diff options
Diffstat (limited to 'src/ipcpd/normal')
| -rw-r--r-- | src/ipcpd/normal/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/ipcpd/normal/connmgr.c | 350 | ||||
| -rw-r--r-- | src/ipcpd/normal/connmgr.h | 57 | ||||
| -rw-r--r-- | src/ipcpd/normal/enroll.c | 2 | ||||
| -rw-r--r-- | src/ipcpd/normal/fmgr.c | 2 | ||||
| -rw-r--r-- | src/ipcpd/normal/frct.c | 8 | ||||
| -rw-r--r-- | src/ipcpd/normal/gam.c | 4 | ||||
| -rw-r--r-- | src/ipcpd/normal/main.c | 93 | ||||
| -rw-r--r-- | src/ipcpd/normal/pol/complete.c | 13 |
9 files changed, 445 insertions, 85 deletions
diff --git a/src/ipcpd/normal/CMakeLists.txt b/src/ipcpd/normal/CMakeLists.txt index 7e10cc0d..70742336 100644 --- a/src/ipcpd/normal/CMakeLists.txt +++ b/src/ipcpd/normal/CMakeLists.txt @@ -20,6 +20,7 @@ set(SOURCE_FILES # Add source files here addr_auth.c cdap_flow.c + connmgr.c dir.c enroll.c fmgr.c diff --git a/src/ipcpd/normal/connmgr.c b/src/ipcpd/normal/connmgr.c new file mode 100644 index 00000000..387c38fd --- /dev/null +++ b/src/ipcpd/normal/connmgr.c @@ -0,0 +1,350 @@ +/* + * Ouroboros - Copyright (C) 2016 - 2017 + * + * Handles the different AP connections + * + * Sander Vrijders <sander.vrijders@ugent.be> + * Dimitri Staessens <dimitri.staessens@ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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. + */ + +#define OUROBOROS_PREFIX "normal-ipcp" + +#include <ouroboros/config.h> +#include <ouroboros/logs.h> +#include <ouroboros/dev.h> +#include <ouroboros/cacep.h> +#include <ouroboros/cdap.h> +#include <ouroboros/errno.h> + +#include "ae.h" +#include "connmgr.h" +#include "enroll.h" +#include "fmgr.h" +#include "frct.h" +#include "ipcp.h" +#include "ribmgr.h" + +#include <pthread.h> +#include <string.h> +#include <stdlib.h> +#include <assert.h> + +#define FRCT_PROTO "frct" + +struct ae_conn { + struct list_head next; + struct conn conn; +}; + +struct ae { + struct list_head next; + struct conn_info info; + + struct list_head conn_list; + pthread_cond_t conn_cond; + pthread_mutex_t conn_lock; +}; + +struct { + pthread_t acceptor; + + struct list_head aes; + pthread_mutex_t aes_lock; +} connmgr; + +static int add_ae_conn(struct ae * ae, + int fd, + qosspec_t qs, + struct conn_info * rcv_info) +{ + struct ae_conn * ae_conn = NULL; + + ae_conn = malloc(sizeof(*ae_conn)); + if (ae_conn == NULL) { + log_err("Not enough memory."); + return -1; + } + + ae_conn->conn.conn_info = *rcv_info; + ae_conn->conn.flow_info.fd = fd; + ae_conn->conn.flow_info.qs = qs; + + list_head_init(&ae_conn->next); + + pthread_mutex_lock(&ae->conn_lock); + list_add(&ae_conn->next, &ae->conn_list); + pthread_cond_signal(&ae->conn_cond); + pthread_mutex_unlock(&ae->conn_lock); + + return 0; +} + +static struct ae * find_ae_by_name(char * name) +{ + struct list_head * p = NULL; + + list_for_each(p, &connmgr.aes) { + struct ae * ae = list_entry(p, struct ae, next); + if (strcmp(ae->info.ae_name, name) == 0) + return