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-rw-r--r--src/ipaccess/ipaccess-proxy.c427
1 files changed, 128 insertions, 299 deletions
diff --git a/src/ipaccess/ipaccess-proxy.c b/src/ipaccess/ipaccess-proxy.c
index 2dc1b2f6..b4d17e2c 100644
--- a/src/ipaccess/ipaccess-proxy.c
+++ b/src/ipaccess/ipaccess-proxy.c
@@ -29,7 +29,6 @@
#include <signal.h>
#include <time.h>
#include <sys/fcntl.h>
-#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
@@ -39,25 +38,25 @@
#include <getopt.h>
#include <openbsc/gsm_data.h>
-#include <osmocore/select.h>
-#include <osmocore/tlv.h>
-#include <osmocore/msgb.h>
+#include <osmocom/core/application.h>
+#include <osmocom/core/select.h>
+#include <osmocom/gsm/tlv.h>
+#include <osmocom/core/msgb.h>
#include <openbsc/debug.h>
#include <openbsc/ipaccess.h>
-#include <osmocore/talloc.h>
-
-static struct log_target *stderr_target;
+#include <openbsc/socket.h>
+#include <osmocom/core/talloc.h>
/* one instance of an ip.access protocol proxy */
struct ipa_proxy {
/* socket where we listen for incoming OML from BTS */
- struct bsc_fd oml_listen_fd;
+ struct osmo_fd oml_listen_fd;
/* socket where we listen for incoming RSL from BTS */
- struct bsc_fd rsl_listen_fd;
+ struct osmo_fd rsl_listen_fd;
/* list of BTS's (struct ipa_bts_conn */
struct llist_head bts_list;
/* the BSC reconnect timer */
- struct timer_list reconn_timer;
+ struct osmo_timer_list reconn_timer;
/* global GPRS NS data */
struct in_addr gprs_addr;
struct in_addr listen_addr;
@@ -67,7 +66,7 @@ struct ipa_proxy {
static struct ipa_proxy *ipp;
struct ipa_proxy_conn {
- struct bsc_fd fd;
+ struct osmo_fd fd;
struct llist_head tx_queue;
struct ipa_bts_conn *bts_conn;
};
@@ -81,8 +80,8 @@ struct ipa_bts_conn {
struct ipa_proxy *ipp;
/* the unit ID as determined by CCM */
struct {
- u_int16_t site_id;
- u_int16_t bts_id;
+ uint16_t site_id;
+ uint16_t bts_id;
} unit_id;
/* incoming connections from BTS */
@@ -94,18 +93,18 @@ struct ipa_bts_conn {
struct ipa_proxy_conn *bsc_rsl_conn[MAX_TRX];
/* UDP sockets for BTS and BSC injection */
- struct bsc_fd udp_bts_fd;
- struct bsc_fd udp_bsc_fd;
+ struct osmo_fd udp_bts_fd;
+ struct osmo_fd udp_bsc_fd;
/* NS data */
struct in_addr bts_addr;
- struct bsc_fd gprs_ns_fd;
+ struct osmo_fd gprs_ns_fd;
int gprs_local_port;
uint16_t gprs_orig_port;
uint32_t gprs_orig_ip;
char *id_tags[0xff];
- u_int8_t *id_resp;
+ uint8_t *id_resp;
unsigned int id_resp_len;
};
@@ -125,104 +124,13 @@ static char *listen_ipaddr;
static char *bsc_ipaddr;
static char *gprs_ns_ipaddr;
-static int make_gprs_sock(struct bsc_fd *bfd, int (*cb)(struct bsc_fd*,unsigned int), void *);
-static int gprs_ns_cb(struct bsc_fd *bfd, unsigned int what);
+static int gprs_ns_cb(struct osmo_fd *bfd, unsigned int what);
#define PROXY_ALLOC_SIZE 1200
-static const u_int8_t pong[] = { 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_PONG };
-static const u_int8_t id_ack[] = { 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_ACK };
