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-rw-r--r--package/tapi_sip/src/Makefile21
-rw-r--r--package/tapi_sip/src/agent.h41
-rw-r--r--package/tapi_sip/src/contact.c162
-rw-r--r--package/tapi_sip/src/contact.h33
-rw-r--r--package/tapi_sip/src/dialdetector.c148
-rw-r--r--package/tapi_sip/src/dialdetector.h49
-rw-r--r--package/tapi_sip/src/list.h601
-rw-r--r--package/tapi_sip/src/session.c84
-rw-r--r--package/tapi_sip/src/session.h14
-rw-r--r--package/tapi_sip/src/sip_agent.h27
-rw-r--r--package/tapi_sip/src/sip_client.c800
-rw-r--r--package/tapi_sip/src/sip_client.h61
-rw-r--r--package/tapi_sip/src/stun.c243
-rw-r--r--package/tapi_sip/src/stun.h12
-rw-r--r--package/tapi_sip/src/tapi_agent.c105
-rw-r--r--package/tapi_sip/src/tapi_agent.h37
-rw-r--r--package/tapi_sip/src/tapi_sip.c179
17 files changed, 2617 insertions, 0 deletions
diff --git a/package/tapi_sip/src/Makefile b/package/tapi_sip/src/Makefile
new file mode 100644
index 0000000..5601370
--- /dev/null
+++ b/package/tapi_sip/src/Makefile
@@ -0,0 +1,21 @@
+ifndef CFLAGS
+CFLAGS = -O2 -g -I ../src
+endif
+
+CFLAGS += -Werror -Wall -std=gnu99
+
+PJ_CFLAGS ?= `pkg-config libpjproject --cflags`
+PJ_LDFLAGS ?= `pkg-config libpjproject --libs`
+
+CFLAGS += $(PJ_CFLAGS)
+LDFLAGS += $(PJ_LDFLAGS)
+
+FPIC=-fPIC
+
+all: tapi-sip
+
+%.o: %.c
+ $(CC) -c -o $@ $^ $(CFLAGS)
+
+tapi-sip: contact.o session.o tapi_agent.o tapi_sip.o sip_client.o stun.o dialdetector.o
+ $(CC) -o $@ $^ -ltapi -luci $(LDFLAGS)
diff --git a/package/tapi_sip/src/agent.h b/package/tapi_sip/src/agent.h
new file mode 100644
index 0000000..7959941
--- /dev/null
+++ b/package/tapi_sip/src/agent.h
@@ -0,0 +1,41 @@
+#ifndef __AGENT_H__
+#define __AGENT_H__
+
+#include "agent.h"
+
+struct session;
+struct agent;
+
+struct agent_ops {
+ int (*invite)(struct agent *, struct session *);
+ int (*accept)(struct agent *, struct session *);
+ int (*hangup)(struct agent *, struct session *);
+
+ int (*get_endpoint)(struct agent *, struct session *);
+};
+
+struct agent {
+ const struct agent_ops *ops;
+};
+
+static inline int agent_invite(struct agent *agent, struct session *session)
+{
+ return agent->ops->invite(agent, session);
+}
+
+static inline int agent_accept(struct agent *agent, struct session *session)
+{
+ return agent->ops->accept(agent, session);
+}
+
+static inline int agent_hangup(struct agent *agent, struct session *session)
+{
+ return agent->ops->hangup(agent, session);
+}
+
+static inline int agent_get_endpoint(struct agent *agent, struct session *session)
+{
+ return agent->ops->get_endpoint(agent, session);
+}
+
+#endif
diff --git a/package/tapi_sip/src/contact.c b/package/tapi_sip/src/contact.c
new file mode 100644
index 0000000..eeb38b4
--- /dev/null
+++ b/package/tapi_sip/src/contact.c
@@ -0,0 +1,162 @@
+#include <malloc.h>
+#include <string.h>
+
+#include <uci.h>
+#include <ucimap.h>
+
+#include "list.h"
+#include "contact.h"
+
+static struct uci_context *ctx;
+static struct uci_package *pkg;
+static struct list_head contact_list;
+static struct list_head account_list;
+
+static int contact_init(struct uci_map *map, void *section,
+ struct uci_section *s)
+{
+ struct contact *p = section;
+ p->name = strdup(s->e.name);
+ return 0;
+}
+
+static int contact_add(struct uci_map *map, void *section)
+{
+ struct contact *c = section;
+ printf("add contact: %s\n", c->name);
+ list_add_tail(&c->head, &contact_list);
+ return 0;
+}
+
+static struct uci_optmap contact_uci_map[] = {
+ {
+ UCIMAP_OPTION(struct contact, identifier),
+ .type = UCIMAP_STRING,
+ .name = "identifier",
+ },
+ {
+ UCIMAP_OPTION(struct contact, number),
+ .type = UCIMAP_STRING,
+ .name = "number",
+ },
+};
+
+static struct uci_sectionmap contact_sectionmap = {
+ UCIMAP_SECTION(struct contact, map),
+ .type = "contact",
+ .init = contact_init,
+ .add = contact_add,
+ .options = contact_uci_map,
+ .n_options = ARRAY_SIZE(contact_uci_map),
+ .options_size = sizeof(struct uci_optmap),
+};
+
+static int account_init(struct uci_map *map, void *section,
+ struct uci_section *s)
+{
+ struct account *a = section;
+ a->name = strdup(s->e.name);
+ return 0;
+}
+
+static int account_add(struct uci_map *map, void *section)
+{
+ struct account *a = section;
+ list_add_tail(&a->head, &account_list);
+ return 0;
+}
+
+static struct uci_optmap account_uci_map[] = {
+ {
+ UCIMAP_OPTION(struct account, realm),
+ .type = UCIMAP_STRING,
+ .name = "realm",
+ },
+ {
+ UCIMAP_OPTION(struct account, username),
+ .type = UCIMAP_STRING,
+ .name = "username",
+ },
+ {
+ UCIMAP_OPTION(struct account, sip_port),
+ .type = UCIMAP_INT,
+ .name = "sip_port",
+ },
+ {
+ UCIMAP_OPTION(struct account, password),
+ .type = UCIMAP_STRING,
+ .name = "password",
+ },
+ {
+ UCIMAP_OPTION(struct account, stun_host),
+ .type = UCIMAP_STRING,
+ .name = "stun_host",
+ },
+ {
+ UCIMAP_OPTION(struct account, stun_port),
+ .type = UCIMAP_INT,
+ .name = "stun_port",
+ },
+};
+
+static struct uci_sectionmap account_sectionmap = {
+ UCIMAP_SECTION(struct account, map),
+ .type = "account",
+ .init = account_init,
+ .add = account_add,
+ .options = account_uci_map,
+ .n_options = ARRAY_SIZE(account_uci_map),
+ .options_size = sizeof(struct uci_optmap),
+};
+
+static struct uci_sectionmap *network_smap[] = {
+ &contact_sectionmap,
+ &account_sectionmap,
+};
+
+static struct uci_map contact_map = {
+ .sections = network_smap,
+ .n_sections = ARRAY_SIZE(network_smap),
+};
+
+int contacts_init(void)
+{
+ int ret;
+
+ INIT_LIST_HEAD(&contact_list);
+ INIT_LIST_HEAD(&account_list);
+ ctx = uci_alloc_context();
+
+ ucimap_init(&contact_map);
+ ret = uci_load(ctx, "telephony", &pkg);
+ if (ret)
+ return ret;
+
+ ucimap_parse(&contact_map, pkg);
+
+ return 0;
+}
+
+void contacts_free(void)
+{
+}
+
+struct contact *contact_get(const char *number)
+{
+ struct contact *contact;
+ list_for_each_entry(contact, &contact_list, head)
+ {
+ if (strcmp(contact->number, number) == 0)
+ return contact;
+ }
+
+ return NULL;
+}
+
+struct account *get_account(void)
+{
+ if (list_empty(&account_list))
+ return NULL;
+
+ return list_first_entry(&account_list, struct account, head);
+}
diff --git a/package/tapi_sip/src/contact.h b/package/tapi_sip/src/contact.h
new file mode 100644
index 0000000..1fb0037
--- /dev/null
+++ b/package/tapi_sip/src/contact.h
@@ -0,0 +1,33 @@
+#ifndef __CONTACT_H__
+#define __CONTACT_H__
+
+#include <ucimap.h>
+
+struct account {
+ struct ucimap_section_data map;
+ const char *name;
+ char *realm;
+ char *username;
+ char *password;
+ int sip_port;
+ char *stun_host;
+ int stun_port;
+ struct list_head head;
+};
+
+struct contact {
+ struct ucimap_section_data map;
+ const char *name;
+ const char *identifier;
+ const char *number;
+
+ struct list_head head;
+};
+
+int contacts_init(void);
+void contacts_free(void);
+struct contact *contact_get(const char *number);
+
+struct account *get_account(void);
+
+#endif
diff --git a/package/tapi_sip/src/dialdetector.c b/package/tapi_sip/src/dialdetector.c
new file mode 100644
index 0000000..277b029
--- /dev/null
+++ b/package/tapi_sip/src/dialdetector.c
@@ -0,0 +1,148 @@
+#include <linux/input.h>
+#include <sys/epoll.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <events.h>
+#include "timerfd.h"
+
+#include "tapi-port.h"
+#include "dialdetector.h"
+
+static const struct itimerspec dialdetector_timeout = {
+ .it_value.tv_sec = 3,
+};
+
+static const struct itimerspec dialdetector_impulse_timeout = {
+ .it_value.tv_nsec = 200000000,
+};
+
+static void dialdetector_note_digit(struct dialdetector *d, unsigned char digit)
+{
+ printf("note digit: %d\n", d->num_digits);
+
+ d->digits[d->num_digits] = digit;
+ ++d->num_digits;
+
+ timerfd_settime(d->timer_fd, 0, &dialdetector_timeout, NULL);
+ d->dial_state = DIALDETECTOR_DIAL_WAIT_TIMEOUT;
+}
+
+static void dialdetector_reset(struct dialdetector *d)
+{
+ d->num_digits = 0;
+ d->impulses = 0;
+ d->dial_state = DIALDETECTOR_DIAL_WAIT;
+ d->port_state = DIALDETECTOR_PORT_INACTIVE;
+}
+
+static bool dialdetector_timeout_event(int events, void *data)
+{
+ char num[20];
+ struct dialdetector *dialdetector = data;
+ int i;
+ uint64_t tmp;
+
+ read(dialdetector->timer_fd, &tmp, sizeof(tmp));
+
+ for (i = 0; i < dialdetector->num_digits; ++i) {
+ num[i] = '0' + dialdetector->digits[i];
+ }
+ num[i] = '\0';
+
+ dialdetector->dial_callback(dialdetector->port, dialdetector->num_digits,
+ dialdetector->digits);
+
+ dialdetector_reset(dialdetector);
+
+ return true;
+}
+
+static bool dialdetector_impulse_timeout_cb(int events, void *data)
