diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/ipcpd/ipcp-data.c | 112 | ||||
-rw-r--r-- | src/ipcpd/ipcp-data.h | 15 | ||||
-rw-r--r-- | src/ipcpd/ipcp-ops.h | 5 | ||||
-rw-r--r-- | src/ipcpd/ipcp.c | 29 | ||||
-rw-r--r-- | src/ipcpd/ipcp.h | 3 | ||||
-rw-r--r-- | src/ipcpd/shim-udp/CMakeLists.txt | 15 | ||||
-rw-r--r-- | src/ipcpd/shim-udp/main.c | 396 | ||||
-rw-r--r-- | src/ipcpd/shim-udp/tests/shim_udp_test.c | 22 | ||||
-rw-r--r-- | src/irmd/main.c | 410 | ||||
-rw-r--r-- | src/lib/dev.c | 78 | ||||
-rw-r--r-- | src/lib/ipcp.c | 88 | ||||
-rw-r--r-- | src/lib/ipcpd_messages.proto | 31 | ||||
-rw-r--r-- | src/lib/irm.c | 10 | ||||
-rw-r--r-- | src/lib/irmd_messages.proto | 72 | ||||
-rw-r--r-- | src/tools/echo/echo_server.c | 5 | ||||
-rw-r--r-- | src/tools/irm/irm_create_ipcp.c | 11 |
16 files changed, 922 insertions, 380 deletions
diff --git a/src/ipcpd/ipcp-data.c b/src/ipcpd/ipcp-data.c index 1828fda9..106226de 100644 --- a/src/ipcpd/ipcp-data.c +++ b/src/ipcpd/ipcp-data.c @@ -35,8 +35,7 @@ struct reg_entry { struct list_head list; - char * ap_name; - uint32_t reg_ap_id; + char * name; }; struct dir_entry { @@ -45,16 +44,14 @@ struct dir_entry { uint64_t addr; }; -static struct reg_entry * reg_entry_create(const char * ap_name, - uint32_t reg_ap_id) +static struct reg_entry * reg_entry_create(const char * name) { struct reg_entry * entry = malloc(sizeof *entry); if (entry == NULL) return NULL; - entry->reg_ap_id = reg_ap_id; - entry->ap_name = strdup(ap_name); - if (entry->ap_name == NULL) + entry->name = strdup(name); + if (entry->name == NULL) return NULL; return entry; @@ -65,7 +62,7 @@ static void reg_entry_destroy(struct reg_entry * entry) if (entry == NULL) return; - free(entry->ap_name); + free(entry->name); free(entry); } @@ -107,18 +104,28 @@ struct ipcp_data * ipcp_data_create() } struct ipcp_data * ipcp_data_init(struct ipcp_data * dst, - instance_name_t * iname, - enum ipcp_type ipcp_type) + const char * ipcp_name, + enum ipcp_type ipcp_type) { if (dst == NULL) return NULL; - dst->iname = instance_name_dup(iname); + dst->iname = instance_name_create(); + if (dst->iname == NULL) + return NULL; + + if(instance_name_init_from(dst->iname, ipcp_name, getpid()) == NULL) { + instance_name_destroy(dst->iname); + return NULL; + } + dst->type = ipcp_type; dst->dum = shm_du_map_open(); - if (dst->dum == NULL) + if (dst->dum == NULL) { + instance_name_destroy(dst->iname); return NULL; + } /* init the lists */ INIT_LIST_HEAD(&dst->registry); @@ -194,25 +201,12 @@ void ipcp_data_destroy(struct ipcp_data * data) static struct reg_entry * find_reg_entry_by_name(struct ipcp_data * data, - const char * ap_name) -{ - struct list_head * h; - list_for_each(h, &data->registry) { - struct reg_entry * e = list_entry(h, struct reg_entry, list); - if (!strcmp(e->ap_name, ap_name)) - return e; - } - - return NULL; -} - -static struct reg_entry * find_reg_entry_by_id(struct ipcp_data * data, - uint32_t reg_ap_id) + const char * name) { struct list_head * h; list_for_each(h, &data->registry) { struct reg_entry * e = list_entry(h, struct reg_entry, list); - if (e->reg_ap_id == reg_ap_id) + if (!strcmp(e->name, name)) return e; } @@ -253,7 +247,7 @@ bool ipcp_data_is_in_directory(struct ipcp_data * data, } int ipcp_data_del_reg_entry(struct ipcp_data * data, - uint32_t reg_ap_id) + const char * name) { struct reg_entry * e; if (data == NULL) @@ -261,7 +255,7 @@ int ipcp_data_del_reg_entry(struct ipcp_data * data, pthread_mutex_lock(&data->reg_lock); - e = find_reg_entry_by_id(data, reg_ap_id); + e = find_reg_entry_by_name(data, name); if (e == NULL) { pthread_mutex_unlock(&data->reg_lock); return 0; /* nothing to do */ @@ -302,23 +296,21 @@ int ipcp_data_del_dir_entry(struct ipcp_data * data, } int ipcp_data_add_reg_entry(struct ipcp_data * data, - char * ap_name, - uint32_t reg_ap_id) + const char * name) { struct reg_entry * entry; - if (data == NULL || ap_name == NULL) + if (data == NULL || name == NULL) return -1; pthread_mutex_lock(&data->reg_lock); - if (find_reg_entry_by_name(data, ap_name) || - find_reg_entry_by_id(data, reg_ap_id)) { + if (find_reg_entry_by_name(data, name)) { pthread_mutex_unlock(&data->reg_lock); return -2; } - entry = reg_entry_create(ap_name, reg_ap_id); + entry = reg_entry_create(name); if (entry == NULL) { pthread_mutex_unlock(&data->reg_lock); return -1; @@ -332,7 +324,7 @@ int ipcp_data_add_reg_entry(struct ipcp_data * data, } int ipcp_data_add_dir_entry(struct ipcp_data * data, - char * ap_name, + const char * ap_name, uint64_t addr) { struct dir_entry * entry; @@ -366,54 +358,6 @@ bool ipcp_data_is_in_registry(struct ipcp_data * data, return find_reg_entry_by_name(data, ap_name) != NULL; } -uint32_t ipcp_data_get_reg_ap_id(struct ipcp_data * data, - const char * ap_name) -{ - struct reg_entry * entry; - uint32_t id; - - pthread_mutex_lock(&data->reg_lock); - - entry = find_reg_entry_by_name(data, ap_name); - - if (entry == NULL) { - pthread_mutex_unlock(&data->reg_lock); - return 0; /* undefined behaviour */ - } - - id = entry->reg_ap_id; - - pthread_mutex_unlock(&data->reg_lock); - - return id; -} - -const char * ipcp_data_get_reg_ap_name(struct ipcp_data * data, - uint32_t reg_ap_id) -{ - struct reg_entry * entry; - char * name; - - pthread_mutex_lock(&data->reg_lock); - - entry = find_reg_entry_by_id(data, reg_ap_id); - - if (entry == NULL) { - pthread_mutex_unlock(&data->reg_lock); - return NULL; - } - - name = strdup(entry->ap_name); - if (name == NULL) { - pthread_mutex_unlock(&data->reg_lock); - return NULL; - } - - pthread_mutex_unlock(&data->reg_lock); - - return name; -} - uint64_t ipcp_data_get_addr(struct ipcp_data * data, const char * ap_name) { diff --git a/src/ipcpd/ipcp-data.h b/src/ipcpd/ipcp-data.h index 3f036ef5..1dea8c3c 100644 --- a/src/ipcpd/ipcp-data.h +++ b/src/ipcpd/ipcp-data.h @@ -53,27 +53,22 @@ struct ipcp_data { struct ipcp_data * ipcp_data_create(); struct ipcp_data * ipcp_data_init(struct ipcp_data * dst, - instance_name_t * iname, + const char * ipcp_name, enum ipcp_type ipcp_type); void ipcp_data_destroy(struct ipcp_data * data); int ipcp_data_add_reg_entry(struct ipcp_data * data, - char * ap_name, - uint32_t reg_ap_id); + const char * name); int ipcp_data_del_reg_entry(struct ipcp_data * data, - uint32_t reg_ap_id); + const char * name); int ipcp_data_add_dir_entry(struct ipcp_data * data, - char * ap_name, + const char * ap_name, uint64_t addr); int ipcp_data_del_dir_entry(struct ipcp_data * data, const char * ap_name, uint64_t addr); bool ipcp_data_is_in_registry(struct ipcp_data * data, - const char * ap_name); -uint32_t ipcp_data_get_reg_ap_id(struct ipcp_data * data, - const char * ap_name); -const char * ipcp_data_get_reg_ap_name(struct ipcp_data * data, - uint32_t reg_ap_id); + const char * name); bool