ae; + } + + return NULL; +} + +static void * flow_acceptor(void * o) +{ + int fd; + qosspec_t qs; + struct conn_info rcv_info; + struct conn_info fail_info; + struct ae * ae = NULL; + + (void) o; + + memset(&fail_info, 0, sizeof(fail_info)); + + while (true) { + pthread_rwlock_rdlock(&ipcpi.state_lock); + + if (ipcp_get_state() != IPCP_OPERATIONAL) { + pthread_rwlock_unlock(&ipcpi.state_lock); + log_info("Shutting down flow acceptor."); + return 0; + } + + pthread_rwlock_unlock(&ipcpi.state_lock); + + fd = flow_accept(&qs); + if (fd < 0) { + if (fd != -EIRMD) + log_warn("Flow accept failed: %d", fd); + continue; + } + + if (flow_alloc_resp(fd, 0)) { + log_err("Failed to respond to flow alloc request."); + continue; + } + + if (cacep_rcv(fd, &rcv_info)) { + log_err("Error establishing application connection."); + flow_dealloc(fd); + continue; + } + + pthread_mutex_lock(&connmgr.aes_lock); + ae = find_ae_by_name(rcv_info.ae_name); + pthread_mutex_unlock(&connmgr.aes_lock); + + if (ae != NULL) { + if (cacep_snd(fd, &ae->info)) { + log_err("Failed to respond to req."); + flow_dealloc(fd); + continue; + } + + if (add_ae_conn(ae, fd, qs, &rcv_info)) { + log_err("Failed to add ae conn."); + flow_dealloc(fd); + continue; + } + } else { + cacep_snd(fd, &fail_info); + flow_dealloc(fd); + } + } + + return (void *) 0; +} + +int connmgr_init(void) +{ + list_head_init(&connmgr.aes); + + if (pthread_mutex_init(&connmgr.aes_lock, NULL)) + return -1; + + return 0; +} + +int connmgr_start(void) +{ + pthread_create(&connmgr.acceptor, NULL, flow_acceptor, NULL); + + return 0; +} + +void connmgr_stop(void) +{ + pthread_cancel(connmgr.acceptor); + pthread_join(connmgr.acceptor, NULL); +} + +void connmgr_fini(void) +{ + struct list_head * p = NULL; + struct list_head * n = NULL; + + pthread_mutex_lock(&connmgr.aes_lock); + + list_for_each_safe(p, n, &connmgr.aes) { + struct ae * e = list_entry(p, struct ae, next); + connmgr_ae_destroy(e); + } + + pthread_mutex_unlock(&connmgr.aes_lock); + + pthread_mutex_destroy(&connmgr.aes_lock); +} + +struct ae * connmgr_ae_create(struct conn_info info) +{ + struct ae * ae; + + ae = malloc(sizeof(*ae)); + if (ae == NULL) + return NULL; + + list_head_init(&ae->next); + list_head_init(&ae->conn_list); + + ae->info = info; + + if (pthread_mutex_init(&ae->conn_lock, NULL)) { + free(ae); + return NULL; + } + + if (pthread_cond_init(&ae->conn_cond, NULL)) { + pthread_mutex_destroy(&ae->conn_lock); + free(ae); + return NULL; + } + + pthread_mutex_lock(&connmgr.aes_lock); + list_add(&ae->next, &connmgr.aes); + pthread_mutex_unlock(&connmgr.aes_lock); + + return ae; +} + +void connmgr_ae_destroy(struct ae * ae) +{ + struct list_head * p = NULL; + struct list_head * n = NULL; + + assert(ae); + + pthread_mutex_lock(&connmgr.aes_lock); + pthread_mutex_lock(&ae->conn_lock); + + list_for_each_safe(p, n, &ae->conn_list) { + struct ae_conn * e = list_entry(p, struct