-static const u_int8_t id_req[] = { 0, 17, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_GET,
- 0x01, IPAC_IDTAG_UNIT,
- 0x01, IPAC_IDTAG_MACADDR,
- 0x01, IPAC_IDTAG_LOCATION1,
- 0x01, IPAC_IDTAG_LOCATION2,
- 0x01, IPAC_IDTAG_EQUIPVERS,
- 0x01, IPAC_IDTAG_SWVERSION,
- 0x01, IPAC_IDTAG_UNITNAME,
- 0x01, IPAC_IDTAG_SERNR,
- };
-
-static const char *idtag_names[] = {
- [IPAC_IDTAG_SERNR] = "Serial_Number",
- [IPAC_IDTAG_UNITNAME] = "Unit_Name",
- [IPAC_IDTAG_LOCATION1] = "Location_1",
- [IPAC_IDTAG_LOCATION2] = "Location_2",
- [IPAC_IDTAG_EQUIPVERS] = "Equipment_Version",
- [IPAC_IDTAG_SWVERSION] = "Software_Version",
- [IPAC_IDTAG_IPADDR] = "IP_Address",
- [IPAC_IDTAG_MACADDR] = "MAC_Address",
- [IPAC_IDTAG_UNIT] = "Unit_ID",
-};
-
-static const char *ipac_idtag_name(int tag)
-{
- if (tag >= ARRAY_SIZE(idtag_names))
- return "unknown";
-
- return idtag_names[tag];
-}
-
-static int ipac_idtag_parse(struct tlv_parsed *dec, unsigned char *buf, int len)
-{
- u_int8_t t_len;
- u_int8_t t_tag;
- u_int8_t *cur = buf;
-
- while (cur < buf + len) {
- t_len = *cur++;
- t_tag = *cur++;
-
- DEBUGPC(DMI, "%s='%s' ", ipac_idtag_name(t_tag), cur);
-
- dec->lv[t_tag].len = t_len;
- dec->lv[t_tag].val = cur;
-
- cur += t_len;
- }
- return 0;
-}
-
-static int parse_unitid(const char *str, u_int16_t *site_id, u_int16_t *bts_id,
- u_int16_t *trx_id)
-{
- unsigned long ul;
- char *endptr;
- const char *nptr;
-
- nptr = str;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (site_id)
- *site_id = ul & 0xffff;
-
- if (*endptr++ != '/')
- return -EINVAL;
-
- nptr = endptr;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (bts_id)
- *bts_id = ul & 0xffff;
-
- if (*endptr++ != '/')
- return -EINVAL;
-
- nptr = endptr;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (trx_id)
- *trx_id = ul & 0xffff;
-
- return 0;
-}
-
static struct ipa_bts_conn *find_bts_by_unitid(struct ipa_proxy *ipp,
- u_int16_t site_id,
- u_int16_t bts_id)
+ uint16_t site_id,
+ uint16_t bts_id)
{
struct ipa_bts_conn *ipbc;
@@ -279,7 +187,7 @@ static struct ipa_proxy_conn *connect_bsc(struct sockaddr_in *sa, int priv_nr, v
#define logp_ipbc_uid(ss, lvl, ipbc, trx_id) _logp_ipbc_uid(ss, lvl, __FILE__, __LINE__, ipbc, trx_id)
static void _logp_ipbc_uid(unsigned int ss, unsigned int lvl, char *file, int line,
- struct ipa_bts_conn *ipbc, u_int8_t trx_id)
+ struct ipa_bts_conn *ipbc, uint8_t trx_id)
{
if (ipbc)
logp2(ss, lvl, file, line, 0, "(%u/%u/%u) ", ipbc->unit_id.site_id,
@@ -288,44 +196,7 @@ static void _logp_ipbc_uid(unsigned int ss, unsigned int lvl, char *file, int li
logp2(ss, lvl, file, line, 0, "unknown ");
}
-/* UDP socket handling */
-
-static int make_sock(struct bsc_fd *bfd, u_int16_t port, int proto, int priv_nr,
- int (*cb)(struct bsc_fd *fd, unsigned int what),
- void *data)
-{
- struct sockaddr_in addr;
- int ret, on = 1;
-
- bfd->fd = socket(AF_INET, SOCK_DGRAM, proto);
- bfd->cb = cb;
- bfd->when = BSC_FD_READ;
- bfd->data = data;
- bfd->priv_nr = priv_nr;
-
- memset(&addr, 0, sizeof(addr));
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- addr.sin_addr.s_addr = INADDR_ANY;