ipcp_data_is_in_directory(struct ipcp_data * data, const char * ap_name); uint64_t ipcp_data_get_addr(struct ipcp_data * data, diff --git a/src/ipcpd/ipcp-ops.h b/src/ipcpd/ipcp-ops.h index 5c917229..2ccb2e59 100644 --- a/src/ipcpd/ipcp-ops.h +++ b/src/ipcpd/ipcp-ops.h @@ -36,9 +36,8 @@ struct ipcp_ops { size_t len); int (* ipcp_unreg)(char ** dif_names, size_t len); - int (* ipcp_ap_reg)(char * ap_name, - uint32_t reg_ap_id); - int (* ipcp_ap_unreg)(uint32_t reg_ap_id); + int (* ipcp_name_reg)(char * name); + int (* ipcp_name_unreg)(char * name); int (* ipcp_flow_alloc)(uint32_t port_id, char * dst_ap_name, char * src_ap_name, diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c index 0b652ff6..23c432f1 100644 --- a/src/ipcpd/ipcp.c +++ b/src/ipcpd/ipcp.c @@ -31,7 +31,7 @@ int ipcp_arg_check(int argc, char * argv[]) { - if (argc != 4) + if (argc != 3) return -1; /* argument 1: pid of irmd */ @@ -41,7 +41,6 @@ int ipcp_arg_check(int argc, char * argv[]) /* name conformity responsibility of NMS */ /* argument 2: ap name */ - /* argument 3: instance id */ return 0; } @@ -151,35 +150,35 @@ int ipcp_main_loop(struct ipcp * _ipcp) ret_msg.result = _ipcp->ops->ipcp_unreg( msg->dif_names, msg->len); break; - case IPCP_MSG_CODE__IPCP_AP_REG: - if (_ipcp->ops->ipcp_ap_reg == NULL) { + case IPCP_MSG_CODE__IPCP_NAME_REG: + if (_ipcp->ops->ipcp_name_reg == NULL) { LOG_ERR("Ap_reg unsupported."); break; } ret_msg.has_result = true; - ret_msg.result = _ipcp->ops->ipcp_ap_reg( - msg->ap_name, msg->reg_ap_id); + ret_msg.result = _ipcp->ops->ipcp_name_reg( + msg->name); break; - case IPCP_MSG_CODE__IPCP_AP_UNREG: - if (_ipcp->ops->ipcp_ap_unreg == NULL) { + case IPCP_MSG_CODE__IPCP_NAME_UNREG: + if (_ipcp->ops->ipcp_name_unreg == NULL) { LOG_ERR("Ap_unreg unsupported."); break; } ret_msg.has_result = true; - ret_msg.result = _ipcp->ops->ipcp_ap_unreg( - msg->reg_ap_id); + ret_msg.result = _ipcp->ops->ipcp_name_unreg( + msg->name); break; case IPCP_MSG_CODE__IPCP_FLOW_ALLOC: if (_ipcp->ops->ipcp_flow_alloc == NULL) { LOG_ERR("Flow_alloc unsupported."); break; } - ret_msg.has_result = true; - ret_msg.result = _ipcp->ops->ipcp_flow_alloc( + ret_msg.has_fd = true; + ret_msg.fd = _ipcp->ops->ipcp_flow_alloc( msg->port_id, - msg->dst_ap_name, - msg->ap_name, - msg->ae_name, + msg->dst_name, + msg->src_ap_name, + msg->src_ae_name, NULL); break; case IPCP_MSG_CODE__IPCP_FLOW_ALLOC_RESP: diff --git a/src/ipcpd/ipcp.h b/src/ipcpd/ipcp.h index 9decac8b..f640d78b 100644 --- a/src/ipcpd/ipcp.h +++ b/src/ipcpd/ipcp.h @@ -26,6 +26,9 @@ #include "ipcp-ops.h" #include "ipcp-data.h" +/* needed to run over shim DIFs */ +#define ANONYMOUS_AP "__ANONYMOUS__" + enum ipcp_state { IPCP_INIT = 0, IPCP_ENROLLING, diff --git a/src/ipcpd/shim-udp/CMakeLists.txt b/src/ipcpd/shim-udp/CMakeLists.txt index 27907880..f730fa3a 100644 --- a/src/ipcpd/shim-udp/CMakeLists.txt +++ b/src/ipcpd/shim-udp/CMakeLists.txt @@ -10,6 +10,21 @@ include_directories(${CURRENT_BINARY_PARENT_DIR}) include_directories(${CMAKE_SOURCE_DIR}/include) include_directories(${CMAKE_BINARY_DIR}/include) +# Find library needed for gethostbyname. +include(CheckFunctionExists) +CHECK_FUNCTION_EXISTS("gethostbyname" CMAKE_HAVE_GETHOSTBYNAME) +IF(NOT CMAKE_HAVE_GETHOSTBYNAME) + CHECK_LIBRARY_EXISTS("nsl" "gethostbyname" "" CMAKE_LIB_NSL_HAS_GETHOSTBYNAME) + IF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME) + SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lnsl) + ELSE (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME) + CHECK_LIBRARY_EXISTS("bsd" "gethostbyname" "" CMAKE_LIB_BSD_HAS_GETHOSTBYNAME) + IF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME) + SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lbsd) + ENDIF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME) + ENDIF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME) +ENDIF(NOT CMAKE_HAVE_GETHOSTBYNAME) + SET(IPCP_SHIM_UDP_TARGET ipcpd-shim-udp CACHE STRING "IPCP_SHIM_UDP_TARGET") set(SHIM_UDP_SOURCES diff --git a/src/ipcpd/shim-udp/main.c b/src/ipcpd/shim-udp/main.c index df731490..029df111 100644 --- a/src/ipcpd/shim-udp/main.c +++ b/src/ipcpd/shim-udp/main.c @@ -21,7 +21,6 @@ */ #include <ouroboros/config.h> - #include "ipcp.h" #include "flow.h" #include <ouroboros/shm_du_map.h> @@ -29,6 +28,7 @@ #include <ouroboros/utils.h> #include <ouroboros/ipcp.h> #include <ouroboros/dif_config.h> +#include <ouroboros/sockets.h> #define OUROBOROS_PREFIX "ipcpd/shim-udp" @@ -36,6 +36,7 @@ #include <string.h> #include <sys/socket.h> +#include <sys/select.h> #include <arpa/inet.h> #include <netdb.h> #include <netinet/in.h> @@ -44,9 +45,15 @@ #include <pthread.h> #define THIS_TYPE IPCP_SHIM_UDP +#define LISTEN_PORT htons(0x0D1F) +#define SHIM_UDP_BUF_SIZE 256 +#define SHIM_UDP_MAX_SDU_SIZE 8980 #define shim_data(type) ((struct ipcp_udp_data *) type->data) +#define local_ip (((struct ipcp_udp_data *) \ + _ipcp->data)->s_saddr.sin_addr.s_addr) + /* global for trapping signal */ int irmd_pid; @@ -58,22 +65,25 @@ struct ipcp * _ipcp; #endif struct ipcp_udp_data { - /* IPCP_DATA STRUCT MUST BE FIRST!! */ + /* keep ipcp_data first for polymorphism */ struct ipcp_data ipcp_data; uint32_t ip_addr; uint32_t dns_addr; + /* listen server */ + struct sockaddr_in s_saddr; + int s_fd; + + fd_set flow_fd_s; + flow_t * fd_to_flow_ptr[FD_SETSIZE]; + pthread_mutex_t lock; }; struct udp_flow { - /* FLOW MUST BE FIRST !!!! */ + /* keep flow first for polymorphism */ flow_t flow; - - uint16_t localport; - - struct sockaddr_in * remote; int fd; }; @@ -85,7 +95,7 @@ void ipcp_sig_handler(int sig, siginfo_t * info, void * c) case SIGHUP: LOG_DBG("Terminating by order of %d. Bye.", info->si_pid); if (info->si_pid == irmd_pid) { - shm_du_map_close(_ipcp->data->dum); + /* shm_du_map_close(_ipcp->data->dum); */ exit(0); } default: @@ -93,29 +103,14 @@ void ipcp_sig_handler(int sig, siginfo_t * info, void * c) } } -struct ipcp_udp_data * ipcp_udp_data_create(char * ap_name, - char * ap_id) +struct ipcp_udp_data * ipcp_udp_data_create(char * ap_name) { struct ipcp_udp_data * udp_data; struct ipcp_data * data; - instance_name_t * instance_name; enum ipcp_type ipcp_type; + int n; - instance_name = instance_name_create(); - if (instance_name == NULL) { - LOG_ERR("Failed to create instance name struct."); - return NULL; - } - - instance_name = instance_name_init_with( - instance_name, ap_name, (uint16_t)atoi(ap_id)); - - if (instance_name == NULL) { - LOG_ERR("Failed to create instance name struct."); - return NULL; - } - - udp_data= malloc (sizeof *udp_data); + udp_data = malloc(sizeof *udp_data); if (udp_data == NULL) { LOG_DBGF("Failed to allocate."); return NULL; @@ -123,18 +118,175 @@ struct ipcp_udp_data * ipcp_udp_data_create(char * ap_name, ipcp_type = THIS_TYPE; data = (struct ipcp_data *) udp_data; - if (ipcp_data_init(data, instance_name, ipcp_type) == NULL) { + if (ipcp_data_init(data, ap_name, ipcp_type) == NULL) { free(udp_data); return NULL; } + FD_ZERO(&udp_data->flow_fd_s); + for (n = 0; n < FD_SETSIZE; ++n) + udp_data->fd_to_flow_ptr[n] = NULL; + return udp_data; } +static void * ipcp_udp_listener() +{ + char buf[SHIM_UDP_BUF_SIZE]; + int n = 0; + + struct sockaddr_in f_saddr; + struct sockaddr_in c_saddr; + struct hostent * hostp; + struct udp_flow * flow; + int sfd = shim_data(_ipcp)->s_fd; + + irm_msg_t msg = IRM_MSG__INIT; + irm_msg_t * ret_msg ; + + while (true) { + n = sizeof c_saddr; + n = recvfrom(sfd, buf, SHIM_UDP_BUF_SIZE, 0, + (struct sockaddr *) &c_saddr, (unsigned *) &n); + if (n < 0) + continue; + + /* flow alloc request from other host */ + hostp = gethostbyaddr((const char *) &c_saddr.sin_addr.s_addr, + sizeof(c_saddr.sin_addr.s_addr), AF_INET); + if (hostp == NULL) + continue; + + /* create a new socket for the server */ + flow = malloc(sizeof *flow); + if (flow == NULL) + continue; + + flow->fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (flow->fd == -1) { + free(flow); + continue; + } + + memset((char *) &f_saddr, 0, sizeof f_saddr); + f_saddr.sin_family = AF_INET; + f_saddr.sin_addr.s_addr = local_ip; + + /* + * FIXME: we could have a port dedicated per registered AP + * Not that critical for UDP, but will be for LLC + */ + + f_saddr.sin_port = 0; + + /* + * store the remote address in the file descriptor + * this avoids having to store the sockaddr_in in + * the flow structure + */ + + if (connect(flow->fd, + (struct sockaddr *) &c_saddr, sizeof c_saddr) < 0) { + close(flow->fd); + free(flow); + continue; + } + + /* reply to IRM */ + + msg.code = IRM_MSG_CODE__IPCP_FLOW_REQ_ARR; + msg.ap_name = ANONYMOUS_AP; + msg.ae_name = ""; /* no AE */ + msg.dst_name = buf; + + ret_msg = send_recv_irm_msg(&msg); + if (ret_msg == NULL) { + LOG_ERR("Could not send message to IRM."); + close(flow->fd); + free(flow); + continue; + } + + if (!ret_msg->has_port_id) { + LOG_ERR("Didn't get port_id."); + free(ret_msg); + close(flow->fd); + free(flow); + continue; + } + + flow->flow.port_id = ret_msg->port_id; + flow->flow.oflags = FLOW_O_DEFAULT; + flow->flow.state = FLOW_PENDING; + + if(ipcp_data_add_flow(_ipcp->data, (flow_t *) flow)) { + LOG_DBGF("Could not add flow."); + free(ret_msg); + close(flow->fd); + free(flow); + continue; + } + + FD_SET(flow->fd, &shim_data(_ipcp)->flow_fd_s); + shim_data(_ipcp)->fd_to_flow_ptr[flow->fd] = &flow->flow; + } + + return 0; +} + +static void * ipcp_udp_sdu_reader() +{ + int n; + int fd; + char buf[SHIM_UDP_MAX_SDU_SIZE]; + + struct sockaddr_in r_saddr; + + while (true) { + flow_t * flow; + + if (select(FD_SETSIZE, + &shim_data(_ipcp)->flow_fd_s, + NULL, NULL, NULL) + < 0) + continue; + + for (fd = 0; fd < FD_SETSIZE; ++fd) { + if (!FD_ISSET(fd, &shim_data(_ipcp)->flow_fd_s)) + continue; + + n = sizeof r_saddr; + n = recvfrom(fd, + buf, + SHIM_UDP_MAX_SDU_SIZE, + 0, + (struct sockaddr *) &r_saddr, + (unsigned *) &n); + + flow = shim_data(_ipcp)->fd_to_flow_ptr[fd]; + if (flow->state == FLOW_PENDING) { + if (connect(fd, + (struct sockaddr *) &r_saddr, + sizeof r_saddr) + < 0) + continue; + flow->state = FLOW_ALLOCATED; + } + + /* send the sdu to the correct port_id */ + LOG_MISSING; + } + } + + return (void *) 0; +} + int ipcp_udp_bootstrap(struct dif_config * conf) { char ipstr[INET_ADDRSTRLEN]; char dnsstr[INET_ADDRSTRLEN]; + pthread_t handler; + pthread_t sdu_reader; if (conf->type != THIS_TYPE) { LOG_ERR("Config doesn't match IPCP type."); @@ -157,11 +309,33 @@ int ipcp_udp_bootstrap(struct dif_config * conf) dnsstr, INET_ADDRSTRLEN); else - strcpy(dnsstr, "not set"); + strcpy(dnsstr, "not set.\n"); shim_data(_ipcp)->ip_addr = conf->ip_addr; shim_data(_ipcp)->dns_addr = conf->dns_addr; + /* UDP listen server */ + + if ((shim_data(_ipcp)->s_fd = + socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) { + LOG_DBGF("Can't create socket."); + return -1; + } + + shim_data(_ipcp)->s_saddr.sin_family = AF_INET; + shim_data(_ipcp)->s_saddr.sin_addr.s_addr = conf->ip_addr; + shim_data(_ipcp)->s_saddr.sin_port = LISTEN_PORT; + + if (bind(shim_data(_ipcp)->s_fd, + (struct sockaddr *) &shim_data(_ipcp)->s_saddr, + sizeof shim_data(_ipcp)->s_saddr ) < 0) { + LOG_ERR("Couldn't bind to %s.", ipstr); + return -1; + } + + pthread_create(&handler, NULL, ipcp_udp_listener, NULL); + pthread_create(&sdu_reader, NULL, ipcp_udp_sdu_reader, NULL); + _ipcp->state = IPCP_ENROLLED; LOG_DBG("Bootstrapped shim IPCP over UDP %s-%d.", @@ -173,52 +347,173 @@ int ipcp_udp_bootstrap(struct dif_config * conf) return 0; } -int ipcp_udp_ap_reg(char * ap_name, uint32_t reg_ap_id) +int ipcp_udp_name_reg(char * name) { - LOG_DBG("Registering local ap %s, %u.", ap_name, reg_ap_id); - if (_ipcp->state != IPCP_ENROLLED) { LOG_DBGF("Won't register with non-enrolled IPCP."); return -1; } - if (ipcp_data_add_reg_entry(_ipcp->data, ap_name, reg_ap_id)) { - LOG_ERR("Failed to add AP to local registry."); + if (ipcp_data_add_reg_entry(_ipcp->data, name)) { + LOG_ERR("Failed to add %s to local registry.", name); return -1; } + LOG_DBG("Registered %s", name); + + /* FIXME: register application with DNS server */ LOG_MISSING; return 0; } -int ipcp_udp_ap_unreg(uint32_t reg_ap_id) +int ipcp_udp_name_unreg(char * name) { - char * name = strdup(ipcp_data_get_reg_ap_name(_ipcp->data, - reg_ap_id)); - LOG_DBG("Unregistering %s.", name); + ipcp_data_del_reg_entry(_ipcp->data, name); - ipcp_data_del_reg_entry(_ipcp->data, reg_ap_id); + LOG_DBG("Unregistered %s.", name); - /* we are using dns */ + /* FIXME: unregister application from DNS server */ LOG_MISSING; - free (name); - return 0; } int ipcp_udp_flow_alloc(uint32_t port_id, - char * dst_ap_name, + char * dst_name, char * src_ap_name, char * src_ae_name, struct qos_spec * qos) { + struct udp_flow * flow = NULL; + struct sockaddr_in l_saddr; + struct sockaddr_in r_saddr; + + struct hostent * h; + + irm_msg_t msg = IRM_MSG__INIT; + irm_msg_t * ret_msg = NULL; + + if (dst_name == NULL || src_ap_name == NULL || src_ae_name == NULL) + return -1; + + LOG_DBG("Received flow allocation request from %s to %s.", + src_ap_name, dst_name); + + if (strlen(dst_name) > 255 + || strlen(src_ap_name) > 255 + || strlen(src_ae_name) > 255) { + LOG_ERR("Name too long for this shim."); + return -1; + } + + if (qos != NULL) + LOG_DBGF("QoS requested. UDP/IP can't do that."); + + flow = malloc(sizeof *flow); + if (flow == NULL) + return -1; + + flow->fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); + if (flow->fd == -1) { + free(flow); + return -1; + } + + /* this socket is for the flow */ + memset((char *) &l_saddr, 0, sizeof l_saddr); + l_saddr.sin_family = AF_INET; + l_saddr.sin_addr.s_addr = local_ip; + l_saddr.sin_port = 0; + + if (bind(flow->fd, (struct sockaddr *) &l_saddr, sizeof l_saddr) < 0) { + char ipstr[INET_ADDRSTRLEN]; + inet_ntop(AF_INET, + &l_saddr.sin_addr.s_addr, + ipstr, + INET_ADDRSTRLEN); + close(flow->fd); + free(flow); + return -1; + } + + h = gethostbyname(dst_name); + if (h == NULL) { + close(flow->fd); + free(flow); + return -1; + } + + + memset((char *) &r_saddr, 0, sizeof r_saddr); + r_saddr.sin_family = AF_INET; + r_saddr.sin_addr.s_addr = (uint32_t) *(h->h_addr_list[0]); + r_saddr.sin_port = LISTEN_PORT; + + /* at least try to get the packet on the wire */ + while (sendto(flow->fd, dst_name, strlen(dst_name), 0, + (struct sockaddr *) &r_saddr, sizeof r_saddr) < 0) + + flow->flow.port_id = port_id; + flow->flow.oflags = FLOW_O_DEFAULT; + flow->flow.state = FLOW_PENDING; + + /* add flow to the list */ + + pthread_mutex_lock(&_ipcp->data->flow_lock); + + if(ipcp_data_add_flow(_ipcp->data, (flow_t *) flow)) { + LOG_DBGF("Could not add flow."); + pthread_mutex_unlock(&_ipcp->data->flow_lock); + close(flow->fd); + free(flow); + return -1; + } + + pthread_mutex_unlock(&_ipcp->data->flow_lock); + + /* tell IRMd that flow allocation "worked" */ + + msg.code = IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY; + msg.has_port_id = true; + msg.port_id = flow->flow.port_id; + msg.has_response = true; + msg.response = 0; + + ret_msg = send_recv_irm_msg(&msg); + if (ret_msg == NULL) { + close(flow->fd); + ipcp_data_del_flow(_ipcp->data, flow->flow.port_id); + return -1; + } + + FD_SET(flow->fd, &shim_data(_ipcp)->flow_fd_s); + shim_data(_ipcp)->fd_to_flow_ptr[flow->fd] = &flow->flow; + return 0; } + int ipcp_udp_flow_alloc_resp(uint32_t port_id, - int result) + int response) { + struct udp_flow * flow = + (struct udp_flow *) ipcp_data_find_flow(_ipcp->data, port_id); + if (flow == NULL) { + return -1; + } + + if (response) { + ipcp_data_del_flow(_ipcp->data, port_id); + return 0; + } + + /* awaken pending flow */ + + if (flow->flow.state != FLOW_PENDING) + return -1; + + flow->flow.state = FLOW_ALLOCATED; + return 0; } @@ -239,7 +534,7 @@ int ipcp_udp_du_read(uint32_t port_id, return 0; } -struct ipcp * ipcp_udp_create(char * ap_name, char * i_id) +struct ipcp * ipcp_udp_create(char * ap_name) { struct ipcp * i; struct ipcp_udp_data * data; @@ -249,13 +544,13 @@ struct ipcp * ipcp_udp_create(char * ap_name, char * i_id) if (i == NULL) return NULL; - data = ipcp_udp_data_create(ap_name, i_id); + data = ipcp_udp_data_create(ap_name); if (data == NULL) { free(i); return NULL; } - ops = malloc (sizeof *ops); + ops = malloc(sizeof *ops); if (ops == NULL) { free(data); free(i); @@ -266,8 +561,8 @@ struct ipcp * ipcp_udp_create(char * ap_name, char * i_id) ops->ipcp_enroll = NULL; /* shim */ ops->ipcp_reg = NULL; /* shim */ ops->ipcp_unreg = NULL; /* shim */ - ops->ipcp_ap_reg = ipcp_udp_ap_reg; - ops->ipcp_ap_unreg = ipcp_udp_ap_unreg; + ops->ipcp_name_reg = ipcp_udp_name_reg; + ops->ipcp_name_unreg = ipcp_udp_name_unreg; ops->ipcp_flow_alloc = ipcp_udp_flow_alloc; ops->ipcp_flow_alloc_resp = ipcp_udp_flow_alloc_resp; ops->ipcp_flow_dealloc = ipcp_udp_flow_dealloc; @@ -288,7 +583,6 @@ int main (int argc, char * argv[]) { /* argument 1: pid of irmd ? */ /* argument 2: ap name */ - /* argument 3: instance id */ struct sigaction sig_act; if (ipcp_arg_check(argc, argv)) { @@ -300,7 +594,7 @@ int main (int argc, char * argv[]) irmd_pid = atoi(argv[1]); /* init sig_act */ - memset (&sig_act, 0, sizeof sig_act); + memset(&sig_act, 0, sizeof sig_act); /* install signal traps */ sig_act.sa_sigaction = &ipcp_sig_handler; @@ -310,7 +604,7 @@ int main (int argc, char * argv[]) sigaction(SIGTERM, &sig_act, NULL); sigaction(SIGHUP, &sig_act, NULL); - _ipcp = ipcp_udp_create(argv[2], argv[3]); + _ipcp = ipcp_udp_create(argv[2]); if (_ipcp == NULL) { LOG_ERR("Won't."); exit(1); diff --git a/src/ipcpd/shim-udp/tests/shim_udp_test.c b/src/ipcpd/shim-udp/tests/shim_udp_test.c index 427d0e1e..d2b9c642 100644 --- a/src/ipcpd/shim-udp/tests/shim_udp_test.c +++ b/src/ipcpd/shim-udp/tests/shim_udp_test.c @@ -39,14 +39,13 @@ int shim_udp_test(int argc, char ** argv) /* argument 3: instance id */ struct shm_du_map * dum; char * ipcp_name = "test-shim-ipcp"; - char * i_id = "1"; int i = 0; char bogus[15]; - memset (&bogus, 0, 15); + memset(&bogus, 0, 15); struct dif_config conf; - memset (&conf, 0, sizeof conf); + memset(&conf, 0, sizeof conf); conf.dif_name = strdup("test-dif"); conf.type = IPCP_SHIM_UDP; conf.ip_addr = 0; @@ -57,32 +56,32 @@ int shim_udp_test(int argc, char ** argv) exit(1); } - _ipcp = ipcp_udp_create(ipcp_name, i_id); + _ipcp = ipcp_udp_create(ipcp_name); if (_ipcp == NULL) { LOG_ERR("Could not instantiate shim IPCP."); shm_du_map_close(dum); exit(1); } - if (ipcp_udp_bootstrap (&conf)) { + if (ipcp_udp_bootstrap(&conf)) { LOG_ERR("Could not bootstrap."); } - if(ipcp_udp_ap_reg("bogus ap", 1865)) { + if (ipcp_udp_name_reg("bogus name")) { LOG_ERR("Failed to register application."); shm_du_map_close(dum); exit(1); } - if (ipcp_udp_ap_unreg(1865)) { + if (ipcp_udp_name_unreg("bogus name")) { LOG_ERR("Failed to unregister application."); shm_du_map_close(dum); exit(1); } for (i = 0; i < 1000; ++i) { - sprintf (bogus, "bogus ap %4d", i); - if(ipcp_udp_ap_reg(bogus, i)) { + sprintf(bogus, "bogus name %4d", i); + if (ipcp_udp_name_reg(bogus)) { LOG_ERR("Failed to register application %s.", bogus); shm_du_map_close(dum); exit(1); @@ -90,8 +89,9 @@ int shim_udp_test(int argc, char ** argv) } for (i = 0; i < 1000; ++i) { - if(ipcp_udp_ap_unreg(i)) { - LOG_ERR("Failed to unregister application %d.", i); + sprintf(bogus, "bogus name %4d", i); + if(ipcp_udp_name_unreg(bogus)) { + LOG_ERR("Failed to unregister application %s.", bogus); shm_du_map_close(dum); exit(1); } diff --git a/src/irmd/main.c b/src/irmd/main.c index 13076cd1..31dabebb 100644 --- a/src/irmd/main.c +++ b/src/irmd/main.c @@ -41,23 +41,42 @@ #include <stdlib.h> #include <errno.h> #include <string.h> +#include <limits.h> + +/* FIXME: this smells like part of namespace management */ +#define ALL_DIFS "*" struct ipcp_entry { struct list_head next; - pid_t pid; instance_name_t * api; char * dif_name; }; +/* currently supports only registering whatevercast groups of a single AP */ +struct reg_name_entry { + struct list_head next; + + /* generic whatevercast name */ + char * name; + + /* FIXME: resolve name instead */ + instance_name_t * api; + uint32_t reg_ap_id; +}; + struct irm { + /* FIXME: list of ipcps can be merged with registered names */ struct list_head ipcps; + struct list_head reg_names; + + struct shm_du_map * dum; }; struct irm * instance = NULL; -struct shm_du_map * dum; -static pid_t find_pid_by_ipcp_name(instance_name_t * api) +static struct ipcp_entry * find_ipcp_entry_by_name(instance_name_t * api) { + struct ipcp_entry * tmp = NULL; struct