+{
+ struct dialdetector *d = data;
+ uint64_t tmp;
+
+ read(d->impulse_timer_fd, &tmp, sizeof(tmp));
+
+ if (d->port_state == DIALDETECTOR_PORT_ACTIVE_DOWN) {
+ d->port_state = DIALDETECTOR_PORT_INACTIVE;
+ } else {
+ printf("impulse: %d\n", d->impulses);
+ if (d->impulses > 0)
+ dialdetector_note_digit(d, d->impulses < 10 ? d->impulses : 0);
+ d->impulses = 0;
+ }
+
+ return true;
+}
+
+static void dialdetector_port_event(struct tapi_port *port,
+ struct tapi_event *event, void *data)
+{
+ struct dialdetector *d = data;
+
+ printf("port event: %d %d\n", d->port_state, event->hook.on);
+
+ switch (d->port_state) {
+ case DIALDETECTOR_PORT_INACTIVE:
+ if (event->type == TAPI_EVENT_TYPE_HOOK && event->hook.on == false)
+ d->port_state = DIALDETECTOR_PORT_ACTIVE;
+ break;
+ case DIALDETECTOR_PORT_ACTIVE:
+ switch (event->type) {
+ case TAPI_EVENT_TYPE_HOOK:
+ if (event->hook.on == true) {
+ d->port_state = DIALDETECTOR_PORT_ACTIVE_DOWN;
+ timerfd_settime(d->impulse_timer_fd, 0, &dialdetector_impulse_timeout, NULL);
+ }
+ break;
+ case TAPI_EVENT_TYPE_DTMF:
+ dialdetector_note_digit(d, event->dtmf.code);
+ break;
+ }
+ break;
+ case DIALDETECTOR_PORT_ACTIVE_DOWN:
+ if (event->type == TAPI_EVENT_TYPE_HOOK && event->hook.on == false) {
+ timerfd_settime(d->timer_fd, 0, &dialdetector_timeout, NULL);
+ ++d->impulses;
+ d->port_state = DIALDETECTOR_PORT_ACTIVE;
+ }
+ break;
+ }
+}
+
+struct dialdetector *dialdetector_alloc(struct tapi_port *port)
+{
+ struct dialdetector *dialdetector;
+ dialdetector = malloc(sizeof(*dialdetector));
+
+ dialdetector->timer_fd = timerfd_create(CLOCK_MONOTONIC, 0);
+ dialdetector->impulse_timer_fd = timerfd_create(CLOCK_MONOTONIC, 0);
+ dialdetector->port = port;
+ dialdetector->num_digits = 0;
+ dialdetector->impulses = 0;
+ dialdetector->dial_state = DIALDETECTOR_DIAL_WAIT;
+ dialdetector->port_state = DIALDETECTOR_PORT_INACTIVE;
+
+ dialdetector->timeout_cb.callback = dialdetector_timeout_event;
+ dialdetector->timeout_cb.data = dialdetector;
+ dialdetector->impulse_cb.callback = dialdetector_impulse_timeout_cb;
+ dialdetector->impulse_cb.data = dialdetector;
+
+ dialdetector->port_listener.callback = dialdetector_port_event;
+ dialdetector->port_listener.data = dialdetector;
+
+ tapi_port_register_event(port, &dialdetector->port_listener);
+
+ event_register(dialdetector->impulse_timer_fd, EPOLLIN,
+ &dialdetector->impulse_cb);
+ event_register(dialdetector->timer_fd, EPOLLIN, &dialdetector->timeout_cb);
+
+ return dialdetector;
+}
diff --git a/package/tapi_sip/src/dialdetector.h b/package/tapi_sip/src/dialdetector.h
new file mode 100644
index 0000000..c3737c3
--- /dev/null
+++ b/package/tapi_sip/src/dialdetector.h
@@ -0,0 +1,49 @@
+#include <linux/input.h>
+#include <sys/epoll.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "events.h"
+#include "timerfd.h"
+
+#include "tapi-port.h"
+
+enum dialdetector_dial_state {
+ DIALDETECTOR_DIAL_WAIT = 1,
+ DIALDETECTOR_DIAL_WAIT_TIMEOUT = 2,
+};
+
+enum dialdetector_port_state {
+ DIALDETECTOR_PORT_INACTIVE = 0,
+ DIALDETECTOR_PORT_ACTIVE = 1,
+ DIALDETECTOR_PORT_ACTIVE_DOWN = 2,
+};
+
+struct dialdetector {
+ enum dialdetector_dial_state dial_state;
+ enum dialdetector_port_state port_state;
+
+ struct tapi_port *port;
+ int timer_fd;
+ int impulse_timer_fd;
+
+ struct event_callback timeout_cb;
+ struct event_callback impulse_cb;
+ struct tapi_port_event_listener port_listener;
+
+ size_t num_digits;
+ unsigned char digits[20];
+
+ unsigned int impulses;
+
+ void (*dial_callback)(struct tapi_port *port, size_t num_digits, const unsigned char *digits);
+};
+
+
+struct tapi_port;
+
+struct dialdetector *dialdetector_alloc(struct tapi_port *port);
diff --git a/package/tapi_sip/src/list.h b/package/tapi_sip/src/list.h
new file mode 100644
index 0000000..2959a06
--- /dev/null
+++ b/package/tapi_sip/src/list.h
@@ -0,0 +1,601 @@
+#ifndef _LINUX_LIST_H
+#define _LINUX_LIST_H
+
+#include <stddef.h>
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr: the pointer to the member.
+ * @type: the type of the container struct this is embedded in.
+ * @member: the name of the member within the struct.
+ *
+ */
+#ifndef container_of
+#define container_of(ptr, type, member) ( \
+ (type *)( (char *)ptr - offsetof(type,member) ))
+#endif
+
+
+/*
+ * Simple doubly linked list implementation.
+ *
+ * Some of the internal functions ("__xxx") are useful when
+ * manipulating whole lists rather than single entries, as
+ * sometimes we already know the next/prev entries and we can
+ * generate better code by using them directly rather than
+ * using the generic single-entry routines.
+ */
+
+struct list_head {
+ struct list_head *next, *prev;
+};
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+ struct list_head name = LIST_HEAD_INIT(name)
+
+static inline void INIT_LIST_HEAD(struct list_head *list)
+{
+ list->next = list;
+ list->prev = list;
+}
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add(struct list_head *new,
+ struct list_head *prev,
+ struct list_head *next)
+{
+ next->prev = new;
+ new->next = next;
+ new->prev = prev;
+ prev->next = new;
+}
+
+/**
+ * list_add - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it after
+ *
+ * Insert a new entry after the specified head.
+ * This is good for implementing stacks.
+ */
+static inline void list_add(struct list_head *new, struct list_head *head)
+{
+ __list_add(new, head, head->next);
+}
+
+
+/**
+ * list_add_tail - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ */
+static inline void list_add_tail(struct list_head *new, struct list_head *head)
+{
+ __list_add(new, head->prev, head);
+}
+
+
+/*
+ * Delete a list entry by making the prev/next entries
+ * point to each other.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_del(struct list_head * prev, struct list_head * next)
+{
+ next->prev = prev;
+ prev->next = next;
+}
+
+/**
+ * list_del - deletes entry from list.
+ * @entry: the element to delete from the list.
+ * Note: list_empty() on entry does not return true after this, the entry is
+ * in an undefined state.
+ */
+static inline void list_del(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+ entry->next = NULL;
+ entry->prev = NULL;
+}
+
+/**
+ * list_replace - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * If @old was empty, it will be overwritten.
+ */
+static inline void list_replace(struct list_head *old,
+ struct list_head *new)
+{
+ new->next = old->next;
+ new->next->prev = new;
+ new->prev = old->prev;
+ new->prev->next = new;
+}
+
+static inline void list_replace_init(struct list_head *old,
+ struct list_head *new)
+{
+ list_replace(old, new);
+ INIT_LIST_HEAD(old);
+}
+
+/**
+ * list_del_init - deletes entry from list and reinitialize it.
+ * @entry: the element to delete from the list.
+ */
+static inline void list_del_init(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+ INIT_LIST_HEAD(entry);
+}
+
+/**
+ * list_move - delete from one list and add as another's head
+ * @list: the entry to move
+ * @head: the head that will precede our entry
+ */
+static inline void list_move(struct list_head *list, struct list_head *head)
+{
+ __list_del(list->prev, list->next);
+ list_add(list, head);
+}
+
+/**
+ * list_move_tail - delete from one list and add as another's tail
+ * @list: the entry to move
+ * @head: the head that will follow our entry
+ */
+static inline void list_move_tail(struct list_head *list,
+ struct list_head *head)
+{
+ __list_del(list->prev, list->next);
+ list_add_tail(list, head);
+}
+
+/**
+ * list_is_last - tests whether @list is the last entry in list @head
+ * @list: the entry to test
+ * @head: the head of the list
+ */
+static inline int list_is_last(const struct list_head *list,
+ const struct list_head *head)
+{
+ return list->next == head;
+}
+
+/**
+ * list_empty - tests whether a list is empty
+ * @head: the list to test.
+ */
+static inline int list_empty(const struct list_head *head)
+{
+ return head->next == head;
+}
+
+/**
+ * list_empty_careful - tests whether a list is empty and not being modified
+ * @head: the list to test
+ *
+ * Description:
+ * tests whether a list is empty _and_ checks that no other CPU might be
+ * in the process of modifying either member (next or prev)
+ *
+ * NOTE: using list_empty_careful() without synchronization
+ * can only be safe if the only activity that can happen
+ * to the list entry is list_del_init(). Eg. it cannot be used
+ * if another CPU could re-list_add() it.