-
- setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
- ret = bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr));
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR, "could not bind socket: %s\n",
- strerror(errno));
- return -EIO;
- }
-
- ret = bsc_register_fd(bfd);
- if (ret < 0) {
- perror("register UDP fd");
- return ret;
- }
- return 0;
-}
-
-static int handle_udp_read(struct bsc_fd *bfd)
+static int handle_udp_read(struct osmo_fd *bfd)
{
struct ipa_bts_conn *ipbc = bfd->data;
struct ipa_proxy_conn *other_conn = NULL;
@@ -345,7 +216,7 @@ static int handle_udp_read(struct bsc_fd *bfd)
}
if (ret == 0) {
DEBUGP(DINP, "UDP peer disappeared, dead socket\n");
- bsc_unregister_fd(bfd);
+ osmo_fd_unregister(bfd);
close(bfd->fd);
bfd->fd = -1;
msgb_free(msg);
@@ -358,7 +229,7 @@ static int handle_udp_read(struct bsc_fd *bfd)
}
msgb_put(msg, ret);
msg->l2h = msg->data + sizeof(*hh);
- DEBUGP(DMI, "UDP RX: %s\n", hexdump(msg->data, msg->len));
+ DEBUGP(DMI, "UDP RX: %s\n", osmo_hexdump(msg->data, msg->len));
if (hh->len != msg->len - sizeof(*hh)) {
DEBUGP(DINP, "length (%u/%u) disagrees with header(%u)\n",
@@ -416,7 +287,7 @@ static int handle_udp_read(struct bsc_fd *bfd)
return 0;
}
-static int handle_udp_write(struct bsc_fd *bfd)
+static int handle_udp_write(struct osmo_fd *bfd)
{
/* not implemented yet */
bfd->when &= ~BSC_FD_WRITE;
@@ -425,7 +296,7 @@ static int handle_udp_write(struct bsc_fd *bfd)
}
/* callback from select.c in case one of the fd's can be read/written */
-static int udp_fd_cb(struct bsc_fd *bfd, unsigned int what)
+static int udp_fd_cb(struct osmo_fd *bfd, unsigned int what)
{
int rc = 0;
@@ -438,13 +309,13 @@ static int udp_fd_cb(struct bsc_fd *bfd, unsigned int what)
}
-static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct bsc_fd *bfd,
- u_int16_t site_id, u_int16_t bts_id,
- u_int16_t trx_id, struct tlv_parsed *tlvp,
+static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct osmo_fd *bfd,
+ uint16_t site_id, uint16_t bts_id,
+ uint16_t trx_id, struct tlv_parsed *tlvp,
struct msgb *msg)
{
struct ipa_bts_conn *ipbc;
- u_int16_t udp_port;
+ uint16_t udp_port;
int ret = 0;
struct sockaddr_in sin;
@@ -494,7 +365,7 @@ static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct bsc_fd *bfd,
/* Create UDP socket for BTS packet injection */
udp_port = 10000 + (site_id % 1000)*100 + (bts_id % 100);
- ret = make_sock(&ipbc->udp_bts_fd, udp_port, IPPROTO_UDP,
+ ret = make_sock(&ipbc->udp_bts_fd, IPPROTO_UDP, INADDR_ANY, udp_port,
UDP_TO_BTS, udp_fd_cb, ipbc);
if (ret < 0)
goto err_udp_bts;
@@ -503,7 +374,7 @@ static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct bsc_fd *bfd,
/* Create UDP socket for BSC packet injection */
udp_port = 20000 + (site_id % 1000)*100 + (bts_id % 100);
- ret = make_sock(&ipbc->udp_bsc_fd, udp_port, IPPROTO_UDP,
+ ret = make_sock(&ipbc->udp_bsc_fd, IPPROTO_UDP, INADDR_ANY, udp_port,
UDP_TO_BSC, udp_fd_cb, ipbc);
if (ret < 0)
goto err_udp_bsc;