ae_conn, next); + list_del(&e->next); + free(e); + } + + pthread_mutex_unlock(&ae->conn_lock); + + pthread_cond_destroy(&ae->conn_cond); + pthread_mutex_destroy(&ae->conn_lock); + + list_del(&ae->next); + + pthread_mutex_unlock(&connmgr.aes_lock); + + free(ae); +} + +int connmgr_alloc(struct ae * ae, + char * dst_name, + qosspec_t qs, + struct conn * conn) +{ + assert(ae); + assert(dst_name); + assert(conn); + + memset(&conn->conn_info, 0, sizeof(conn->conn_info)); + + conn->flow_info.fd = flow_alloc(dst_name, &qs); + if (conn->flow_info.fd < 0) { + log_err("Failed to allocate flow to %s.", dst_name); + return -1; + } + + conn->flow_info.qs = qs; + + if (flow_alloc_res(conn->flow_info.fd)) { + log_err("Flow allocation to %s failed.", dst_name); + flow_dealloc(conn->flow_info.fd); + return -1; + } + + if (cacep_snd(conn->flow_info.fd, &ae->info)) { + log_err("Failed to create application connection."); + flow_dealloc(conn->flow_info.fd); + return -1; + } + + if (cacep_rcv(conn->flow_info.fd, &conn->conn_info)) { + log_err("Failed to connect to application."); + flow_dealloc(conn->flow_info.fd); + return -1; + } + + if (strcmp(ae->info.protocol, conn->conn_info.protocol) || + ae->info.pref_version != conn->conn_info.pref_version || + ae->info.pref_syntax != conn->conn_info.pref_syntax) { + flow_dealloc(conn->flow_info.fd); + return -1; + } + + return 0; +} + +int connmgr_wait(struct ae * ae, + struct conn * conn) +{ + struct ae_conn * ae_conn; + + assert(ae); + assert(conn); + + pthread_mutex_lock(&ae->conn_lock); + + pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock, + (void *) &ae->conn_lock); + + while (list_is_empty(&ae->conn_list)) + pthread_cond_wait(&ae->conn_cond, &ae->conn_lock); + + ae_conn = list_first_entry((&ae->conn_list), struct ae_conn, next); + if (ae_conn == NULL) { + pthread_mutex_unlock(&ae->conn_lock); + return -1; + } + + *conn = ae_conn->conn; + + list_del(&ae_conn->next); + free(ae_conn); + + pthread_cleanup_pop(true); + + return 0; +} diff --git a/src/ipcpd/normal/connmgr.h b/src/ipcpd/normal/connmgr.h new file mode 100644 index 00000000..bfb3d762 --- /dev/null +++ b/src/ipcpd/normal/connmgr.h @@ -0,0 +1,57 @@ +/* + * Ouroboros - Copyright (C) 2016 - 2017 + * + * Handles the different AP connections + * + * Sander Vrijders <sander.vrijders@ugent.be> + * Dimitri Staessens <dimitri.staessens@ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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. + */ + +#ifndef OUROBOROS_IPCPD_NORMAL_CONNMGR_H +#define OUROBOROS_IPCPD_NORMAL_CONNMGR_H + +#include <ouroboros/cacep.h> +#include <ouroboros/qos.h> + +struct conn { + struct conn_info conn_info; + struct flow_info { + int fd; + qosspec_t qs; + } flow_info; +}; + +int connmgr_init(void); + +void connmgr_fini(void); + +int connmgr_start(void); + +void connmgr_stop(void); + +struct ae * connmgr_ae_create(struct conn_info info); + +void connmgr_ae_destroy(struct ae * ae); + +int connmgr_alloc(struct ae * ae, + char * dst_name, + qosspec_t qs, + struct conn * conn); + +int