+ */
+static inline int list_empty_careful(const struct list_head *head)
+{
+ struct list_head *next = head->next;
+ return (next == head) && (next == head->prev);
+}
+
+static inline void __list_splice(struct list_head *list,
+ struct list_head *head)
+{
+ struct list_head *first = list->next;
+ struct list_head *last = list->prev;
+ struct list_head *at = head->next;
+
+ first->prev = head;
+ head->next = first;
+
+ last->next = at;
+ at->prev = last;
+}
+
+/**
+ * list_splice - join two lists
+ * @list: the new list to add.
+ * @head: the place to add it in the first list.
+ */
+static inline void list_splice(struct list_head *list, struct list_head *head)
+{
+ if (!list_empty(list))
+ __list_splice(list, head);
+}
+
+/**
+ * list_splice_init - join two lists and reinitialise the emptied list.
+ * @list: the new list to add.
+ * @head: the place to add it in the first list.
+ *
+ * The list at @list is reinitialised
+ */
+static inline void list_splice_init(struct list_head *list,
+ struct list_head *head)
+{
+ if (!list_empty(list)) {
+ __list_splice(list, head);
+ INIT_LIST_HEAD(list);
+ }
+}
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr: the &struct list_head pointer.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+ container_of(ptr, type, member)
+
+/**
+ * list_first_entry - get the first element from a list
+ * @ptr: the list head to take the element from.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Note, that list is expected to be not empty.
+ */
+#define list_first_entry(ptr, type, member) \
+ list_entry((ptr)->next, type, member)
+
+/**
+ * list_for_each - iterate over a list
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @head: the head for your list.
+ */
+#define list_for_each(pos, head) \
+ for (pos = (head)->next; pos != (head); \
+ pos = pos->next)
+
+/**
+ * __list_for_each - iterate over a list
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @head: the head for your list.
+ *
+ * This variant differs from list_for_each() in that it's the
+ * simplest possible list iteration code, no prefetching is done.
+ * Use this for code that knows the list to be very short (empty
+ * or 1 entry) most of the time.
+ */
+#define __list_for_each(pos, head) \
+ for (pos = (head)->next; pos != (head); pos = pos->next)
+
+/**
+ * list_for_each_prev - iterate over a list backwards
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @head: the head for your list.
+ */
+#define list_for_each_prev(pos, head) \
+ for (pos = (head)->prev; pos != (head); \
+ pos = pos->prev)
+
+/**
+ * list_for_each_safe - iterate over a list safe against removal of list entry
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @n: another &struct list_head to use as temporary storage
+ * @head: the head for your list.
+ */
+#define list_for_each_safe(pos, n, head) \
+ for (pos = (head)->next, n = pos->next; pos != (head); \
+ pos = n, n = pos->next)
+
+/**
+ * list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @n: another &struct list_head to use as temporary storage
+ * @head: the head for your list.
+ */
+#define list_for_each_prev_safe(pos, n, head) \
+ for (pos = (head)->prev, n = pos->prev; \
+ pos != (head); \
+ pos = n, n = pos->prev)
+
+/**
+ * list_for_each_entry - iterate over list of given type
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_for_each_entry(pos, head, member) \
+ for (pos = list_entry((head)->next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_reverse - iterate backwards over list of given type.
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_for_each_entry_reverse(pos, head, member) \
+ for (pos = list_entry((head)->prev, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = list_entry(pos->member.prev, typeof(*pos), member))
+
+/**
+ * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
+ * @pos: the type * to use as a start point
+ * @head: the head of the list
+ * @member: the name of the list_struct within the struct.
+ *
+ * Prepares a pos entry for use as a start point in list_for_each_entry_continue().
+ */
+#define list_prepare_entry(pos, head, member) \
+ ((pos) ? : list_entry(head, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_continue - continue iteration over list of given type
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Continue to iterate over list of given type, continuing after
+ * the current position.
+ */
+#define list_for_each_entry_continue(pos, head, member) \
+ for (pos = list_entry(pos->member.next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_continue_reverse - iterate backwards from the given point
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Start to iterate over list of given type backwards, continuing after
+ * the current position.
+ */
+#define list_for_each_entry_continue_reverse(pos, head, member) \
+ for (pos = list_entry(pos->member.prev, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = list_entry(pos->member.prev, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_from - iterate over list of given type from the current point
+ * @pos: the type * to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type, continuing from current position.
+ */
+#define list_for_each_entry_from(pos, head, member) \
+ for (; &pos->member != (head); \
+ pos = list_entry(pos->member.next, typeof(*pos), member))
+
+/**
+ * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
+ * @pos: the type * to use as a loop cursor.
+ * @n: another type * to use as temporary storage
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_for_each_entry_safe(pos, n, head, member) \
+ for (pos = list_entry((head)->next, typeof(*pos), member), \
+ n = list_entry(pos->member.next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = n, n = list_entry(n->member.next, typeof(*n), member))
+
+/**
+ * list_for_each_entry_safe_continue
+ * @pos: the type * to use as a loop cursor.
+ * @n: another type * to use as temporary storage
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type, continuing after current point,
+ * safe against removal of list entry.
+ */
+#define list_for_each_entry_safe_continue(pos, n, head, member) \
+ for (pos = list_entry(pos->member.next, typeof(*pos), member), \
+ n = list_entry(pos->member.next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = n, n = list_entry(n->member.next, typeof(*n), member))
+
+/**
+ * list_for_each_entry_safe_from
+ * @pos: the type * to use as a loop cursor.
+ * @n: another type * to use as temporary storage
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Iterate over list of given type from current point, safe against
+ * removal of list entry.
+ */
+#define list_for_each_entry_safe_from(pos, n, head, member) \
+ for (n = list_entry(pos->member.next, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = n, n = list_entry(n->member.next, typeof(*n), member))
+
+/**
+ * list_for_each_entry_safe_reverse
+ * @pos: the type * to use as a loop cursor.
+ * @n: another type * to use as temporary storage
+ * @head: the head for your list.
+ * @member: the name of the list_struct within the struct.
+ *
+ * Iterate backwards over list of given type, safe against removal
+ * of list entry.
+ */
+#define list_for_each_entry_safe_reverse(pos, n, head, member) \
+ for (pos = list_entry((head)->prev, typeof(*pos), member), \
+ n = list_entry(pos->member.prev, typeof(*pos), member); \
+ &pos->member != (head); \
+ pos = n, n = list_entry(n->member.prev, typeof(*n), member))
+
+/*
+ * Double linked lists with a single pointer list head.
+ * Mostly useful for hash tables where the two pointer list head is
+ * too wasteful.
+ * You lose the ability to access the tail in O(1).
+ */
+
+struct hlist_head {
+ struct hlist_node *first;
+};
+
+struct hlist_node {
+ struct hlist_node *next, **pprev;
+};
+
+#define HLIST_HEAD_INIT { .first = NULL }
+#define HLIST_HEAD(name) struct hlist_head name = { .first = NULL }
+#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
+static inline void INIT_HLIST_NODE(struct hlist_node *h)
+{
+ h->next = NULL;
+ h->pprev = NULL;
+}
+
+static inline int hlist_unhashed(const struct hlist_node *h)
+{
+ return !h->pprev;
+}
+
+static inline int hlist_empty(const struct hlist_head *h)
+{
+ return !h->first;
+}
+
+static inline void __hlist_del(struct hlist_node *n)
+{
+ struct hlist_node *next = n->next;
+ struct hlist_node **pprev = n->pprev;
+ *pprev = next;
+ if (next)
+ next->pprev = pprev;
+}
+
+static inline void hlist_del(struct hlist_node *n)
+{
+ __hlist_del(n);
+ n->next = NULL;
+ n->pprev = NULL;
+}
+
+static inline void hlist_del_init(struct hlist_node *n)
+{
+ if (!hlist_unhashed(n)) {
+ __hlist_del(n);
+ INIT_HLIST_NODE(n);
+ }
+}
+
+
+static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
+{
+ struct hlist_node *first = h->first;
+ n->next = first;
+ if (first)
+ first->pprev = &n->next;
+ h->first = n;
+ n->pprev = &h->first;
+}
+
+
+/* next must be != NULL */
+static inline void hlist_add_before(struct hlist_node *n,
+ struct hlist_node *next)
+{
+ n->pprev = next->pprev;
+ n->next = next;
+ next->pprev = &n->next;
+ *(n->pprev) = n;
+}
+
+static inline void hlist_add_after(struct hlist_node *n,
+ struct hlist_node *next)
+{
+ next->next = n->next;
+ n->next = next;
+ next->pprev = &n->next;
+
+ if(next->next)
+ next->next->pprev = &next->next;
+}
+
+#define hlist_entry(ptr, type, member) container_of(ptr,type,member)
+
+#define hlist_for_each(pos, head) \
+ for (pos = (head)->first; pos; pos = pos->next)
+
+#define hlist_for_each_safe(pos, n, head) \
+ for (pos = (head)->first; pos; pos = n)
+
+/**
+ * hlist_for_each_entry - iterate over list of given type
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @head: the head for your list.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry(tpos, pos, head, member) \
+ for (pos = (head)->first; pos && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+ pos = pos->next)
+
+/**
+ * hlist_for_each_entry_continue - iterate over a hlist continuing after current point
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_continue(tpos, pos, member) \
+ for (pos = (pos)->next; pos && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+ pos = pos->next)
+
+/**
+ * hlist_for_each_entry_from - iterate over a hlist continuing from current point
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_from(tpos, pos, member) \
+ for (; pos && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+ pos = pos->next)
+
+/**
+ * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
+ * @tpos: the type * to use as a loop cursor.
+ * @pos: the &struct hlist_node to use as a loop cursor.
+ * @n: another &struct hlist_node to use as temporary storage
+ * @head: the head for your list.