list_head * pos = NULL; list_for_each(pos, &instance->ipcps) { @@ -65,35 +84,147 @@ static pid_t find_pid_by_ipcp_name(instance_name_t * api) list_entry(pos, struct ipcp_entry, next); if (instance_name_cmp(api, tmp->api) == 0) - return tmp->pid; + return tmp; } - return 0; + return tmp; } -static struct ipcp_entry * find_ipcp_by_name(instance_name_t * api) +static instance_name_t * get_ipcp_by_name(char * ap_name) { - struct ipcp_entry * tmp = NULL; struct list_head * pos = NULL; list_for_each(pos, &instance->ipcps) { - struct ipcp_entry * tmp = + struct ipcp_entry * e = list_entry(pos, struct ipcp_entry, next); - if (instance_name_cmp(api, tmp->api) == 0) - return tmp; + if (strcmp(e->api->name, ap_name) == 0) + return e->api; } - return tmp; + return NULL; +} + +static instance_name_t * get_ipcp_by_dif_name(char * dif_name) +{ + struct list_head * pos = NULL; + + list_for_each(pos, &instance->ipcps) { + struct ipcp_entry * e = + list_entry(pos, struct ipcp_entry, next); + + if (e->dif_name == NULL) + continue; + + if (strcmp(dif_name, e->dif_name) == 0) + return e->api; + } + + return NULL; +} + +static struct reg_name_entry * reg_name_entry_create() +{ + struct reg_name_entry * e = malloc(sizeof(*e)); + if (e == NULL) + return NULL; + + e->reg_ap_id = rand() % INT_MAX; + e->name = NULL; + + INIT_LIST_HEAD(&e->next); + + return e; +} + +static struct reg_name_entry * reg_name_entry_init(struct reg_name_entry * e, + char * name, + instance_name_t * api) +{ + if (e == NULL || name == NULL || api == NULL) + return NULL; + + e->name = name; + e->api = api; + + return e; +} + +static int reg_name_entry_destroy(struct reg_name_entry * e) +{ + if (e == NULL) + return 0; + + free(e->name); + instance_name_destroy(e->api); + return 0; +} + +static struct reg_name_entry * find_reg_name_entry_by_name(char * name) +{ + struct list_head * pos = NULL; + + list_for_each(pos, &instance->reg_names) { + struct reg_name_entry * e = + list_entry(pos, struct reg_name_entry, next); + + if (strcmp(name, e->name) == 0) + return e; + } + + return NULL; +} + +static struct reg_name_entry * find_reg_name_entry_by_id(uint32_t reg_ap_id) +{ + struct list_head * pos = NULL; + + list_for_each(pos, &instance->reg_names) { + struct reg_name_entry * e = + list_entry(pos, struct reg_name_entry, next); + + if (reg_ap_id == e->reg_ap_id) + return e; + } + + return NULL; +} + +/* FIXME: add only name when we have NSM solved */ +static int reg_name_entry_add_name_instance(char * name, instance_name_t * api) +{ + struct reg_name_entry * e = find_reg_name_entry_by_name(name); + if (e == NULL) { + e = reg_name_entry_create(); + e = reg_name_entry_init(e, name, api); + list_add(&e->next, &instance->reg_names); + return 0; + } + + /* already exists, we don't have NSM yet */ + return -1; +} + +static int reg_name_entry_del_name(char * name) +{ + struct reg_name_entry * e = find_reg_name_entry_by_name(name); + if (e == NULL) + return 0; + + list_del(&e->next); + + reg_name_entry_destroy(e); + + return 0; } -static int create_ipcp(instance_name_t * api, - enum ipcp_type ipcp_type) +static pid_t create_ipcp(char * ap_name, + enum ipcp_type ipcp_type) { pid_t pid; struct ipcp_entry * tmp = NULL; - pid = ipcp_create(api, ipcp_type); + pid = ipcp_create(ap_name, ipcp_type); if (pid == -1) { LOG_ERR("Failed to create IPCP"); return -1; @@ -106,36 +237,42 @@ static int create_ipcp(instance_name_t * api, INIT_LIST_HEAD(&tmp->next); - tmp->pid = pid; - tmp->api = instance_name_dup(api); + tmp->api = instance_name_create(); if (tmp->api == NULL) { free(tmp); return -1; } + if(instance_name_init_from(tmp->api, ap_name, pid) == NULL) { + instance_name_destroy(tmp->api); + free(tmp); + return -1; + } + tmp->dif_name = NULL; LOG_DBG("Created IPC process with pid %d", pid); list_add(&tmp->next, &instance->ipcps); - return 0; + return pid; } static int destroy_ipcp(instance_name_t * api) { - pid_t pid = 0; struct list_head * pos = NULL; struct list_head * n = NULL; - pid = find_pid_by_ipcp_name(api); - if (pid == 0) { - LOG_ERR("No such IPCP"); + if (api->id == 0) + api = get_ipcp_by_name(api->name); + + if (api == NULL) { + LOG_ERR("No such IPCP in the system."); return -1; } - LOG_DBG("Destroying ipcp with pid %d", pid); + LOG_DBG("Destroying ipcp %s-%d", api->name, api->id); - if (ipcp_destroy(pid)) + if (ipcp_destroy(api->id)) LOG_ERR("Could not destroy IPCP"); list_for_each_safe(pos, n, &(instance->ipcps)) { @@ -154,7 +291,15 @@ static int bootstrap_ipcp(instance_name_t * api, { struct ipcp_entry * entry = NULL; - entry = find_ipcp_by_name(api); + if (api->id == 0) + api = get_ipcp_by_name(api->name); + + if (api == NULL) { + LOG_ERR("No such IPCP in the system."); + return -1; + } + + entry = find_ipcp_entry_by_name(api); if (entry == NULL) { LOG_ERR("No such IPCP"); return -1; @@ -166,7 +311,7 @@ static int bootstrap_ipcp(instance_name_t * api, return -1; } - if (ipcp_bootstrap(entry->pid, conf)) { + if (ipcp_bootstrap(entry->api->id, conf)) { LOG_ERR("Could not bootstrap IPCP"); free(entry->dif_name); entry->dif_name = NULL; @@ -184,7 +329,7 @@ static int enroll_ipcp(instance_name_t * api, ssize_t n_1_difs_size = 0; struct ipcp_entry * entry = NULL; - entry = find_ipcp_by_name(api); + entry = find_ipcp_entry_by_name(api); if (entry == NULL) { LOG_ERR("No such IPCP"); return -1; @@ -212,7 +357,7 @@ static int enroll_ipcp(instance_name_t * api, return -1; } - if (ipcp_enroll(entry->pid, member, n_1_difs[0])) { + if (ipcp_enroll(entry->api->id, member, n_1_difs[0])) { LOG_ERR("Could not enroll IPCP"); free(entry->dif_name); entry->dif_name = NULL; @@ -226,15 +371,7 @@ static int reg_ipcp(instance_name_t * api, char ** difs, size_t difs_size) { - pid_t pid = 0; - - pid = find_pid_by_ipcp_name(api); - if (pid == 0) { - LOG_ERR("No such IPCP"); - return -1; - } - - if (ipcp_reg(pid, difs, difs_size)) { + if (ipcp_reg(api->id, difs, difs_size)) { LOG_ERR("Could not register IPCP to N-1 DIF(s)"); return -1; } @@ -246,15 +383,8 @@ static int unreg_ipcp(instance_name_t * api, char ** difs, size_t difs_size) { - pid_t pid = 0; - - pid = find_pid_by_ipcp_name(api); - if (pid == 0) { - LOG_ERR("No such IPCP"); - return -1; - } - if (ipcp_unreg(pid, difs, difs_size)) { + if (ipcp_unreg(api->id, difs, difs_size)) { LOG_ERR("Could not unregister IPCP from N-1 DIF(s)"); return -1; } @@ -262,20 +392,162 @@ static int unreg_ipcp(instance_name_t * api, return 0; } -static int ap_reg(char * ap_name, +static int ap_unreg_id(uint32_t reg_ap_id, + pid_t pid, + char ** difs, + size_t len) +{ + int i; + int ret = 0; + struct reg_name_entry * rne = NULL; + struct list_head * pos = NULL; + + rne = find_reg_name_entry_by_id(reg_ap_id); + if (rne == NULL) + return 0; /* no such id */ + + if (instance->ipcps.next == NULL) { + LOG_ERR("No IPCPs in this system."); + return 