connmgr_wait(struct ae * ae, + struct conn * conn); + +#endif /* OUROBOROS_IPCPD_NORMAL_CONNMGR_H */ diff --git a/src/ipcpd/normal/enroll.c b/src/ipcpd/normal/enroll.c index 5c7ebd7e..9c3b9973 100644 --- a/src/ipcpd/normal/enroll.c +++ b/src/ipcpd/normal/enroll.c @@ -197,7 +197,7 @@ int enroll_boot(char * dst_name) delta_t = ts_diff_ms(&t0, &rtt); - assert (len == 2 * sizeof (uint64_t)); + assert(len == 2 * sizeof (uint64_t)); rtt.tv_sec = ntoh64(((uint64_t *) data)[0]); rtt.tv_nsec = ntoh64(((uint64_t *) data)[1]); diff --git a/src/ipcpd/normal/fmgr.c b/src/ipcpd/normal/fmgr.c index 0c927fc7..34724ddd 100644 --- a/src/ipcpd/normal/fmgr.c +++ b/src/ipcpd/normal/fmgr.c @@ -162,7 +162,7 @@ void * fmgr_nm1_sdu_reader(void * o) shm_pci_des(sdb, &pci); - if (pci.dst_addr != ipcpi.address) { + if (pci.dst_addr != ipcpi.dt_addr) { log_dbg("PDU needs to be forwarded."); if (pci.ttl == 0) { diff --git a/src/ipcpd/normal/frct.c b/src/ipcpd/normal/frct.c index 915feaf8..c9b23060 100644 --- a/src/ipcpd/normal/frct.c +++ b/src/ipcpd/normal/frct.c @@ -285,7 +285,7 @@ cep_id_t frct_i_create(uint64_t address, pci.pdu_type = PDU_TYPE_MGMT; pci.dst_addr = address; - pci.src_addr = ipcpi.address; + pci.src_addr = ipcpi.dt_addr; pci.dst_cep_id = 0; pci.src_cep_id = id; pci.seqno = 0; @@ -330,7 +330,7 @@ int frct_i_accept(cep_id_t id, pci.pdu_type = PDU_TYPE_MGMT; pci.dst_addr = instance->r_address; - pci.src_addr = ipcpi.address; + pci.src_addr = ipcpi.dt_addr; pci.dst_cep_id = instance->r_cep_id; pci.src_cep_id = instance->cep_id; pci.seqno = 0; @@ -367,7 +367,7 @@ int frct_i_destroy(cep_id_t id, pci.pdu_type = PDU_TYPE_MGMT; pci.dst_addr = instance->r_address; - pci.src_addr = ipcpi.address; + pci.src_addr = ipcpi.dt_addr; pci.dst_cep_id = instance->r_cep_id; pci.src_cep_id = instance->cep_id; pci.seqno = 0; @@ -413,7 +413,7 @@ int frct_i_write_sdu(cep_id_t id, pci.pdu_type = PDU_TYPE_DTP; pci.dst_addr = instance->r_address; - pci.src_addr = ipcpi.address; + pci.src_addr = ipcpi.dt_addr; pci.dst_cep_id = instance->r_cep_id; pci.src_cep_id = instance->cep_id; pci.seqno = (instance->seqno)++; diff --git a/src/ipcpd/normal/gam.c b/src/ipcpd/normal/gam.c index f98c0d4f..212cfd83 100644 --- a/src/ipcpd/normal/gam.c +++ b/src/ipcpd/normal/gam.c @@ -185,7 +185,7 @@ int gam_flow_arr(struct gam * instance, strcpy(snd_info.protocol, CDAP_PROTO); snd_info.pref_version = 1; snd_info.pref_syntax = PROTO_GPB; - snd_info.ae.addr = ipcpi.address; + snd_info.addr = ipcpi.dt_addr; if (cacep_rcv(fd, rcv_info)) { log_err("Error establishing application connection."); @@ -266,7 +266,7 @@ int gam_flow_alloc(struct gam * instance, strcpy(snd_info.protocol, CDAP_PROTO); snd_info.pref_version = 1; snd_info.pref_syntax = PROTO_GPB; - snd_info.ae.addr = ipcpi.address; + snd_info.addr = ipcpi.dt_addr; if (cacep_snd(fd, &snd_info)) { log_err("Failed to create application connection."); diff --git a/src/ipcpd/normal/main.c b/src/ipcpd/normal/main.c index c75a74d6..3e5907a8 