+ * @member: the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_safe(tpos, pos, n, head, member) \
+ for (pos = (head)->first; \
+ pos && ({ n = pos->next; 1; }) && \
+ ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
+ pos = n)
+
+#endif
diff --git a/package/tapi_sip/src/session.c b/package/tapi_sip/src/session.c
new file mode 100644
index 0000000..97f6f06
--- /dev/null
+++ b/package/tapi_sip/src/session.c
@@ -0,0 +1,84 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "agent.h"
+#include "session.h"
+
+#include <tapi-device.h>
+
+
+struct session
+{
+ struct agent *agents[2];
+
+ struct tapi_device *tdev;
+
+ void (*release)(struct session *);
+
+ int link;
+};
+
+struct session *session_alloc(struct tapi_device *dev, struct agent *caller,
+ struct agent *callee, void (*release)(struct session *))
+{
+ struct session *session;
+ int ret;
+
+ session = malloc(sizeof(*session));
+
+ session->tdev = dev;
+
+ session->agents[0] = caller;
+ session->agents[1] = callee;
+
+ ret = agent_invite(callee, session);
+ if (ret < 0) {
+ session_hangup(session, callee);
+ free(session);
+ return NULL;
+ }
+
+ session->release = release;
+
+ return session;
+}
+
+void session_accept(struct session *session, struct agent *agent)
+{
+ int ep[2];
+
+ printf("session_accept: %p %p\n", session, agent);
+ printf("session agents: %p %p\n", session->agents[0], session->agents[1]);
+ printf("session tdev: %p\n", session->tdev);
+
+ agent_accept(session->agents[0], session);
+
+ ep[0] = agent_get_endpoint(session->agents[0], session);
+ ep[1] = agent_get_endpoint(session->agents[1], session);
+ session->link = tapi_link_alloc(session->tdev, ep[0], ep[1]);
+
+ printf("eps: %d %d\n", ep[0], ep[1]);
+
+ tapi_link_enable(session->tdev, session->link);
+
+ tapi_sync(session->tdev);
+}
+
+void session_hangup(struct session *session, struct agent *agent)
+{
+ struct agent *other_agent;
+
+ if (session->agents[0] == agent)
+ other_agent = session->agents[1];
+ else
+ other_agent = session->agents[0];
+
+ agent_hangup(other_agent, session);
+
+ tapi_link_disable(session->tdev, session->link);
+ tapi_link_free(session->tdev, session->link);
+ tapi_sync(session->tdev);
+
+ if (session->release)
+ session->release(session);
+}
diff --git a/package/tapi_sip/src/session.h b/package/tapi_sip/src/session.h
new file mode 100644
index 0000000..7403785
--- /dev/null
+++ b/package/tapi_sip/src/session.h
@@ -0,0 +1,14 @@
+#ifndef __SESSION_H__
+#define __SESSION_H__
+
+struct agent;
+struct session;
+struct tapi_device;
+
+struct session *session_alloc(struct tapi_device *, struct agent *caller,
+ struct agent *callee, void (*release)(struct session *));
+void session_hangup(struct session *, struct agent *);
+void session_accept(struct session *, struct agent *);
+void session_free(struct session *);
+
+#endif
diff --git a/package/tapi_sip/src/sip_agent.h b/package/tapi_sip/src/sip_agent.h
new file mode 100644
index 0000000..7f711da
--- /dev/null
+++ b/package/tapi_sip/src/sip_agent.h
@@ -0,0 +1,27 @@
+#ifndef __SIP_AGENT_H__
+#define __SIP_AGENT_H__
+
+#include "agent.h"
+#include <events.h>
+
+struct sip_agent {
+ struct sip_client *client;
+ const char *identifier;
+
+ struct tapi_stream *stream;
+ struct session *session;
+
+ struct pjsip_inv_session *inv;
+
+ int rtp_sockfd;
+
+ struct sockaddr_storage remote_addr;
+ struct sockaddr_storage local_addr;
+
+ struct agent agent;
+
+ struct event_callback rtp_recv_callback;
+ struct event_callback stream_recv_callback;
+};
+
+#endif
diff --git a/package/tapi_sip/src/sip_client.c b/package/tapi_sip/src/sip_client.c
new file mode 100644
index 0000000..0b1e2dd
--- /dev/null
+++ b/package/tapi_sip/src/sip_client.c
@@ -0,0 +1,800 @@
+#include "sip_client.h"
+
+#include <stdint.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <sys/epoll.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+
+#include "stun.h"
+#include "sip_agent.h"
+#include "session.h"
+#include "list.h"
+
+static inline struct sip_agent *agent_to_sip_agent(struct agent *agent)
+{
+ return container_of(agent, struct sip_agent, agent);
+}
+
+static int iface_get_addr(const char *iface, struct sockaddr_storage *addr)
+{
+ int fd;
+ int ret;
+ struct ifreq ifr;
+
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+
+ ifr.ifr_addr.sa_family = AF_INET;
+ strncpy(ifr.ifr_name, iface, IFNAMSIZ-1);
+ ret = ioctl(fd, SIOCGIFADDR, &ifr);
+ if (ret < 0)
+ perror("Failed to get interface address");
+
+ close(fd);
+
+ if (ret == 0)
+ memcpy(addr, &ifr.ifr_addr, sizeof(ifr.ifr_addr));
+
+ return ret;
+}
+
+#if 0
+static bool sockaddr_is_local(struct sockaddr_storage *addr)
+{
+ unsigned long s_addr;
+ bool is_local = false;
+
+ switch (addr->ss_family) {
+ case AF_INET:
+ s_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr;
+ if ((s_addr & 0xff000000) == 0x10000000)
+ is_local = true;
+ else if ((s_addr & 0xfff00000) == 0xac100000)
+ is_local = true;
+ else if ((s_addr & 0xffff0000) == 0xc0a80000)
+ is_local = true;
+ break;
+ default:
+ break;
+ }
+
+ return is_local;
+}
+#endif
+
+static uint16_t sockaddr_get_port(struct sockaddr_storage *addr)
+{
+ uint16_t port;
+
+ switch (addr->ss_family) {
+ case AF_INET:
+ port = ((struct sockaddr_in *)addr)->sin_port;
+ break;
+ case AF_INET6:
+ port = ((struct sockaddr_in6 *)addr)->sin6_port;
+ break;
+ default:
+ port = 0;
+ break;
+ }
+
+ return port;
+}
+
+static void sockaddr_set_port(struct sockaddr_storage *addr, uint16_t port)
+{
+ switch (addr->ss_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)addr)->sin_port = port;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)addr)->sin6_port = port;
+ break;
+ default:
+ break;
+ }
+}
+
+static void *sockaddr_get_addr(struct sockaddr_storage *addr)
+{
+ void *a;
+ switch (addr->ss_family) {
+ case AF_INET:
+ a = &((struct sockaddr_in *)addr)->sin_addr.s_addr;
+ break;
+ case AF_INET6:
+ a = ((struct sockaddr_in6 *)addr)->sin6_addr.s6_addr;
+ break;
+ default:
+ a = NULL;
+ break;
+ }
+
+ return a;
+}
+
+static int sockaddr_to_string(struct sockaddr_storage *addr, char *s, size_t n)
+{
+ return inet_ntop(addr->ss_family, sockaddr_get_addr(addr), s, n) == NULL ? -1 : 0;
+}
+
+static pjsip_module mod_siprtp;
+static struct sip_client *global_client;
+
+/* Creates a datagram socket and binds it to a port in the range of
+ * start_port-end_port */
+static int sip_client_create_socket(struct sip_client *client,
+ struct sockaddr_storage *sockaddr, uint16_t start_port,
+ uint16_t end_port)
+{
+ int sockfd;
+ int ret;
+
+ sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sockfd < 0)
+ return sockfd;
+
+ memcpy(sockaddr, &client->local_addr, sizeof(client->local_addr));
+ do {
+ sockaddr_set_port(sockaddr, start_port);
+ ret = bind(sockfd, (struct sockaddr *)sockaddr, sizeof(*sockaddr));
+ ++start_port;
+ } while (ret == -1 && start_port < end_port);
+
+ if (ret == -1)
+ return -1;
+
+ return sockfd;
+}
+
+static int sip_worker_thread(void *arg)
+{
+ struct sip_client *client = arg;
+
+ while (1) {
+ pj_time_val timeout = {0, 10};
+ pjsip_endpt_handle_events(client->sip_endpt, &timeout);
+ }
+
+ return 0;
+}
+
+static bool sip_agent_stream_recv_callback(int events, void *data)
+{
+ struct sip_agent *agent = data;
+ char buf[512];
+ int len;
+ int ret;
+
+ len = read(agent->stream->fd, buf, 512);
+ if (len < 0)
+ return true;
+
+ ret = sendto(agent->rtp_sockfd, buf, len, 0,
+ (struct sockaddr *)&agent->remote_addr, sizeof(agent->remote_addr));
+
+ if (ret < 0)
+ printf("failed to send rtp data: %d\n", errno);
+
+ return true;
+}
+
+
+static bool sip_agent_rtp_recv_callback(int events, void *data)
+{
+ struct sip_agent *agent = data;
+ char buf[512];
+ int len;
+
+ len = recvfrom(agent->rtp_sockfd, buf, 512, 0, NULL, NULL);
+ if (agent->stream)
+ write(agent->stream->fd, buf, len);
+
+ return true;
+}
+
+static pj_status_t sip_client_create_sdp(struct sip_client *client, pj_pool_t *pool,
+ struct sip_agent *agent,
+ pjmedia_sdp_session **p_sdp)
+{
+ pj_time_val tv;
+ pjmedia_sdp_session *sdp;
+ pjmedia_sdp_media *m;
+ pjmedia_sdp_attr *attr;
+ struct sockaddr_storage rtp_addr;
+ char addr[INET6_ADDRSTRLEN];
+
+ PJ_ASSERT_RETURN(pool && p_sdp, PJ_EINVAL);
+
+ agent->rtp_sockfd = sip_client_create_socket(client, &rtp_addr, 4000, 5000);
+ if (client->stun)
+ stun_client_resolve(client->stun, agent->rtp_sockfd,
+ (struct sockaddr *)&rtp_addr);
+
+ agent->rtp_recv_callback.callback = sip_agent_rtp_recv_callback;
+ agent->rtp_recv_callback.data = agent;
+ event_register(agent->rtp_sockfd, EPOLLIN, &agent->rtp_recv_callback);
+
+ /* Create and initialize basic SDP session */
+ sdp = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_session));
+
+ pj_gettimeofday(&tv);
+ sdp->origin.user = pj_str("pjsip-siprtp");
+ sdp->origin.version = sdp->origin.id = tv.sec + 2208988800UL;
+ sdp->origin.net_type = pj_str("IN");
+ sdp->origin.addr_type = pj_str("IP4");
+ sdp->origin.addr = *pj_gethostname();
+ sdp->name = pj_str("pjsip");
+
+ /* Since we only support one media stream at present, put the
+ * SDP connection line in the session level.