@@ -515,7 +386,13 @@ static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct bsc_fd *bfd,
if (gprs_ns_ipaddr) {
struct sockaddr_in sock;
socklen_t len = sizeof(sock);
- ret = make_gprs_sock(&ipbc->gprs_ns_fd, gprs_ns_cb, ipbc);
+ struct in_addr addr;
+ uint32_t ip;
+
+ inet_aton(listen_ipaddr, &addr);
+ ip = ntohl(addr.s_addr); /* make_sock() needs host byte order */
+ ret = make_sock(&ipbc->gprs_ns_fd, IPPROTO_UDP, ip, 0, 0,
+ gprs_ns_cb, ipbc);
if (ret < 0) {
LOGP(DINP, LOGL_ERROR, "Creating the GPRS socket failed.\n");
goto err_udp_bsc;
@@ -536,9 +413,9 @@ static int ipbc_alloc_connect(struct ipa_proxy_conn *ipc, struct bsc_fd *bfd,
return 0;
err_udp_bsc:
- bsc_unregister_fd(&ipbc->udp_bts_fd);
+ osmo_fd_unregister(&ipbc->udp_bts_fd);
err_udp_bts:
- bsc_unregister_fd(&ipbc->bsc_oml_conn->fd);
+ osmo_fd_unregister(&ipbc->bsc_oml_conn->fd);
close(ipbc->bsc_oml_conn->fd.fd);
talloc_free(ipbc->bsc_oml_conn);
ipbc->bsc_oml_conn = NULL;
@@ -546,7 +423,7 @@ err_bsc_conn:
talloc_free(ipbc->id_resp);
talloc_free(ipbc);
#if 0
- bsc_unregister_fd(bfd);
+ osmo_fd_unregister(bfd);
close(bfd->fd);
talloc_free(bfd);
#endif
@@ -555,23 +432,17 @@ err_out:
}
static int ipaccess_rcvmsg(struct ipa_proxy_conn *ipc, struct msgb *msg,
- struct bsc_fd *bfd)
+ struct osmo_fd *bfd)
{
struct tlv_parsed tlvp;
- u_int8_t msg_type = *(msg->l2h);
- u_int16_t site_id, bts_id, trx_id;
+ uint8_t msg_type = *(msg->l2h);
+ uint16_t site_id, bts_id, trx_id;
struct ipa_bts_conn *ipbc;
int ret = 0;
switch (msg_type) {
case IPAC_MSGT_PING:
- ret = write(bfd->fd, pong, sizeof(pong));
- if (ret < 0)
- return ret;
- if (ret < sizeof(pong)) {
- DEBUGP(DINP, "short write\n");
- return -EIO;
- }
+ ret = ipaccess_send_pong(bfd->fd);
break;
case IPAC_MSGT_PONG:
DEBUGP(DMI, "PONG!\n");
@@ -579,8 +450,8 @@ static int ipaccess_rcvmsg(struct ipa_proxy_conn *ipc, struct msgb *msg,
case IPAC_MSGT_ID_RESP:
DEBUGP(DMI, "ID_RESP ");
/* parse tags, search for Unit ID */
- ipac_idtag_parse(&tlvp, (u_int8_t *)msg->l2h + 2,
- msgb_l2len(msg)-2);
+ ipaccess_idtag_parse(&tlvp, (uint8_t *)msg->l2h + 2,
+ msgb_l2len(msg)-2);
DEBUGP(DMI, "\n");
if (!TLVP_PRESENT(&tlvp, IPAC_IDTAG_UNIT)) {
@@ -590,8 +461,8 @@ static int ipaccess_rcvmsg(struct ipa_proxy_conn *ipc, struct msgb *msg,
/* lookup BTS, create sign_link, ... */
site_id = bts_id = trx_id = 0;
- parse_unitid((char *)TLVP_VAL(&tlvp, IPAC_IDTAG_UNIT),
- &site_id, &bts_id, &trx_id);
+ ipaccess_parse_unitid((char *)TLVP_VAL(&tlvp, IPAC_IDTAG_UNIT),
+ &site_id, &bts_id, &trx_id);
ipbc = find_bts_by_unitid(ipp, site_id, bts_id);
if (!ipbc) {
/* We have not found an ipbc (per-bts proxy instance)
@@ -654,7 +525,7 @@ static int ipaccess_rcvmsg(struct ipa_proxy_conn *ipc, struct msgb *msg,
break;
case IPAC_MSGT_ID_ACK:
DEBUGP(DMI, "ID_ACK? -> ACK!\n");
- ret = write(bfd->fd, id_ack, sizeof(id_ack));
+ ret = ipaccess_send_id_ack(bfd->fd);
break;
default:
LOGP(DMI, LOGL_ERROR, "Unhandled IPA type; %d\n", msg_type);
@@ -664,7 +535,7 @@ static int ipaccess_rcvmsg(struct ipa_proxy_conn *ipc, struct msgb *msg,