100644 --- a/src/ipcpd/normal/main.c +++ b/src/ipcpd/normal/main.c @@ -24,7 +24,6 @@ #include <ouroboros/config.h> #include <ouroboros/logs.h> -#include <ouroboros/dev.h> #include <ouroboros/ipcp-dev.h> #include <ouroboros/time_utils.h> #include <ouroboros/irm.h> @@ -33,11 +32,10 @@ #include <ouroboros/errno.h> #include "addr_auth.h" -#include "ae.h" +#include "connmgr.h" #include "dir.h" #include "enroll.h" #include "fmgr.h" -#include "frct.h" #include "ipcp.h" #include "ribconfig.h" #include "ribmgr.h" @@ -45,16 +43,11 @@ #include <stdbool.h> #include <signal.h> #include <stdlib.h> -#include <pthread.h> #include <string.h> #include <assert.h> #include <inttypes.h> -#define THIS_TYPE IPCP_NORMAL - -struct { - pthread_t acceptor; -} normal; +#define THIS_TYPE IPCP_NORMAL void ipcp_sig_handler(int sig, siginfo_t * info, @@ -82,53 +75,6 @@ void ipcp_sig_handler(int sig, } } -static void * flow_acceptor(void * o) -{ - int fd; - qosspec_t qs; - /* FIXME: Remove once correct AE is known. */ - char * ae_name = ENROLL_AE; - - (void) o; - - while (true) { - pthread_rwlock_rdlock(&ipcpi.state_lock); - - if (ipcp_get_state() != IPCP_OPERATIONAL) { - pthread_rwlock_unlock(&ipcpi.state_lock); - log_info("Shutting down flow acceptor."); - return 0; - } - - pthread_rwlock_unlock(&ipcpi.state_lock); - - fd = flow_accept(&qs); - if (fd < 0) { - if (fd != -EIRMD) - log_warn("Flow accept failed: %d", fd); - continue; - } - - /* FIXME: Perform CACEP at this point */ - - if (strcmp(ae_name, ENROLL_AE) == 0) { - enroll_handle(fd); - } else if (strcmp(ae_name, MGMT_AE) == 0) { - ribmgr_flow_arr(fd, qs); - } else if (strcmp(ae_name, DT_AE) == 0) { - fmgr_nm1_flow_arr(fd, qs); - } else { - log_dbg("Flow allocation request for unknown AE %s.", - ae_name); - if (flow_alloc_resp(fd, -1)) - log_warn("Failed to reply to flow allocation."); - flow_dealloc(fd); - } - } - - return (void *) 0; -} - /* * Boots the IPCP off information in the rib. * Common function after bootstrap or enroll. @@ -153,15 +99,21 @@ static int boot_components(void) } if (rib_add(MEMBERS_PATH, ipcpi.name)) { - log_warn("Failed to add name to " MEMBERS_PATH); + log_err("Failed to add name to " MEMBERS_PATH); return -1; } log_dbg("Starting components."); + if (connmgr_init()) { + log_err("Failed to init ap connection manager"); + return -1; + } + if (rib_read(BOOT_PATH "/addr_auth/type", &pa, sizeof(pa)) != sizeof(pa)) { log_err("Failed to read policy for address authority."); + connmgr_fini(); return -1; } @@ -170,20 +122,22 @@ static int boot_components(void) return -1; } - ipcpi.address = addr_auth_address(); - if (ipcpi.address == 0) { + ipcpi.dt_addr = addr_auth_address(); + if (ipcpi.dt_addr == 0) { log_err("Failed to get a valid address."); addr_auth_fini(); + connmgr_fini(); return -1; } - log_dbg("IPCP got address %" PRIu64 ".", ipcpi.address); + log_dbg("IPCP got address %" PRIu64 ".", ipcpi.dt_addr); log_dbg("Starting ribmgr."); if (ribmgr_init()) { log_err("Failed to