+ */
+ sdp->conn = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_conn));
+ sdp->conn->net_type = pj_str("IN");
+ sdp->conn->addr_type = pj_str("IP4");
+ sockaddr_to_string(&rtp_addr, addr, sizeof(addr));
+ pj_strdup2_with_null(pool, &sdp->conn->addr, addr);
+
+ /* SDP time and attributes. */
+ sdp->time.start = sdp->time.stop = 0;
+ sdp->attr_count = 0;
+
+ /* Create media stream 0: */
+
+ sdp->media_count = 1;
+ m = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_media));
+ sdp->media[0] = m;
+
+ /* Standard media info: */
+ m->desc.media = pj_str("audio");
+ m->desc.port = sockaddr_get_port(&rtp_addr);
+ m->desc.port_count = 1;
+ m->desc.transport = pj_str("RTP/AVP");
+
+ /* Add format and rtpmap for each codec. */
+ m->desc.fmt_count = 1;
+ m->attr_count = 0;
+
+ {
+ pjmedia_sdp_rtpmap rtpmap;
+ char ptstr[10];
+
+ sprintf(ptstr, "%d", 0);
+ pj_strdup2_with_null(pool, &m->desc.fmt[0], ptstr);
+ rtpmap.pt = m->desc.fmt[0];
+ rtpmap.clock_rate = 64000;
+ rtpmap.enc_name = pj_str("PCMU");
+ rtpmap.param.slen = 0;
+
+ }
+
+ /* Add sendrecv attribute. */
+ attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr));
+ attr->name = pj_str("sendrecv");
+ m->attr[m->attr_count++] = attr;
+
+ /* Done */
+ *p_sdp = sdp;
+
+ return PJ_SUCCESS;
+}
+
+static int sip_agent_invite(struct agent *agent, struct session *session)
+{
+ struct sip_agent *sip_agent = agent_to_sip_agent(agent);
+ struct sip_client *client = sip_agent->client;
+ pjsip_dialog *dlg;
+ pjmedia_sdp_session *sdp;
+ pjsip_tx_data *tdata;
+ pj_status_t status;
+ pj_str_t dst_uri;
+
+ sip_agent->session = session;
+
+ dst_uri = pj_str((char *)sip_agent->identifier);
+
+ /* Create UAC dialog */
+ status = pjsip_dlg_create_uac(pjsip_ua_instance(),
+ &client->local_contact, /* local URI */
+ &client->local_contact, /* local Contact */
+ &dst_uri, /* remote URI */
+ &dst_uri, /* remote target */
+ &dlg); /* dialog */
+ if (status != PJ_SUCCESS) {
+ fprintf(stderr, "Failed to create uac dialog\n");
+ return -1;
+ }
+
+ pjsip_auth_clt_set_credentials(&dlg->auth_sess, 1, &client->cred);
+
+ /* Create SDP */
+ sip_client_create_sdp(client, dlg->pool, sip_agent, &sdp);
+
+ /* Create the INVITE session. */
+ status = pjsip_inv_create_uac(dlg, sdp, 0, &sip_agent->inv);
+ if (status != PJ_SUCCESS) {
+ fprintf(stderr, "Failed to create invite session\n");
+ pjsip_dlg_terminate(dlg);
+ return -1;
+ }
+
+
+ /* Attach call data to invite session */
+ sip_agent->inv->mod_data[mod_siprtp.id] = sip_agent;
+
+ /* Create initial INVITE request.
+ * This INVITE request will contain a perfectly good request and
+ * an SDP body as well.
+ */
+ status = pjsip_inv_invite(sip_agent->inv, &tdata);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, -1); /*TODO*/
+
+ /* Send initial INVITE request.
+ * From now on, the invite session's state will be reported to us
+ * via the invite session callbacks.
+ */
+ status = pjsip_inv_send_msg(sip_agent->inv, tdata);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, -1); /*TODO*/
+
+ return 0;
+}
+
+static int sip_agent_hangup(struct agent *agent, struct session *session)
+{
+ struct sip_agent *sip_agent = agent_to_sip_agent(agent);
+ pjsip_tx_data *tdata;
+ pj_status_t status;
+
+ printf("hangup %p\n", sip_agent->inv);
+
+ status = pjsip_inv_end_session(sip_agent->inv, 603, NULL, &tdata);
+ if (status == PJ_SUCCESS && tdata != NULL)
+ pjsip_inv_send_msg(sip_agent->inv, tdata);
+
+ if (sip_agent->rtp_sockfd) {
+ event_unregister(sip_agent->rtp_sockfd);
+ close(sip_agent->rtp_sockfd);
+ }
+ if (sip_agent->stream) {
+ event_unregister(sip_agent->stream->fd);
+ tapi_stream_free(sip_agent->stream);
+ }
+
+ sip_agent->inv->mod_data[mod_siprtp.id] = NULL;
+ free(sip_agent);
+
+ return 0;
+}
+
+static int sip_agent_alloc_stream(struct sip_agent *agent)
+{
+ int flags;
+
+ if (agent->stream)
+ printf("BUG!!!! %s:%s[%d]\n", __FILE__, __func__, __LINE__);
+
+ agent->stream = tapi_stream_alloc(agent->client->tdev);
+ agent->stream_recv_callback.callback = sip_agent_stream_recv_callback;
+ agent->stream_recv_callback.data = agent;
+
+ flags = fcntl(agent->stream->fd, F_GETFL, 0);
+ fcntl(agent->stream->fd, F_SETFL, flags | O_NONBLOCK);
+
+ event_register(agent->stream->fd, EPOLLIN, &agent->stream_recv_callback);
+
+ return 0;
+}
+
+static void sip_agent_free_stream(struct sip_agent *agent)
+{
+ if (!agent->stream)
+ return;
+
+ event_unregister(agent->stream->fd);
+ tapi_stream_free(agent->stream);
+ agent->stream = NULL;
+}
+
+static int sip_agent_accept(struct agent *agent, struct session *session)
+{
+ struct sip_agent *sip_agent = agent_to_sip_agent(agent);
+ pj_status_t status;
+ pjsip_tx_data *tdata;
+
+ /* Create 200 response .*/
+ status = pjsip_inv_answer(sip_agent->inv, 200,
+ NULL, NULL, &tdata);
+ if (status != PJ_SUCCESS) {
+ status = pjsip_inv_answer(sip_agent->inv,
+ PJSIP_SC_NOT_ACCEPTABLE,
+ NULL, NULL, &tdata);
+ if (status == PJ_SUCCESS)
+ pjsip_inv_send_msg(sip_agent->inv, tdata);
+ else
+ pjsip_inv_terminate(sip_agent->inv, 500, PJ_FALSE);
+ return -1;
+ }
+
+ /* Send the 200 response. */
+ status = pjsip_inv_send_msg(sip_agent->inv, tdata);
+ PJ_ASSERT_ON_FAIL(status == PJ_SUCCESS, return -1);
+
+ sip_agent_alloc_stream(sip_agent);
+
+ return 0;
+}
+
+static int sip_agent_get_endpoint(struct agent *agent, struct session *session)
+{
+ struct sip_agent *sip_agent = agent_to_sip_agent(agent);
+ return tapi_stream_get_endpoint(sip_agent->stream);
+}
+
+static const struct agent_ops sip_agent_ops = {
+ .invite = sip_agent_invite,
+ .accept = sip_agent_accept,
+ .hangup = sip_agent_hangup,
+ .get_endpoint = sip_agent_get_endpoint,
+};
+
+struct sip_agent *sip_client_alloc_agent(struct sip_client *client,
+ const char *identifier)
+{
+ struct sip_agent *agent;
+
+ agent = malloc(sizeof(*agent));
+ memset(agent, 0, sizeof(*agent));
+
+ agent->agent.ops = &sip_agent_ops;
+ agent->identifier = identifier;
+ agent->client = client;
+
+ return agent;
+}
+
+/*
+ * Receive incoming call
+ */
+static void process_incoming_call(struct sip_client *client, pjsip_rx_data *rdata)
+{
+ unsigned options;
+ struct sip_agent *agent;
+ pjsip_tx_data *tdata;
+ pj_status_t status;
+ pjsip_dialog *dlg;
+ pjmedia_sdp_session *sdp;
+
+ agent = sip_client_alloc_agent(client, "extern");
+
+ /* Verify that we can handle the request. */
+ options = 0;
+ status = pjsip_inv_verify_request(rdata, &options, NULL, NULL,
+ client->sip_endpt, &tdata);
+ if (status != PJ_SUCCESS) {
+ /*
+ * No we can't handle the incoming INVITE request.