return 0;
}
-struct msgb *ipaccess_read_msg(struct bsc_fd *bfd, int *error)
+struct msgb *ipaccess_proxy_read_msg(struct osmo_fd *bfd, int *error)
{
struct msgb *msg = msgb_alloc(PROXY_ALLOC_SIZE, "Abis/IP");
struct ipaccess_head *hh;
@@ -785,10 +656,10 @@ static void reconn_tmr_cb(void *data)
return;
reschedule:
- bsc_schedule_timer(&ipp->reconn_timer, 5, 0);
+ osmo_timer_schedule(&ipp->reconn_timer, 5, 0);
}
-static void handle_dead_socket(struct bsc_fd *bfd)
+static void handle_dead_socket(struct osmo_fd *bfd)
{
struct ipa_proxy_conn *ipc = bfd->data; /* local conn */
struct ipa_proxy_conn *bsc_conn; /* remote conn */
@@ -796,7 +667,7 @@ static void handle_dead_socket(struct bsc_fd *bfd)
unsigned int trx_id = bfd->priv_nr >> 8;
struct msgb *msg, *msg2;
- bsc_unregister_fd(bfd);
+ osmo_fd_unregister(bfd);
close(bfd->fd);
bfd->fd = -1;
@@ -806,10 +677,15 @@ static void handle_dead_socket(struct bsc_fd *bfd)
switch (bfd->priv_nr & 0xff) {
case OML_FROM_BTS: /* incoming OML data from BTS, forward to BSC OML */
+ /* The BTS started a connection with us but we got no
+ * IPAC_MSGT_ID_RESP message yet, in that scenario we did not
+ * allocate the ipa_bts_conn structure. */
+ if (ipbc == NULL)
+ break;
ipbc->oml_conn = NULL;
bsc_conn = ipbc->bsc_oml_conn;
/* close the connection to the BSC */
- bsc_unregister_fd(&bsc_conn->fd);
+ osmo_fd_unregister(&bsc_conn->fd);
close(bsc_conn->fd.fd);
llist_for_each_entry_safe(msg, msg2, &bsc_conn->tx_queue, list)
msgb_free(msg);
@@ -821,7 +697,7 @@ static void handle_dead_socket(struct bsc_fd *bfd)
ipbc->rsl_conn[trx_id] = NULL;
bsc_conn = ipbc->bsc_rsl_conn[trx_id];
/* close the connection to the BSC */
- bsc_unregister_fd(&bsc_conn->fd);
+ osmo_fd_unregister(&bsc_conn->fd);
close(bsc_conn->fd.fd);
llist_for_each_entry_safe(msg, msg2, &bsc_conn->tx_queue, list)
msgb_free(msg);
@@ -832,13 +708,13 @@ static void handle_dead_socket(struct bsc_fd *bfd)
ipbc->bsc_oml_conn = NULL;
bsc_conn = ipbc->oml_conn;
/* start reconnect timer */
- bsc_schedule_timer(&ipp->reconn_timer, 5, 0);
+ osmo_timer_schedule(&ipp->reconn_timer, 5, 0);
break;
case RSL_TO_BSC: /* incoming RSL data from BSC, forward to BTS RSL */
ipbc->bsc_rsl_conn[trx_id] = NULL;
bsc_conn = ipbc->rsl_conn[trx_id];
/* start reconnect timer */
- bsc_schedule_timer(&ipp->reconn_timer, 5, 0);
+ osmo_timer_schedule(&ipp->reconn_timer, 5, 0);
break;
default:
bsc_conn = NULL;
@@ -871,20 +747,20 @@ static void patch_gprs_msg(struct ipa_bts_conn *ipbc, int priv_nr, struct msgb *
msg->l2h[2] == 0x00 && msg->l2h[3] == 0x15 &&
msg->l2h[18] == 0xf5 && msg->l2h[19] == 0xf2) {
nsvci = &msg->l2h[23];
- ipbc->gprs_orig_port = *(u_int16_t *)(nsvci+8);
- ipbc->gprs_orig_ip = *(u_int32_t *)(nsvci+10);
- *(u_int16_t *)(nsvci+8) = htons(ipbc->gprs_local_port);
- *(u_int32_t *)(nsvci+10) = ipbc->ipp->listen_addr.s_addr;
+ ipbc->gprs_orig_port = *(uint16_t *)(nsvci+8);
+ ipbc->gprs_orig_ip = *(uint32_t *)(nsvci+10);
+ *(uint16_t *)(nsvci+8) = htons(ipbc->gprs_local_port);