initialize RIB manager."); addr_auth_fini(); + connmgr_fini(); return -1; } @@ -191,6 +145,7 @@ static int boot_components(void) log_err("Failed to initialize directory."); ribmgr_fini(); addr_auth_fini(); + connmgr_fini(); return -1; } @@ -200,6 +155,7 @@ static int boot_components(void) dir_fini(); ribmgr_fini(); addr_auth_fini(); + connmgr_fini(); log_err("Failed to start flow manager."); return -1; } @@ -209,19 +165,21 @@ static int boot_components(void) dir_fini(); ribmgr_fini(); addr_auth_fini(); + connmgr_fini(); log_err("Failed to initialize FRCT."); return -1; } ipcp_set_state(IPCP_OPERATIONAL); - if (pthread_create(&normal.acceptor, NULL, flow_acceptor, NULL)) { + if (connmgr_start()) { ipcp_set_state(IPCP_INIT); fmgr_fini(); dir_fini(); ribmgr_fini(); addr_auth_fini(); - log_err("Failed to create acceptor thread."); + connmgr_fini(); + log_err("Failed to start AP connection manager."); return -1; } @@ -230,8 +188,7 @@ static int boot_components(void) void shutdown_components(void) { - pthread_cancel(normal.acceptor); - pthread_join(normal.acceptor, NULL); + connmgr_stop(); frct_fini(); @@ -242,6 +199,8 @@ void shutdown_components(void) ribmgr_fini(); addr_auth_fini(); + + connmgr_fini(); } static int normal_ipcp_enroll(char * dst_name) @@ -410,9 +369,9 @@ static struct ipcp_ops normal_ops = { .ipcp_name_reg = dir_name_reg, .ipcp_name_unreg = dir_name_unreg, .ipcp_name_query = dir_name_query, - .ipcp_flow_alloc = NULL, /* fmgr_np1_alloc, */ - .ipcp_flow_alloc_resp = NULL, /* fmgr_np1_alloc_resp, */ - .ipcp_flow_dealloc = NULL, /* fmgr_np1_dealloc */ + .ipcp_flow_alloc = fmgr_np1_alloc, + .ipcp_flow_alloc_resp = fmgr_np1_alloc_resp, + .ipcp_flow_dealloc = fmgr_np1_dealloc }; int main(int argc, diff --git a/src/ipcpd/normal/pol/complete.c b/src/ipcpd/normal/pol/complete.c index 68f43e81..daf8c9bf 100644 --- a/src/ipcpd/normal/pol/complete.c +++ b/src/ipcpd/normal/pol/complete.c @@ -38,7 +38,7 @@ struct neighbor { struct list_head next; - char * neighbor; + uint64_t neighbor; }; struct complete { @@ -135,7 +135,6 @@ void complete_destroy(void * o) list_for_each_safe(p, n, &complete->neighbors) { struct neighbor * e = list_entry(p, struct neighbor, next); list_del(&e->next); - free(e->neighbor); free(e); } @@ -168,7 +167,7 @@ int complete_accept_flow(void * o, list_for_each(pos, &complete->neighbors) { struct neighbor * e = list_entry(pos, struct neighbor, next); /* FIXME: figure out union type and check name or address */ - if (strcmp(e->neighbor, info->ae.name) == 0) { + if (e->neighbor == info->addr) { pthread_mutex_unlock(&complete->neighbors_lock); return -1; } @@ -186,13 +185,7 @@ int complete_accept_flow(void * o, list_head_init(&n->next); - /* FIXME: figure out union type and check name or address */ - n->neighbor = strdup(info->ae.name); - if (n->neighbor == NULL) { - pthread_mutex_unlock(&complete->neighbors_lock); - free(n); - return -1; - } + n->neighbor = info->addr; list_add(&n->next, &complete->neighbors); |