+ */
+ if (tdata) {
+ pjsip_response_addr res_addr;
+ pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
+ pjsip_endpt_send_response(client->sip_endpt, &res_addr, tdata,
+ NULL, NULL);
+ } else {
+ /* Respond with 500 (Internal Server Error) */
+ pjsip_endpt_respond_stateless(client->sip_endpt, rdata, 500, NULL,
+ NULL, NULL);
+ }
+
+ return;
+ }
+
+ /* Create UAS dialog */
+ status = pjsip_dlg_create_uas(pjsip_ua_instance(), rdata,
+ &client->local_contact, &dlg);
+ if (status != PJ_SUCCESS) {
+ const pj_str_t reason = pj_str("Unable to create dialog");
+ pjsip_endpt_respond_stateless(client->sip_endpt, rdata,
+ 500, &reason,
+ NULL, NULL);
+ return;
+ }
+
+ /* Create SDP */
+ sip_client_create_sdp(client, dlg->pool, agent, &sdp);
+
+ /* Create UAS invite session */
+ status = pjsip_inv_create_uas(dlg, rdata, sdp, 0, &agent->inv);
+ if (status != PJ_SUCCESS) {
+ pjsip_dlg_create_response(dlg, rdata, 500, NULL, &tdata);
+ pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), tdata);
+ return;
+ }
+
+ /* Attach call data to invite session */
+ agent->inv->mod_data[mod_siprtp.id] = agent;
+
+ /* Create 180 response .*/
+ status = pjsip_inv_initial_answer(agent->inv, rdata, 180,
+ NULL, NULL, &tdata);
+ if (status != PJ_SUCCESS) {
+ status = pjsip_inv_initial_answer(agent->inv, rdata,
+ PJSIP_SC_NOT_ACCEPTABLE,
+ NULL, NULL, &tdata);
+ if (status == PJ_SUCCESS)
+ pjsip_inv_send_msg(agent->inv, tdata);
+ else
+ pjsip_inv_terminate(agent->inv, 500, PJ_FALSE);
+ return;
+ }
+
+ /* Send the 180 response. */
+ status = pjsip_inv_send_msg(agent->inv, tdata);
+ PJ_ASSERT_ON_FAIL(status == PJ_SUCCESS, return);
+
+ if (client->incoming_call_cb)
+ client->incoming_call_cb(client, agent);
+}
+
+/* Callback to be called to handle incoming requests outside dialogs: */
+static pj_bool_t on_rx_request(pjsip_rx_data *rdata)
+{
+ struct sip_client *client = global_client;
+
+ /* Ignore strandled ACKs (must not send respone */
+ if (rdata->msg_info.msg->line.req.method.id == PJSIP_ACK_METHOD)
+ return PJ_FALSE;
+
+ /* Respond (statelessly) any non-INVITE requests with 500 */
+ if (rdata->msg_info.msg->line.req.method.id != PJSIP_INVITE_METHOD) {
+ pj_str_t reason = pj_str("Unsupported Operation");
+ pjsip_endpt_respond_stateless(client->sip_endpt, rdata,
+ 500, &reason,
+ NULL, NULL);
+ return PJ_TRUE;
+ }
+
+ /* Handle incoming INVITE */
+ process_incoming_call(client, rdata);
+
+ /* Done */
+ return PJ_TRUE;
+}
+
+static pjsip_module sip_client_mod = {
+ NULL, NULL, /* prev, next. */
+ { "mod-tapisip", 13 }, /* Name. */
+ -1, /* Id */
+ PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */
+ NULL, /* load() */
+ NULL, /* start() */
+ NULL, /* stop() */
+ NULL, /* unload() */
+ &on_rx_request, /* on_rx_request() */
+ NULL, /* on_rx_response() */
+ NULL, /* on_tx_request. */
+ NULL, /* on_tx_response() */
+ NULL, /* on_tsx_state() */
+};
+
+/* Callback to be called when dialog has forked: */
+static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e)
+{
+ PJ_UNUSED_ARG(inv);
+ PJ_UNUSED_ARG(e);
+}
+
+/* Callback to be called when invite session's state has changed: */
+static void call_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
+{
+ struct sip_agent *agent = inv->mod_data[mod_siprtp.id];
+
+ printf("state changed: %d\n", inv->state);
+
+ if (!agent)
+ return;
+
+ switch (inv->state) {
+ case PJSIP_INV_STATE_DISCONNECTED:
+ printf("Disconnected\n");
+ if (agent->session)
+ session_hangup(agent->session, &agent->agent);
+ if (agent->rtp_sockfd) {
+ event_unregister(agent->rtp_sockfd);
+ close(agent->rtp_sockfd);
+ }
+ sip_agent_free_stream(agent);
+ free(agent);
+ inv->mod_data[mod_siprtp.id] = NULL;
+ break;
+ case PJSIP_INV_STATE_CONFIRMED:
+ printf("Connected: %p\n", agent->stream);
+ if (agent->stream)
+ break;
+ sip_agent_alloc_stream(agent);
+ session_accept(agent->session, &agent->agent);
+ break;
+ default:
+ break;
+ }
+}
+
+static void call_on_media_update(pjsip_inv_session *inv, pj_status_t status)
+{
+ struct sip_agent *agent;
+ pj_pool_t *pool;
+ const pjmedia_sdp_session *local_sdp, *remote_sdp;
+ char local[100];
+ char remote[100];
+ int i;
+
+ printf("media updte\n");
+
+ agent = inv->mod_data[mod_siprtp.id];
+ pool = inv->dlg->pool;
+
+ /* Do nothing if media negotiation has failed */
+ if (status != PJ_SUCCESS)
+ return;
+ /* Capture stream definition from the SDP */
+ pjmedia_sdp_neg_get_active_local(inv->neg, &local_sdp);
+ pjmedia_sdp_neg_get_active_remote(inv->neg, &remote_sdp);
+
+ strlcpy(local, local_sdp->conn->addr.ptr, local_sdp->conn->addr.slen + 1);
+ printf("local media count: %d\n", local_sdp->media_count);
+ printf("local: %s %d\n", local,
+ ntohs(local_sdp->media[0]->desc.port));
+ strlcpy(remote, remote_sdp->conn->addr.ptr, remote_sdp->conn->addr.slen + 1);
+ printf("remote media count: %d\n", remote_sdp->media_count);
+ printf("remote: %s %d\n", remote,
+ ntohs(remote_sdp->media[0]->desc.port));
+
+ agent->remote_addr.ss_family = AF_INET;
+ inet_pton(AF_INET, remote,
+ sockaddr_get_addr(&agent->remote_addr));
+ sockaddr_set_port(&agent->remote_addr, remote_sdp->media[0]->desc.port);
+
+ printf("attributes: %d\n", remote_sdp->attr_count);
+ for (i = 0; i < remote_sdp->attr_count; ++i)
+ printf("%s: %s\n", remote_sdp->attr[i]->name.ptr,
+ remote_sdp->attr[i]->value.ptr);
+
+}
+
+static int sip_client_init_sip_endpoint(struct sip_client *client)
+{
+ pj_status_t status;
+ pjsip_host_port addrname;
+ pjsip_inv_callback inv_cb;
+ pjsip_transport *tp;
+ char public_addr[INET6_ADDRSTRLEN];
+
+ global_client = client;
+
+ pj_caching_pool_init(&client->cp, &pj_pool_factory_default_policy, 0);
+ client->pool = pj_pool_create(&client->cp.factory, "tapi sip", 1000, 1000, NULL);
+
+ status = pjsip_endpt_create(&client->cp.factory, NULL,
+ &client->sip_endpt);
+
+ client->sockfd = sip_client_create_socket(client, &client->public_addr, 5060, 5100);
+ if (client->stun)
+ stun_client_resolve(client->stun, client->sockfd, (struct sockaddr *)&client->public_addr);
+
+ sockaddr_to_string(&client->public_addr, public_addr, sizeof(public_addr));
+
+ addrname.host = pj_str(public_addr);
+ addrname.port = sockaddr_get_port(&client->public_addr);
+
+ pjsip_udp_transport_attach(client->sip_endpt, client->sockfd, &addrname, 1, &tp);
+
+ status = pjsip_tsx_layer_init_module(client->sip_endpt);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+
+ status = pjsip_ua_init_module(client->sip_endpt, NULL);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+
+ status = pjsip_100rel_init_module(client->sip_endpt);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
+
+ pj_bzero(&inv_cb, sizeof(inv_cb));
+ inv_cb.on_state_changed = &call_on_state_changed;
+ inv_cb.on_new_session = &call_on_forked;
+ inv_cb.on_media_update = &call_on_media_update;
+
+ status = pjsip_inv_usage_init(client->sip_endpt, &inv_cb);
+ PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
+
+ status = pjsip_endpt_register_module(client->sip_endpt, &sip_client_mod);
+
+ pj_thread_create(client->pool, "sip client", &sip_worker_thread, client,
+ 0, 0, &client->sip_thread);
+
+ return status;
+}
+
+static void sip_client_register_callback(struct pjsip_regc_cbparam *param)
+{
+ if (param->status != PJ_SUCCESS || param->code / 100 != 2)
+ printf("Failed to register: %d %d", param->status, param->code);
+}
+
+void sip_client_free(struct sip_client *client)
+{
+ pjsip_regc_destroy(client->regc);
+ pjsip_endpt_destroy(client->sip_endpt);
+}
+
+void sip_client_register(struct sip_client *client)
+{
+ pjsip_tx_data *tdata;
+
+ pjsip_regc_register(client->regc, true, &tdata);
+ pjsip_regc_send(client->regc, tdata);
+}
+
+void sip_client_set_cred(struct sip_client *client)
+{
+ char local_contact[100];
+ char server_uri[100];
+ char s[INET6_ADDRSTRLEN];
+ char contact_addr[INET6_ADDRSTRLEN + 10];
+ pj_str_t pj_contact_addr;
+
+ sockaddr_to_string(&client->public_addr, s, sizeof(s));
+
+ snprintf(contact_addr, sizeof(contact_addr), "sip:%s:%d", s,
+ sockaddr_get_port(&client->public_addr));
+ pj_contact_addr = pj_str(contact_addr);
+
+ client->cred.realm = pj_str((char *)client->config->host);
+ client->cred.scheme = pj_str("digest");