+ *(uint32_t *)(nsvci+10) = ipbc->ipp->listen_addr.s_addr;
} else if (msg->l2h[0] == 0x10 && msg->l2h[1] == 0x80 &&
msg->l2h[2] == 0x00 && msg->l2h[3] == 0x15 &&
msg->l2h[18] == 0xf6 && msg->l2h[19] == 0xf2) {
nsvci = &msg->l2h[23];
- *(u_int16_t *)(nsvci+8) = ipbc->gprs_orig_port;
- *(u_int32_t *)(nsvci+10) = ipbc->gprs_orig_ip;
+ *(uint16_t *)(nsvci+8) = ipbc->gprs_orig_port;
+ *(uint32_t *)(nsvci+10) = ipbc->gprs_orig_ip;
}
}
-static int handle_tcp_read(struct bsc_fd *bfd)
+static int handle_tcp_read(struct osmo_fd *bfd)
{
struct ipa_proxy_conn *ipc = bfd->data;
struct ipa_bts_conn *ipbc = ipc->bts_conn;
@@ -899,7 +775,7 @@ static int handle_tcp_read(struct bsc_fd *bfd)
else
btsbsc = "BSC";
- msg = ipaccess_read_msg(bfd, &ret);
+ msg = ipaccess_proxy_read_msg(bfd, &ret);
if (!msg) {
if (ret == 0) {
logp_ipbc_uid(DINP, LOGL_NOTICE, ipbc, bfd->priv_nr >> 8);
@@ -912,13 +788,13 @@ static int handle_tcp_read(struct bsc_fd *bfd)
msgb_put(msg, ret);
logp_ipbc_uid(DMI, LOGL_DEBUG, ipbc, bfd->priv_nr >> 8);
- DEBUGPC(DMI, "RX<-%s: %s\n", btsbsc, hexdump(msg->data, msg->len));
+ DEBUGPC(DMI, "RX<-%s: %s\n", btsbsc, osmo_hexdump(msg->data, msg->len));
hh = (struct ipaccess_head *) msg->data;
if (hh->proto == IPAC_PROTO_IPACCESS) {
ret = ipaccess_rcvmsg(ipc, msg, bfd);
if (ret < 0) {
- bsc_unregister_fd(bfd);
+ osmo_fd_unregister(bfd);
close(bfd->fd);
bfd->fd = -1;
talloc_free(bfd);
@@ -958,7 +834,7 @@ static int handle_tcp_read(struct bsc_fd *bfd)
}
/* a TCP socket is ready to be written to */
-static int handle_tcp_write(struct bsc_fd *bfd)
+static int handle_tcp_write(struct osmo_fd *bfd)
{
struct ipa_proxy_conn *ipc = bfd->data;
struct ipa_bts_conn *ipbc = ipc->bts_conn;
@@ -984,7 +860,7 @@ static int handle_tcp_write(struct bsc_fd *bfd)
logp_ipbc_uid(DMI, LOGL_DEBUG, ipbc, bfd->priv_nr >> 8);
DEBUGPC(DMI, "TX %04x: %s\n", bfd->priv_nr,
- hexdump(msg->data, msg->len));
+ osmo_hexdump(msg->data, msg->len));
ret = send(bfd->fd, msg->data, msg->len, 0);
msgb_free(msg);
@@ -999,7 +875,7 @@ static int handle_tcp_write(struct bsc_fd *bfd)
}
/* callback from select.c in case one of the fd's can be read/written */
-static int ipaccess_fd_cb(struct bsc_fd *bfd, unsigned int what)
+static int ipaccess_fd_cb(struct osmo_fd *bfd, unsigned int what)
{
int rc = 0;
@@ -1015,11 +891,11 @@ static int ipaccess_fd_cb(struct bsc_fd *bfd, unsigned int what)
}
/* callback of the listening filedescriptor */
-static int listen_fd_cb(struct bsc_fd *listen_bfd, unsigned int what)
+static int listen_fd_cb(struct osmo_fd *listen_bfd, unsigned int what)
{
int ret;
struct ipa_proxy_conn *ipc;
- struct bsc_fd *bfd;
+ struct osmo_fd *bfd;
struct sockaddr_in sa;
socklen_t sa_len = sizeof(sa);
@@ -1047,7 +923,7 @@ static int listen_fd_cb(struct bsc_fd *listen_bfd, unsigned int what)
bfd->priv_nr = listen_bfd->priv_nr;
bfd->cb = ipaccess_fd_cb;
bfd->when = BSC_FD_READ;
- ret = bsc_register_fd(bfd);
+ ret = osmo_fd_register(bfd);
if (ret < 0) {
LOGP(DINP, LOGL_ERROR, "could not register FD\n");
close(bfd->fd);