0; + } + + if (strcmp(difs[0], ALL_DIFS) == 0) { + list_for_each(pos, &instance->ipcps) { + struct ipcp_entry * e = + list_entry(pos, struct ipcp_entry, next); + + if (ipcp_name_unreg(e->api->id, rne->name)) { + LOG_ERR("Could not unregister %s in DIF %s.", + rne->name, e->dif_name); + --ret; + } + } + } else { + for (i = 0; i < len; ++i) { + if (ipcp_name_unreg(pid, rne->name)) { + LOG_ERR("Could not unregister %s in DIF %s.", + rne->name, difs[i]); + --ret; + } + } + } + + reg_name_entry_del_name(rne->name); + + return ret; +} + +static int ap_reg(char * ap_name, + pid_t ap_id, char ** difs, - size_t difs_size) + size_t len) { - return -1; + int i; + int ret = 0; + int reg_ap_id = 0; + struct list_head * pos = NULL; + struct reg_name_entry * rne = NULL; + + instance_name_t * api = NULL; + instance_name_t * ipcpi = NULL; + + if (instance->ipcps.next == NULL) + LOG_ERR("No IPCPs in this system."); + + /* check if this ap_name is already registered */ + rne = find_reg_name_entry_by_name(ap_name); + if (rne != NULL) + return -1; /* can only register one instance for now */ + + rne = reg_name_entry_create(); + if (rne == NULL) + return -1; + + api = instance_name_create(); + if (instance_name_init_from(api, ap_name, ap_id) == NULL) { + instance_name_destroy(api); + return -1; + } + + /* + * for now, the whatevercast name is the same as the ap_name and + * contains a single instance only + */ + + if (reg_name_entry_init(rne, strdup(ap_name), api) == NULL) { + reg_name_entry_destroy(rne); + instance_name_destroy(api); + return -1; + } + + if (strcmp(difs[0], ALL_DIFS) == 0) { + list_for_each(pos, &instance->ipcps) { + struct ipcp_entry * e = + list_entry(pos, struct ipcp_entry, next); + + if (ipcp_name_reg(e->api->id, ap_name)) { + LOG_ERR("Could not register %s in DIF %s.", + api->name, e->dif_name); + } else { + ++ret; + } + } + } else { + for (i = 0; i < len; ++i) { + ipcpi = get_ipcp_by_dif_name(difs[i]); + if (ipcpi == NULL) { + LOG_ERR("%s: No such DIF.", difs[i]); + continue; + } + + if (ipcp_name_reg(ipcpi->id, api->name)) { + LOG_ERR("Could not register %s in DIF %s.", + api->name, difs[i]); + } else { + ++ret; + } + } + } + + if (ret == 0) { + instance_name_destroy(api); + return -1; + } + /* for now, we register single instances */ + reg_name_entry_add_name_instance(strdup(ap_name), + instance_name_dup(api)); + instance_name_destroy(api); + + return reg_ap_id; } -static int ap_unreg(char * ap_name, +static int ap_unreg(char * ap_name, + pid_t ap_id, char ** difs, - size_t difs_size) + size_t len) { - return -1; + struct reg_name_entry * tmp = NULL; + + instance_name_t * api = instance_name_create(); + if (api == NULL) + return -1; + + if (instance_name_init_from(api, ap_name, ap_id) == NULL) { + instance_name_destroy(api); + return -1; + } + + /* check if ap_name is registered */ + tmp = find_reg_name_entry_by_name(api->name); + if (tmp == NULL) { + instance_name_destroy(api); + return 0; + } else { + return ap_unreg_id(tmp->reg_ap_id, api->id, difs, len); + } } + static int flow_accept(int fd, char * ap_name, char * ae_name) @@ -340,7 +612,7 @@ void irmd_sig_handler(int sig, siginfo_t * info, void * c) case SIGINT: case SIGTERM: case SIGHUP: - shm_du_map_close(dum); + shm_du_map_close(instance->dum); free(instance); exit(0); default: @@ -356,7 +628,7 @@ int main() struct sigaction sig_act; /* init sig_act */ - memset (&sig_act, 0, sizeof sig_act); + memset(&sig_act, 0, sizeof sig_act); /* install signal traps */ sig_act.sa_sigaction = &irmd_sig_handler; @@ -366,21 +638,24 @@ int main() sigaction(SIGTERM, &sig_act, NULL); sigaction(SIGHUP, &sig_act, NULL); - if (access("/dev/shm/" SHM_DU_MAP_FILENAME, F_OK) != -1) unlink("/dev/shm/" SHM_DU_MAP_FILENAME); - if ((dum = shm_du_map_create()) == NULL) - return -1; - instance = malloc(sizeof(*instance)); if (instance == NULL) return -1; + if ((instance->dum = shm_du_map_create()) == NULL) { + free(instance); + return -1; + } + INIT_LIST_HEAD(&instance->ipcps); + INIT_LIST_HEAD(&instance->reg_names); sockfd = server_socket_open(IRM_SOCK_PATH); if (sockfd < 0) { + shm_du_map_close(instance->dum); free(instance); return -1; } @@ -415,12 +690,13 @@ int main() } api.name = msg->ap_name; - api.id = msg->api_id; + if (msg->has_api_id == true) + api.id = msg->api_id; switch (msg->code) { case IRM_MSG_CODE__IRM_CREATE_IPCP: ret_msg.has_result = true; - ret_msg.result = create_ipcp(&api, + ret_msg.result = create_ipcp(msg->ap_name, msg->ipcp_type); break; case IRM_MSG_CODE__IRM_DESTROY_IPCP: @@ -451,12 +727,14 @@ int main() case IRM_MSG_CODE__IRM_AP_REG: ret_msg.has_fd = true; ret_msg.fd = ap_reg(msg->ap_name, + msg->pid, msg->dif_name, msg->n_dif_name); break; case IRM_MSG_CODE__IRM_AP_UNREG: ret_msg.has_result = true; ret_msg.result = ap_unreg(msg->ap_name, + msg->pid, msg->dif_name, msg->n_dif_name); break; @@ -473,15 +751,15 @@ int main() break; case IRM_MSG_CODE__IRM_FLOW_ALLOC: ret_msg.has_fd = true; - ret_msg.fd = flow_alloc(msg->dst_ap_name, + ret_msg.fd = flow_alloc(msg->dst_name, msg->ap_name, msg->ae_name, NULL, msg->oflags); break; case IRM_MSG_CODE__IRM_FLOW_ALLOC_RES: - ret_msg.has_result = true; - ret_msg.result = flow_alloc_res(msg->fd); + ret_msg.has_response = true; + ret_msg.response = flow_alloc_res(msg->fd); break; case IRM_MSG_CODE__IRM_FLOW_DEALLOC: ret_msg.has_result = true; @@ -493,15 +771,15 @@ int main() msg->oflags); break; case IRM_MSG_CODE__IPCP_FLOW_REQ_ARR: - ret_msg.has_fd = true; - ret_msg.fd = flow_req_arr(msg->port_id, - msg->ap_name, - msg->ae_name); + ret_msg.has_port_id = true; + ret_msg.port_id = flow_req_arr(msg->port_id, + msg->ap_name, + msg->ae_name); break; case IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY: ret_msg.has_result = true; ret_msg.result = flow_alloc_reply(msg->port_id, - msg->result); + msg->response); break; case IRM_MSG_CODE__IPCP_FLOW_DEALLOC: ret_msg.has_result = true; diff --git a/src/lib/dev.c b/src/lib/dev.c index c138b009..60dee701 100644 --- a/src/lib/dev.c +++ b/src/lib/dev.c @@ -43,9 +43,11 @@ int ap_reg(char * ap_name, return -EINVAL; } - msg.code = IRM_MSG_CODE__IRM_AP_REG; - msg.ap_name = ap_name; - msg.dif_name = difs; + msg.code = IRM_MSG_CODE__IRM_AP_REG; + msg.has_pid = true; + msg.pid = getpid(); + msg.ap_name = ap_name; + msg.dif_name = difs; msg.n_dif_name = difs_size; recv_msg = send_recv_irm_msg(&msg); @@ -78,9 +80,11 @@ int ap_unreg(char * ap_name, return -EINVAL; } - msg.code = IRM_MSG_CODE__IRM_AP_UNREG; - msg.ap_name = ap_name; - msg.dif_name = difs; + msg.code = IRM_MSG_CODE__IRM_AP_UNREG; + msg.has_pid = true; + msg.pid = getpid(); + msg.ap_name = ap_name; + msg.dif_name = difs; msg.n_dif_name = difs_size; recv_msg = send_recv_irm_msg(&msg); @@ -110,9 +114,11 @@ int flow_accept(int fd, return -EINVAL; } - msg.code = IRM_MSG_CODE__IRM_FLOW_ACCEPT; - msg.has_fd = true; - msg.fd = fd; + msg.code = IRM_MSG_CODE__IRM_FLOW_ACCEPT; + msg.has_pid = true; + msg.pid = getpid(); + msg.has_fd = true; + msg.fd = fd; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -122,7 +128,7 @@ int flow_accept(int fd, irm_msg__free_unpacked(recv_msg, NULL); return -1; } - cli_fd = recv_msg->fd; + cli_fd = recv_msg->fd; ap_name = recv_msg->ap_name; ae_name = recv_msg->ae_name; @@ -131,17 +137,19 @@ int flow_accept(int fd, } int flow_alloc_resp(int fd, - int result) + int response) { irm_msg_t msg = IRM_MSG__INIT; irm_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC_RESP; - msg.has_fd = true; + msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC_RESP; + msg.has_pid = true; + msg.pid = getpid(); + msg.has_fd = true; msg.fd = fd; - msg.has_result = true; - msg.result = result; + msg.has_response = true; + msg.response = response; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -158,7 +166,7 @@ int flow_alloc_resp(int fd, return ret; } -int flow_alloc(char * dst_ap_name, +int flow_alloc(char * dst_name, char * src_ap_name, char * src_ae_name, struct qos_spec * qos, @@ -168,18 +176,18 @@ int flow_alloc(char * dst_ap_name, irm_msg_t * recv_msg = NULL; int fd = 0; - if (dst_ap_name == NULL || + if (dst_name == NULL || src_ap_name == NULL || qos == NULL) { return -EINVAL; } - msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC; - msg.dst_ap_name = dst_ap_name; - msg.ap_name = src_ap_name; - msg.ae_name = src_ae_name; - msg.has_oflags = true; - msg.oflags = oflags; + msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC; + msg.dst_name = dst_name; + msg.ap_name = src_ap_name; + msg.ae_name = src_ae_name; + msg.has_oflags = true; + msg.oflags = oflags; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -201,9 +209,11 @@ int flow_alloc_res(int fd) irm_msg_t * recv_msg = NULL; int result = 0; - msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC_RES; - msg.has_fd = true; - msg.fd = fd; + msg.code = IRM_MSG_CODE__IRM_FLOW_ALLOC_RES; + msg.has_pid = true; + msg.pid = getpid(); + msg.has_fd = true; + msg.fd = fd; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -226,9 +236,11 @@ int flow_dealloc(int fd) irm_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IRM_MSG_CODE__IRM_FLOW_DEALLOC; - msg.has_fd = true; - msg.fd = fd; + msg.code = IRM_MSG_CODE__IRM_FLOW_DEALLOC; + msg.has_pid = true; + msg.pid = getpid(); + msg.has_fd = true; + msg.fd = fd; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -251,9 +263,11 @@ int flow_cntl(int fd, int oflags) irm_msg_t * recv_msg = NULL; int ret = -1; - msg.has_fd = true; - msg.fd = fd; - msg.oflags = oflags; + msg.has_pid = true; + msg.pid = getpid(); + msg.has_fd = true; + msg.fd = fd; + msg.oflags = oflags; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) diff --git a/src/lib/ipcp.c b/src/lib/ipcp.c index 338d8683..387572b3 100644 --- a/src/lib/ipcp.c +++ b/src/lib/ipcp.c @@ -99,12 +99,11 @@ static ipcp_msg_t * send_recv_ipcp_msg(pid_t pid, return recv_msg; } -pid_t ipcp_create(instance_name_t * api, - enum ipcp_type ipcp_type) +pid_t ipcp_create(char * ipcp_name, + enum ipcp_type ipcp_type) { pid_t pid = 0; char irmd_pid[10]; - char * api_id = NULL; size_t len = 0; char * ipcp_dir = "bin"; char * full_name = NULL; @@ -122,21 +121,12 @@ pid_t ipcp_create(instance_name_t * api, return pid; } - api_id = malloc(n_digits(api->id) + 1); - if (!api_id) { - LOG_ERR("Failed to malloc"); - exit(EXIT_FAILURE); - } - sprintf(api_id, "%d", api->id); - if (ipcp_type == IPCP_NORMAL) exec_name = IPCP_NORMAL_EXEC; else if (ipcp_type == IPCP_SHIM_UDP) exec_name = IPCP_SHIM_UDP_EXEC; - else { - free(api_id); + else exit(EXIT_FAILURE); - } len += strlen(INSTALL_DIR); len += strlen(ipcp_dir); @@ -146,7 +136,6 @@ pid_t ipcp_create(instance_name_t * api, full_name = malloc(len + 1); if (full_name == NULL) { LOG_ERR("Failed to malloc"); - free(api_id); exit(EXIT_FAILURE); } @@ -161,8 +150,7 @@ pid_t ipcp_create(instance_name_t * api, char * argv[] = {full_name, irmd_pid, - api->name, - api_id, + ipcp_name, 0}; char * envp[] = {0}; @@ -172,7 +160,6 @@ pid_t ipcp_create(instance_name_t * api, LOG_DBG("%s", strerror(errno)); LOG_ERR("Failed to load IPCP daemon"); LOG_ERR("Make sure to run the installed version"); - free(api_id); free(full_name); exit(EXIT_FAILURE); } @@ -326,21 +313,18 @@ int ipcp_enroll(pid_t pid, return ret; } -int ipcp_ap_reg(pid_t pid, - uint32_t reg_ap_id, - char * ap_name) +int ipcp_name_reg(pid_t pid, + char * name) { ipcp_msg_t msg = IPCP_MSG__INIT; ipcp_msg_t * recv_msg = NULL; int ret = -1; - if (ap_name == NULL) + if (name == NULL) return -1; - msg.code = IPCP_MSG_CODE__IPCP_AP_REG; - msg.ap_name = ap_name; - msg.has_reg_ap_id = true; - msg.reg_ap_id = reg_ap_id; + msg.code = IPCP_MSG_CODE__IPCP_NAME_REG; + msg.name = name; recv_msg = send_recv_ipcp_msg(pid, &msg); if (recv_msg == NULL) @@ -357,16 +341,15 @@ int ipcp_ap_reg(pid_t pid, return ret; } -int ipcp_ap_unreg(pid_t pid, - uint32_t reg_ap_id) +int ipcp_name_unreg(pid_t pid, + char * name) { ipcp_msg_t msg = IPCP_MSG__INIT; ipcp_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IPCP_MSG_CODE__IPCP_AP_UNREG; - msg.has_reg_ap_id = true; - msg.reg_ap_id = reg_ap_id; + msg.code = IPCP_MSG_CODE__IPCP_NAME_UNREG; + msg.name = name; recv_msg = send_recv_ipcp_msg(pid, &msg); if (recv_msg == NULL) @@ -385,7 +368,7 @@ int ipcp_ap_unreg(pid_t pid, int ipcp_flow_alloc(pid_t pid, uint32_t port_id, - char * dst_ap_name, + char * dst_name, char * src_ap_name, char * src_ae_name, struct qos_spec * qos) @@ -394,13 +377,13 @@ int ipcp_flow_alloc(pid_t pid, ipcp_msg_t * recv_msg = NULL; int ret = -1; - if (dst_ap_name == NULL || src_ap_name == NULL || src_ae_name == NULL) + if (dst_name == NULL || src_ap_name == NULL || src_ae_name == NULL) return -EINVAL; msg.code = IPCP_MSG_CODE__IPCP_FLOW_ALLOC; - msg.ap_name = src_ap_name; - msg.ae_name = src_ae_name; - msg.dst_ap_name = dst_ap_name; + msg.src_ap_name = src_ap_name; + msg.src_ae_name = src_ae_name; + msg.dst_name = dst_name; msg.port_id = port_id; msg.has_port_id = true; @@ -449,22 +432,21 @@ int ipcp_flow_alloc_resp(pid_t pid, } int ipcp_flow_req_arr(pid_t pid, - uint32_t reg_ap_id, - char * ap_name, - char * ae_name) + char * dst_name, + char * src_ap_name, + char * src_ae_name) { irm_msg_t msg = IRM_MSG__INIT; irm_msg_t * recv_msg = NULL; int fd = -1; - if (ap_name == NULL || ae_name == NULL) + if (src_ap_name == NULL || src_ae_name == NULL) return -EINVAL; msg.code = IRM_MSG_CODE__IPCP_FLOW_REQ_ARR; - msg.ap_name = ap_name; - msg.ae_name = ae_name; - msg.reg_ap_id = reg_ap_id; - msg.has_reg_ap_id = true; + msg.dst_name = dst_name; + msg.ap_name = src_ap_name; + msg.ae_name = src_ae_name; msg.pid = pid; msg.has_pid = true; @@ -485,17 +467,17 @@ int ipcp_flow_req_arr(pid_t pid, int