+ client->cred.username = pj_str((char *)client->config->username);
+ client->cred.data_type = PJSIP_CRED_DATA_PLAIN_PASSWD;
+ client->cred.data = pj_str((char *)client->config->password);
+
+ snprintf(local_contact, sizeof(local_contact), "sip:%s@%s",
+ client->config->username, client->config->host);
+ pj_strdup2_with_null(client->pool, &client->local_contact, local_contact);
+
+ snprintf(server_uri, sizeof(server_uri), "sip:%s\n", client->config->host);
+ pj_strdup2_with_null(client->pool, &client->server_uri, server_uri);
+
+ pjsip_regc_init(client->regc, &client->server_uri, &client->local_contact,
+ &client->local_contact, 1, &pj_contact_addr, 3600);
+ pjsip_regc_set_credentials(client->regc, 1, &client->cred);
+
+ sip_client_register(client);
+}
+
+void sip_client_init(struct sip_client *client, struct tapi_device *tdev,
+ const struct sip_client_config *config)
+{
+ global_client = client;
+ client->config = config;
+
+ client->tdev = tdev;
+
+ iface_get_addr(config->iface, &client->local_addr);
+
+ if (config->stun_host && config->stun_port)
+ client->stun = stun_client_alloc(config->stun_host, config->stun_port);
+ else
+ client->stun = NULL;
+
+ sip_client_init_sip_endpoint(client);
+
+ pjsip_regc_create(client->sip_endpt, client, sip_client_register_callback,
+ &client->regc);
+
+ sip_client_set_cred(client);
+}
+
+
diff --git a/package/tapi_sip/src/sip_client.h b/package/tapi_sip/src/sip_client.h
new file mode 100644
index 0000000..1c494b6
--- /dev/null
+++ b/package/tapi_sip/src/sip_client.h
@@ -0,0 +1,61 @@
+#ifndef __SIP_CLIENT_H__
+#define __SIP_CLIENT_H__
+
+#include <tapi-stream.h>
+#include <tapi-device.h>
+
+#include <pjsip.h>
+#include <pjsip_ua.h>
+#include <pjsip_simple.h>
+#include <pjlib-util.h>
+#include <pjlib.h>
+
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <stdint.h>
+
+struct stun_client;
+struct sip_agent;
+
+struct sip_client_config {
+ const char *iface;
+
+ const char *host;
+ uint16_t port;
+ const char *username;
+ const char *password;
+
+ const char *stun_host;
+ uint16_t stun_port;
+};
+
+struct sip_client {
+ const struct sip_client_config *config;
+
+ struct tapi_device *tdev;
+ struct stun_client *stun;
+
+ struct sockaddr_storage public_addr;
+ struct sockaddr_storage local_addr;
+
+ int sockfd;
+
+ pj_thread_t *sip_thread;
+ pj_caching_pool cp;
+ pj_pool_t *pool;
+ pjsip_endpoint *sip_endpt;
+ pjsip_cred_info cred;
+ pj_str_t local_contact;
+ pj_str_t server_uri;
+
+ pjsip_regc *regc;
+
+ int (*incoming_call_cb)(struct sip_client *client, struct sip_agent *agent);
+};
+
+void sip_client_init(struct sip_client *client, struct tapi_device *dev,
+ const struct sip_client_config *config);
+
+struct sip_agent *sip_client_alloc_agent(struct sip_client *client, const char *dst_uri);
+
+#endif
diff --git a/package/tapi_sip/src/stun.c b/package/tapi_sip/src/stun.c
new file mode 100644
index 0000000..5c6b240
--- /dev/null
+++ b/package/tapi_sip/src/stun.c
@@ -0,0 +1,243 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include <poll.h>
+
+
+struct stun_client {
+ struct addrinfo *serverinfo;
+};
+
+struct stun_response {
+ struct sockaddr addr;
+};
+
+struct stun_header {
+ uint16_t type;
+ uint16_t length;
+ uint32_t cookie;
+ uint32_t id[3];
+} __attribute((packed));
+
+struct stun_packet {
+ struct stun_header header;
+ uint8_t data[0];
+} __attribute((packed));
+
+#define STUN_CLASS(c0, c1) (((c0) << 4) | ((c1) << 8))
+
+#define STUN_CLASS_REQUEST STUN_CLASS(0, 0)
+#define STUN_CLASS_INDICATION STUN_CLASS(0, 1)
+#define STUN_CLASS_SUCCESS STUN_CLASS(1, 0)
+#define STUN_CLASS_ERROR STUN_CLASS(1, 1)
+
+#define STUN_CLASS_MASK STUN_CLASS(1, 1)
+
+#define STUN_MESSAGE(msg) (((msg & 0xf10) << 2) | ((msg & 0x70) << 1) | (msg & 0xf))
+#define STUN_MESSAGE_BIND STUN_MESSAGE(1)
+
+#define STUN_COOKIE 0x2112a442
+
+enum {
+ STUN_ATTR_TYPE_MAPPED_ADDRESS = 0x1,
+ STUN_ATTR_TYPE_XOR_MAPPED_ADDRESS = 0x20,
+ STUN_ATTR_TYPE_XOR_MAPPED_ADDRESS2 = 0x8020,
+};
+
+static inline uint16_t get_unaligned_be16(const uint8_t *buf)
+{
+ return (buf[0] << 8) | buf[1];
+}
+
+static inline uint16_t get_unaligned_be32(const uint8_t *buf)
+{
+ return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+}
+
+static int stun_parse_xor_mapped_address(struct stun_response *response,
+ const uint8_t *buf, int length)
+{
+ uint8_t fam = buf[1];
+ uint16_t port = get_unaligned_be16(&buf[2]);
+ struct sockaddr_in *sin = (struct sockaddr_in *)&response->addr;
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&response->addr;
+
+
+ switch (fam) {
+ case 0x1:
+ sin->sin_family = AF_INET;
+ sin->sin_port = htons((port ^ (uint16_t)((STUN_COOKIE & 0xffff0000) >> 16)));
+ memcpy(&sin->sin_addr.s_addr, buf + 4, 4);
+ sin->sin_addr.s_addr ^= htonl(STUN_COOKIE);
+ printf("xor port: %d\n", sin->sin_port);
+ break;
+ case 0x2:
+ sin6->sin6_family = AF_INET6;
+ sin->sin_port = htons((port ^ (uint16_t)((STUN_COOKIE & 0xffff0000) >> 16)));
+ memcpy(sin6->sin6_addr.s6_addr, buf + 4, 16);
+ break;
+ }
+
+ return 0;
+}
+
+static int stun_parse_mapped_address(struct stun_response *response,
+ const uint8_t *buf, int length)
+{
+ uint8_t fam = buf[1];
+ uint16_t port = get_unaligned_be16(&buf[2]);
+ struct sockaddr_in *sin = (struct sockaddr_in *)&response->addr;
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&response->addr;
+
+ printf("port: %d\n", port);
+
+ switch (fam) {
+ case 0x1:
+ sin->sin_family = AF_INET;
+ sin->sin_port = htons(port);
+ memcpy(&sin->sin_addr.s_addr, buf + 4, 4);
+ break;
+ case 0x2:
+ sin6->sin6_family = AF_INET6;
+ sin6->sin6_port = htons(port);
+ memcpy(sin6->sin6_addr.s6_addr, buf + 4, 16);
+ break;
+ }
+
+ return 0;
+}
+
+static int stun_parse_response(struct stun_response *response,
+ const struct stun_packet *packet)
+{
+ uint16_t attr_type, attr_length;
+ const uint8_t *buf;
+ int length = ntohs(packet->header.length);
+ int ret;
+ int i = 0;
+
+ if (packet->header.cookie != htonl(STUN_COOKIE))
+ return -1;
+
+ if (packet->header.length < 4)
+ return 0;
+
+ buf = packet->data;
+
+ do {
+ attr_type = get_unaligned_be16(&buf[i]);
+ attr_length = get_unaligned_be16(&buf[i + 2]);
+ i += 4;
+
+ if (i + attr_length > length)
+ break;
+
+ switch (attr_type) {
+ case STUN_ATTR_TYPE_MAPPED_ADDRESS:
+ ret = stun_parse_mapped_address(response, &buf[i], attr_length);
+ break;
+ case STUN_ATTR_TYPE_XOR_MAPPED_ADDRESS:
+ case STUN_ATTR_TYPE_XOR_MAPPED_ADDRESS2:
+ ret = stun_parse_xor_mapped_address(response, &buf[i], attr_length);
+ break;
+ }
+
+ i += attr_length;
+
+ } while (i < length && ret == 0);
+
+ return 0;
+}
+
+static struct stun_packet *stun_packet_alloc(size_t data_size)
+{
+ return malloc(sizeof(struct stun_packet) + data_size);
+}
+
+int stun_client_resolve(struct stun_client *stun, int sockfd, struct sockaddr *addr)
+{
+ struct stun_packet *packet = stun_packet_alloc(200);
+ struct stun_response response;
+ int ret;
+ int retries = 4;
+ int timeout = 500;
+ struct pollfd pollfd;
+
+ pollfd.events = POLLIN;
+ pollfd.fd = sockfd;
+
+ packet->header.type = htons(STUN_CLASS_REQUEST | STUN_MESSAGE_BIND);
+ packet->header.cookie = htonl(STUN_COOKIE);
+ packet->header.id[0] = 0x12345678;
+ packet->header.id[1] = 0x12345678;
+ packet->header.id[2] = 0x12345678;
+ packet->header.length = 0;
+
+ while (retries--) {
+ ret = sendto(sockfd, packet, sizeof(struct stun_header) + packet->header.length,
+ 0, stun->serverinfo->ai_addr, stun->serverinfo->ai_addrlen);
+
+ ret = poll(&pollfd, 1, timeout);
+ switch (ret) {
+ case 0:
+ timeout <<= 1;
+ case -EINTR:
+ printf("retry\n");
+ continue;
+ default:
+ retries = 0;
+ }
+ ret = recvfrom(sockfd, packet, 200, 0, NULL, NULL);
+ }
+
+ if (ret <= 0)
+ return ret ? ret : -ETIMEDOUT;
+
+ memset(&response, 0, sizeof(response));
+ ret = stun_parse_response(&response, packet);
+
+ *addr = response.addr;
+
+ return ret;
+}
+
+struct stun_client *stun_client_alloc(const char *hostname, uint16_t port)
+{
+ struct addrinfo hints;
+ struct stun_client *stun;
+ int ret;
+ char p[6];
+
+
+ stun = malloc(sizeof(*stun));
+ if (!stun)
+ return NULL;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_DGRAM;
+ hints.ai_flags = AI_NUMERICSERV;
+
+ snprintf(p, sizeof(p), "%d", port);