@@ -1056,7 +932,7 @@ static int listen_fd_cb(struct bsc_fd *listen_bfd, unsigned int what)
}
/* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */
- ret = write(bfd->fd, id_req, sizeof(id_req));
+ ret = ipaccess_send_id_req(bfd->fd);
return 0;
}
@@ -1078,7 +954,7 @@ static void send_ns(int fd, const char *buf, int size, struct in_addr ip, int po
}
}
-static int gprs_ns_cb(struct bsc_fd *bfd, unsigned int what)
+static int gprs_ns_cb(struct osmo_fd *bfd, unsigned int what)
{
struct ipa_bts_conn *bts;
char buf[4096];
@@ -1109,85 +985,11 @@ static int gprs_ns_cb(struct bsc_fd *bfd, unsigned int what)
return 0;
}
-static int make_listen_sock(struct bsc_fd *bfd, u_int16_t port, int priv_nr,
- int (*cb)(struct bsc_fd *fd, unsigned int what))
-{
- struct sockaddr_in addr;
- int ret, on = 1;
-
- bfd->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- bfd->cb = cb;
- bfd->when = BSC_FD_READ;
- bfd->priv_nr = priv_nr;
-
- memset(&addr, 0, sizeof(addr));
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- if (!listen_ipaddr)
- addr.sin_addr.s_addr = INADDR_ANY;
- else
- inet_aton(listen_ipaddr, &addr.sin_addr);
-
- setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
- ret = bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr));
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR,
- "Could not bind listen socket for IP %s with error: %s.\n",
- listen_ipaddr, strerror(errno));
- return -EIO;
- }
-
- ret = listen(bfd->fd, 1);
- if (ret < 0) {
- perror("listen");
- return ret;
- }
-
- ret = bsc_register_fd(bfd);
- if (ret < 0) {
- perror("register_listen_fd");
- return ret;
- }
- return 0;
-}
-
-static int make_gprs_sock(struct bsc_fd *bfd, int (*cb)(struct bsc_fd*,unsigned int), void *data)
-{
- struct sockaddr_in addr;
- int ret;
-
- bfd->fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- bfd->cb = cb;
- bfd->data = data;
- bfd->when = BSC_FD_READ;
-
- memset(&addr, 0, sizeof(addr));
- addr.sin_family = AF_INET;
- addr.sin_port = 0;
- inet_aton(listen_ipaddr, &addr.sin_addr);
-
- ret = bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr));
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR,
- "Could not bind n socket for IP %s with error: %s.\n",
- listen_ipaddr, strerror(errno));
- return -EIO;
- }
-
- ret = bsc_register_fd(bfd);
- if (ret < 0) {
- perror("register_listen_fd");
- return ret;
- }
- return 0;
-}
-
/* Actively connect to a BSC. */
static struct ipa_proxy_conn *connect_bsc(struct sockaddr_in *sa, int priv_nr, void *data)
{
struct ipa_proxy_conn *ipc;
- struct bsc_fd *bfd;
+ struct osmo_fd *bfd;
int ret, on = 1;
ipc = alloc_conn();
@@ -1215,7 +1017,7 @@ static struct ipa_proxy_conn *connect_bsc(struct sockaddr_in *sa, int priv_nr, v
}
/* pre-fill tx_queue with identity request */
- ret = bsc_register_fd(bfd);
+ ret = osmo_fd_register(bfd);
if (ret < 0) {
close(bfd->fd);
talloc_free(ipc);
@@ -1237,14 +1039,14 @@ static int ipaccess_proxy_setup(void)
ipp->reconn_timer.data = ipp;
/* Listen for OML connections */
- ret = make_listen_sock(&ipp->oml_listen_fd, IPA_TCP_PORT_OML,
