlock_destroy(&udp_data.flows_lock);
         pthread_mutex_destroy(&udp_data.fd_set_lock);
         pthread_cond_destroy(&udp_data.fd_set_cond);
@@ -322,7 +336,7 @@ static int udp_port_to_fd(int udp_port)
 {
         int i;
 
-        for (i = 0; i < IRMD_MAX_FLOWS; ++i)
+        for (i = 0; i < SYS_MAX_FLOWS; ++i)
                 if (udp_data.fd_to_uf[i].udp == udp_port)
                         return i;
 
@@ -765,7 +779,7 @@ static int ipcp_udp_reg(const uint8_t * hash)
                 return -ENOMEM;
         }
 
-        if (shim_data_reg_add_entry(ipcpi.shim_data, hash_dup)) {
+        if (shim_data_reg_add_entry(udp_data.shim_data, hash_dup)) {
                 log_err("Failed to add " HASH_FMT " to local registry.",
                         HASH_VAL(hash));
                 free(hash_dup);
@@ -794,7 +808,7 @@ static int ipcp_udp_reg(const uint8_t * hash)
                         dnsstr, hashstr, DNS_TTL, ipstr);
 
                 if (ddns_send(cmd)) {
-                        shim_data_reg_del_entry(ipcpi.shim_data, hash_dup);
+                        shim_data_reg_del_entry(udp_data.shim_data, hash_dup);
                         return -1;
                 }
         }
@@ -835,7 +849,7 @@ static int ipcp_udp_unreg(const uint8_t * hash)
         }
 #endif
 
-        shim_data_reg_del_entry(ipcpi.shim_data, hash);
+        shim_data_reg_del_entry(udp_data.shim_data, hash);
 
         log_dbg("Unregistered " HASH_FMT ".", HASH_VAL(hash));
 
@@ -855,7 +869,7 @@ static int ipcp_udp_query(const uint8_t * hash)
 
         ipcp_hash_str(hashstr, hash);
 
-        if (shim_data_dir_has(ipcpi.shim_data, hash))
+        if (shim_data_dir_has(udp_data.shim_data, hash))
                 return 0;
 
 #ifdef CONFIG_OUROBOROS_ENABLE_DNS
@@ -880,7 +894,7 @@ static int ipcp_udp_query(const uint8_t * hash)
         }
 #endif
 
-        if (shim_data_dir_add_entry(ipcpi.shim_data, hash, ip_addr)) {
+        if (shim_data_dir_add_entry(udp_data.shim_data, hash, ip_addr)) {
                 log_err("Failed to add directory entry.");
                 return -1;
         }
@@ -926,12 +940,12 @@ static int ipcp_udp_flow_alloc(int             fd,
                 return -1;
         }
 
-        if (!shim_data_dir_has(ipcpi.shim_data, dst)) {
+        if (!shim_data_dir_has(udp_data.shim_data, dst)) {
                 log_dbg("Could not resolve destination.");
                 close(skfd);
                 return -1;
         }
-        ip_addr = (uint32_t) shim_data_dir_get_addr(ipcpi.shim_data, dst);
+        ip_addr = (uint32_t) shim_data_dir_get_addr(udp_data.shim_data, dst);
 
         /* connect to server (store the remote IP address in the fd) */
         memset((char *) &r_saddr, 0, sizeof(r_saddr));