+ if ((ret = getaddrinfo(hostname, p, &hints, &stun->serverinfo)) != 0) {
+ fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ret));
+ return NULL;
+ }
+
+
+ return stun;
+}
+
+void stun_client_free(struct stun_client *stun)
+{
+ freeaddrinfo(stun->serverinfo);
+ free(stun);
+}
diff --git a/package/tapi_sip/src/stun.h b/package/tapi_sip/src/stun.h
new file mode 100644
index 0000000..2cd61c9
--- /dev/null
+++ b/package/tapi_sip/src/stun.h
@@ -0,0 +1,12 @@
+#ifndef __STUN_H__
+#define __STUN_H__
+
+#include <stdint.h>
+
+struct stun_client;
+
+struct stun_client *stun_client_alloc(const char *hostname, uint16_t port);
+void stun_client_free(struct stun_client *);
+int stun_client_resolve(struct stun_client *stun, int sockfd, struct sockaddr *addr);
+
+#endif
diff --git a/package/tapi_sip/src/tapi_agent.c b/package/tapi_sip/src/tapi_agent.c
new file mode 100644
index 0000000..93c73c2
--- /dev/null
+++ b/package/tapi_sip/src/tapi_agent.c
@@ -0,0 +1,105 @@
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <tapi-port.h>
+
+#include "session.h"
+#include "agent.h"
+#include "tapi_agent.h"
+
+static int tapi_agent_invite(struct agent *agent, struct session *session)
+{
+ struct tapi_agent *tagent = agent_to_tapi_agent(agent);
+
+ if (tagent->session)
+ return -1;
+
+ tagent->state = TAPI_AGENT_STATE_RINGING;
+ tapi_port_set_ring(&tagent->port, true);
+
+ tagent->session = session;
+
+ return 0;
+}
+
+static int tapi_agent_accept(struct agent *agent, struct session *session)
+{
+ return 0;
+}
+
+static int tapi_agent_hangup(struct agent *agent, struct session *session)
+{
+ struct tapi_agent *tagent = agent_to_tapi_agent(agent);
+
+ switch (tagent->state) {
+ case TAPI_AGENT_STATE_RINGING:
+ tapi_port_set_ring(&tagent->port, false);
+ break;
+ default:
+ break;
+ }
+
+ tagent->state = TAPI_AGENT_STATE_IDLE;
+ tagent->session = NULL;
+
+ return 0;
+}
+
+static int tapi_agent_get_endpoint(struct agent *agent, struct session *session)
+{
+ struct tapi_agent *tagent = agent_to_tapi_agent(agent);
+ return tapi_port_get_endpoint(&tagent->port);
+}
+
+static const struct agent_ops tapi_agent_ops = {
+ .invite = tapi_agent_invite,
+ .accept = tapi_agent_accept,
+ .hangup = tapi_agent_hangup,
+ .get_endpoint = tapi_agent_get_endpoint,
+};
+
+static void tapi_agent_event(struct tapi_port *port, struct tapi_event *event,
+ void *data)
+{
+ struct tapi_agent *tagent = data;
+
+ if (event->type != TAPI_EVENT_TYPE_HOOK)
+ return;
+
+ if (!tagent->session)
+ return;
+
+ if (event->hook.on) {
+ session_hangup(tagent->session, &tagent->agent);
+ tagent->state = TAPI_AGENT_STATE_IDLE;
+ tagent->session = NULL;
+ } else {
+ session_accept(tagent->session, &tagent->agent);
+ tagent->state = TAPI_AGENT_STATE_ACTIVE;
+ }
+}
+
+void tapi_agent_init(struct tapi_device *tdev, int port, struct tapi_agent *tagent)
+{
+ int ret;
+
+ tagent->agent.ops = &tapi_agent_ops;
+ tagent->state = TAPI_AGENT_STATE_IDLE;
+ tagent->session = NULL;
+
+ ret = tapi_port_open(tdev, port, &tagent->port);
+ if (ret) {
+ printf("Failed to open tapi port %d: %d\n", port, ret);
+ return;
+ }
+
+ tagent->event_listener.callback = tapi_agent_event;
+ tagent->event_listener.data = tagent;
+
+ tapi_port_register_event(&tagent->port, &tagent->event_listener);
+}
+
+void tapi_agent_free(struct tapi_agent *tagent)
+{
+ tapi_port_unregister_event(&tagent->port, &tagent->event_listener);
+}
diff --git a/package/tapi_sip/src/tapi_agent.h b/package/tapi_sip/src/tapi_agent.h
new file mode 100644
index 0000000..12e8701
--- /dev/null
+++ b/package/tapi_sip/src/tapi_agent.h
@@ -0,0 +1,37 @@
+#ifndef __TAPI_AGENT_H__
+#define __TAPI_AGENT_H__
+
+#include "agent.h"
+#include <tapi-port.h>
+
+struct session;
+
+enum tapi_agent_state {
+ TAPI_AGENT_STATE_IDLE,
+ TAPI_AGENT_STATE_RINGING,
+ TAPI_AGENT_STATE_ACTIVE,
+};
+
+struct tapi_agent {
+ struct agent agent;
+ struct tapi_port port;
+ struct tapi_port_event_listener event_listener;
+
+ enum tapi_agent_state state;
+
+ struct session *session;
+};
+
+static inline struct tapi_agent *agent_to_tapi_agent(struct agent *agent)
+{
+ return container_of(agent, struct tapi_agent, agent);
+}
+
+static inline struct tapi_agent *port_to_tapi_agent(struct tapi_port *port)
+{
+ return container_of(port, struct tapi_agent, port);
+}
+
+void tapi_agent_init(struct tapi_device *tdev, int port, struct tapi_agent *tagent);
+
+#endif
diff --git a/package/tapi_sip/src/tapi_sip.c b/package/tapi_sip/src/tapi_sip.c
new file mode 100644
index 0000000..518c63c
--- /dev/null
+++ b/package/tapi_sip/src/tapi_sip.c
@@ -0,0 +1,179 @@
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <poll.h>
+#include <string.h>
+
+#include <linux/input.h>
+#include "dialdetector.h"
+
+#include <tapi-ioctl.h>
+
+#include <tapi-device.h>
+#include <tapi-port.h>
+
+#include "contact.h"
+#include "session.h"
+#include "sip_client.h"
+#include "sip_agent.h"
+#include "tapi_agent.h"
+
+static struct tapi_device dev;
+static struct tapi_agent *ports;
+
+static struct sip_client sip_client;
+
+static void release_session(struct session *session)
+{
+ free(session);
+}
+
+static void dial(struct tapi_agent *caller, struct agent *callee)
+{
+ struct session *session;
+
+ session = session_alloc(&dev, &caller->agent, callee, release_session);
+
+ if (!session)
+ return;
+
+ caller->session = session;
+}
+
+static void tel_dial(struct tapi_agent *caller, const char *number)
+{
+ int callee;
+
+ callee = atoi(number) - 1;
+
+ if (callee < 0 || callee > 1)
+ return;
+ dial(caller, &ports[callee].agent);
+}
+
+static void sip_dial(struct tapi_agent *caller, const char *identifier)
+{
+ struct sip_agent *callee;
+
+ callee = sip_client_alloc_agent(&sip_client, identifier);
+ if (!callee)
+ return;
+
+ dial(caller, &callee->agent);
+}
+
+static void dial_callback(struct tapi_port *port, size_t num_digits, const unsigned char *digits)
+{
+ struct tapi_agent *tagent = port_to_tapi_agent(port);
+ char number[100];
+ struct contact *contact;
+ size_t i;
+
+ if (tagent->state != TAPI_AGENT_STATE_IDLE)
+ return;
+
+ for (i = 0; i < num_digits; ++i) {
+ if (digits[0] > 9)
+ break;
+ number[i] = digits[i] + '0';
+ }
+ number[i] = '\0';
+
+ printf("dial callback: %s\n", number);
+
+ contact = contact_get(number);
+
+ if (!contact)
+ return;
+
+ if (strncmp("tel:", contact->identifier, 4) == 0) {
+ tel_dial(tagent, contact->identifier + 4);
+ } else if (strncmp("sip:", contact->identifier, 4) == 0) {
+ sip_dial(tagent, contact->identifier);
+ }
+ tagent->state = TAPI_AGENT_STATE_ACTIVE;
+}
+
+static int incoming_sip_call(struct sip_client *client,
+ struct sip_agent *caller)
+{
+ struct tapi_agent *callee = NULL;;
+ struct session *session;
+ int i;
+
+ for (i = 0; i < 2; ++i) {
+ if (ports[i].state == TAPI_AGENT_STATE_IDLE) {
+ callee = &ports[i];
+ break;
+ }
+ }
+
+ if (callee == NULL)
+ return -1;
+
+ session = session_alloc(&dev, &caller->agent, &callee->agent,
+ release_session);
+ caller->session = session;
+
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ struct dialdetector *dd, *dd2;
+ struct account *account;
+ struct sip_client_config config;
+ const char *interface = "eth0";
+ int ret;
+ int i;
+
+ if (argc > 1)
+ interface = argv[1];
+
+ pj_init();
+ pjlib_util_init();
+
+ contacts_init();
+
+ account = get_account();
+ if (!account) {
+ printf("No account\n");
+ return 1;
+ }
+
+ ret = tapi_device_open(0, &dev);
+ if (ret) {
+ printf("Failed to open tapi device: %d\n", ret);
+ return 1;
+ }
+
+ ports = calloc(dev.num_ports, sizeof(*ports));
+ for (i = 0; i < dev.num_ports; ++i)
+ tapi_agent_init(&dev, i, &ports[i]);
+
+ dd = dialdetector_alloc(&ports[0].port);
+ dd->dial_callback = dial_callback;
+ dd2 = dialdetector_alloc(&ports[1].port);
+ dd2->dial_callback = dial_callback;
+
+ config.iface = interface;
+ config.host = account->realm;
+ config.port = account->sip_port;
+ config.username = account->username;
+ config.password = account->password;
+
+ config.stun_host = account->stun_host;
+ config.stun_port = account->stun_port;
+
+ sip_client_init(&sip_client, &dev, &config);
+
+ sip_client.incoming_call_cb = incoming_sip_call;
+
+ tapi_mainloop();
+
+ return 0;
+}
generated by cgit v1.1 at 2024-12-20 22:40:59 +0000