- OML_FROM_BTS, listen_fd_cb);
+ ret = make_sock(&ipp->oml_listen_fd, IPPROTO_TCP, INADDR_ANY,
+ IPA_TCP_PORT_OML, OML_FROM_BTS, listen_fd_cb, NULL);
if (ret < 0)
return ret;
/* Listen for RSL connections */
- ret = make_listen_sock(&ipp->rsl_listen_fd, IPA_TCP_PORT_RSL,
- RSL_FROM_BTS, listen_fd_cb);
+ ret = make_sock(&ipp->rsl_listen_fd, IPPROTO_TCP, INADDR_ANY,
+ IPA_TCP_PORT_RSL, RSL_FROM_BTS, listen_fd_cb, NULL);
if (ret < 0)
return ret;
@@ -1290,11 +1092,22 @@ static void print_help()
static void print_usage()
{
- printf("Usage: ipaccess-proxy\n");
+ printf("Usage: ipaccess-proxy [options]\n");
}
+enum {
+ IPA_PROXY_OPT_LISTEN_NONE = 0,
+ IPA_PROXY_OPT_LISTEN_IP = (1 << 0),
+ IPA_PROXY_OPT_BSC_IP = (1 << 1),
+};
+
static void handle_options(int argc, char** argv)
{
+ int options_mask = 0;
+
+ /* disable explicit missing arguments error output from getopt_long */
+ opterr = 0;
+
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
@@ -1304,7 +1117,6 @@ static void handle_options(int argc, char** argv)
{"log-level", 1, 0, 'e'},
{"listen", 1, 0, 'l'},
{"bsc", 1, 0, 'b'},
- {"udp", 1, 0, 'u'},
{0, 0, 0, 0}
};
@@ -1320,43 +1132,59 @@ static void handle_options(int argc, char** argv)
exit(0);
case 'l':
listen_ipaddr = optarg;
+ options_mask |= IPA_PROXY_OPT_LISTEN_IP;
break;
case 'b':
bsc_ipaddr = optarg;
+ options_mask |= IPA_PROXY_OPT_BSC_IP;
break;
case 'g':
gprs_ns_ipaddr = optarg;
break;
case 's':
- log_set_use_color(stderr_target, 0);
+ log_set_use_color(osmo_stderr_target, 0);
break;
case 'T':
- log_set_print_timestamp(stderr_target, 1);
+ log_set_print_timestamp(osmo_stderr_target, 1);
break;
case 'e':
- log_set_log_level(stderr_target, atoi(optarg));
+ log_set_log_level(osmo_stderr_target, atoi(optarg));
+ break;
+ case '?':
+ if (optopt) {
+ printf("ERROR: missing mandatory argument "
+ "for `%s' option\n", argv[optind-1]);
+ } else {
+ printf("ERROR: unknown option `%s'\n",
+ argv[optind-1]);
+ }
+ print_usage();
+ print_help();
+ exit(EXIT_FAILURE);
break;
default:
/* ignore */
break;
}
}
+ if ((options_mask & (IPA_PROXY_OPT_LISTEN_IP | IPA_PROXY_OPT_BSC_IP))
+ != (IPA_PROXY_OPT_LISTEN_IP | IPA_PROXY_OPT_BSC_IP)) {
+ printf("ERROR: You have to specify `--listen' and `--bsc' "
+ "options at least.\n");
+ print_usage();
+ print_help();
+ exit(EXIT_FAILURE);
+ }
}
int main(int argc, char **argv)
{
int rc;
- listen_ipaddr = "192.168.100.11";
- bsc_ipaddr = "192.168.100.239";
-
tall_bsc_ctx = talloc_named_const(NULL, 1, "ipaccess-proxy");
- log_init(&log_info);
- stderr_target = log_target_create_stderr();
- log_add_target(stderr_target);
- log_set_all_filter(stderr_target, 1);
- log_parse_category_mask(stderr_target, "DINP:DMI");
+ osmo_init_logging(&log_info);
+ log_parse_category_mask(osmo_stderr_target, "DINP:DMI");
handle_options(argc, argv);
@@ -1366,8 +1194,9 @@ int main(int argc, char **argv)
signal(SIGUSR1, &signal_handler);
signal(SIGABRT, &signal_handler);
+ osmo_init_ignore_signals();
while (1) {
- bsc_select_main(0);
+ osmo_select_main(0);
}
}