ipcp_flow_alloc_reply(pid_t pid, uint32_t port_id, - int result) + int response) { irm_msg_t msg = IRM_MSG__INIT; irm_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY; - msg.port_id = port_id; - msg.has_port_id = true; - msg.result = result; - msg.has_result = true; + msg.code = IRM_MSG_CODE__IPCP_FLOW_ALLOC_REPLY; + msg.port_id = port_id; + msg.has_port_id = true; + msg.response = response; + msg.has_response = true; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) @@ -521,9 +503,9 @@ int ipcp_flow_dealloc(pid_t pid, ipcp_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IPCP_MSG_CODE__IPCP_FLOW_DEALLOC; + msg.code = IPCP_MSG_CODE__IPCP_FLOW_DEALLOC; msg.has_port_id = true; - msg.port_id = port_id; + msg.port_id = port_id; recv_msg = send_recv_ipcp_msg(pid, &msg); if (recv_msg == NULL) @@ -543,9 +525,9 @@ int ipcp_flow_dealloc(pid_t pid, irm_msg_t * recv_msg = NULL; int ret = -1; - msg.code = IRM_MSG_CODE__IPCP_FLOW_DEALLOC; + msg.code = IRM_MSG_CODE__IPCP_FLOW_DEALLOC; msg.has_port_id = true; - msg.port_id = port_id; + msg.port_id = port_id; recv_msg = send_recv_irm_msg(&msg); if (recv_msg == NULL) diff --git a/src/lib/ipcpd_messages.proto b/src/lib/ipcpd_messages.proto index 796638c7..da4bb469 100644 --- a/src/lib/ipcpd_messages.proto +++ b/src/lib/ipcpd_messages.proto @@ -1,16 +1,16 @@ import "dif_config.proto"; enum ipcp_msg_code { - IPCP_BOOTSTRAP = 1; - IPCP_ENROLL = 2; - IPCP_REG = 3; - IPCP_UNREG = 4; - IPCP_AP_REG = 5; - IPCP_AP_UNREG = 6; - IPCP_FLOW_ALLOC = 7; - IPCP_FLOW_ALLOC_RESP = 8; - IPCP_FLOW_DEALLOC = 9; - IPCP_REPLY = 10; + IPCP_BOOTSTRAP = 1; + IPCP_ENROLL = 2; + IPCP_REG = 3; + IPCP_UNREG = 4; + IPCP_NAME_REG = 5; + IPCP_NAME_UNREG = 6; + IPCP_FLOW_ALLOC = 7; + IPCP_FLOW_ALLOC_RESP = 8; + IPCP_FLOW_DEALLOC = 9; + IPCP_REPLY = 10; }; message ipcp_msg { @@ -19,11 +19,12 @@ message ipcp_msg { optional string n_1_dif = 3; repeated string dif_names = 4; optional int32 len = 5; - optional string ap_name = 6; - optional int32 reg_ap_id = 7; - optional int32 port_id = 8; - optional string dst_ap_name = 9; - optional string ae_name = 10; + optional string name = 6; + optional int32 port_id = 7; + optional string dst_name = 8; + optional string src_ap_name = 9; + optional string src_ae_name = 10; optional dif_config_msg conf = 11; optional int32 result = 12; + optional int32 fd = 13; }; diff --git a/src/lib/irm.c b/src/lib/irm.c index b17cb04c..cc1c0d01 100644 --- a/src/lib/irm.c +++ b/src/lib/irm.c @@ -30,20 +30,18 @@ #include <stdlib.h> -int irm_create_ipcp(instance_name_t * api, - enum ipcp_type ipcp_type) +pid_t irm_create_ipcp(char * ipcp_name, + enum ipcp_type ipcp_type) { irm_msg_t msg = IRM_MSG__INIT; irm_msg_t * recv_msg = NULL; int ret = -1; - if (api == NULL || api->name == NULL) + if (ipcp_name == NULL) return -EINVAL; msg.code = IRM_MSG_CODE__IRM_CREATE_IPCP; - msg.ap_name = api->name; - msg.has_api_id = true; - msg.api_id = api->id; + msg.ap_name = ipcp_name; msg.has_ipcp_type = true; msg.ipcp_type = ipcp_type; diff --git a/src/lib/irmd_messages.proto b/src/lib/irmd_messages.proto index 92ea439e..89e2c882 100644 --- a/src/lib/irmd_messages.proto +++ b/src/lib/irmd_messages.proto @@ -1,41 +1,63 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * IRM messages + * + * Sander Vrijders <sander.vrijders@intec.ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + import "dif_config.proto"; enum irm_msg_code { - IRM_CREATE_IPCP = 1; - IRM_DESTROY_IPCP = 2; - IRM_BOOTSTRAP_IPCP = 3; - IRM_ENROLL_IPCP = 4; - IRM_REG_IPCP = 5; - IRM_UNREG_IPCP = 6; - IRM_AP_REG = 7; - IRM_AP_UNREG = 8; - IRM_FLOW_ACCEPT = 9; - IRM_FLOW_ALLOC_RESP = 10; - IRM_FLOW_ALLOC = 11; - IRM_FLOW_ALLOC_RES = 12; - IRM_FLOW_DEALLOC = 13; - IRM_FLOW_CONTROL = 14; - IRM_FLOW_WRITE = 15; - IRM_FLOW_READ = 16; - IPCP_FLOW_REQ_ARR = 17; + IRM_CREATE_IPCP = 1; + IRM_DESTROY_IPCP = 2; + IRM_BOOTSTRAP_IPCP = 3; + IRM_ENROLL_IPCP = 4; + IRM_REG_IPCP = 5; + IRM_UNREG_IPCP = 6; + IRM_AP_REG = 7; + IRM_AP_UNREG = 8; + IRM_FLOW_ACCEPT = 9; + IRM_FLOW_ALLOC_RESP = 10; + IRM_FLOW_ALLOC = 11; + IRM_FLOW_ALLOC_RES = 12; + IRM_FLOW_DEALLOC = 13; + IRM_FLOW_CONTROL = 14; + IRM_FLOW_WRITE = 15; + IRM_FLOW_READ = 16; + IPCP_FLOW_REQ_ARR = 17; IPCP_FLOW_ALLOC_REPLY = 18; - IPCP_FLOW_DEALLOC = 19; - IRM_REPLY = 20; + IPCP_FLOW_DEALLOC = 19; + IRM_REPLY = 20; }; message irm_msg { required irm_msg_code code = 1; optional string ap_name = 2; - optional uint32 api_id = 3; optional string ae_name = 4; + optional uint32 api_id = 3; optional uint32 ipcp_type = 5; repeated string dif_name = 6; optional int32 fd = 7; - optional int32 result = 8; + optional int32 response = 8; optional int32 oflags = 9; - optional string dst_ap_name = 10; + optional string dst_name = 10; optional uint32 port_id = 11; - optional uint32 reg_ap_id = 12; - optional int32 pid = 13; - optional dif_config_msg conf = 14; + optional int32 pid = 12; + optional dif_config_msg conf = 13; + optional int32 result = 14; }; diff --git a/src/tools/echo/echo_server.c b/src/tools/echo/echo_server.c index b1547d8c..e457e22b 100644 --- a/src/tools/echo/echo_server.c +++ b/src/tools/echo/echo_server.c @@ -64,15 +64,16 @@ int server_main() return -1; } + printf("Echo server started...\n"); + while (true) { client_fd = flow_accept(server_fd, client_name, NULL); if (client_fd < 0) { - printf("Failed to accept flow\n"); continue; } - printf("New flow from %s", client_name); + printf("New flow from %s\n", client_name); if (flow_alloc_resp(client_fd, 0)) { printf("Failed to give an allocate response\n"); diff --git a/src/tools/irm/irm_create_ipcp.c b/src/tools/irm/irm_create_ipcp.c index 08b55259..e82bd980 100644 --- a/src/tools/irm/irm_create_ipcp.c +++ b/src/tools/irm/irm_create_ipcp.c @@ -39,7 +39,6 @@ static void usage() { printf("Usage: irm create_ipcp\n" " ap <application process name>\n" - " [api <application process instance>]\n" " type [TYPE]\n\n" "where TYPE = {" NORMAL " " SHIM_UDP "}\n"); } @@ -47,16 +46,14 @@ static void usage() int do_create_ipcp(int argc, char ** argv) { char * ipcp_type = NULL; - instance_name_t api = {NULL, 0}; + char * ipcp_name = NULL; enum ipcp_type type = 0; while (argc > 0) { if (matches(*argv, "type") == 0) { ipcp_type = *(argv + 1); } else if (matches(*argv, "ap") == 0) { - api.name = *(argv + 1); - } else if (matches(*argv, "api") == 0) { - api.id = atoi(*(argv + 1)); + ipcp_name = *(argv + 1); } else { printf("\"%s\" is unknown, try \"irm " "create_ipcp\".\n", *argv); @@ -67,7 +64,7 @@ int do_create_ipcp(int argc, char ** argv) argv += 2; } - if (ipcp_type == NULL || api.name == NULL) { + if (ipcp_type == NULL || ipcp_name == NULL) { usage(); return -1; } @@ -81,5 +78,5 @@ int do_create_ipcp(int argc, char ** argv) return -1; } - return irm_create_ipcp(&api, type); + return !irm_create_ipcp(ipcp_name, type); } |