mirror of git://git.sysmocom.de/ofono
709 lines
16 KiB
C
709 lines
16 KiB
C
/*
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* This file is part of oFono - Open Source Telephony
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*
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#define _GNU_SOURCE
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <sys/uio.h>
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#include <search.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <glib.h>
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#include <ofono/log.h>
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#include <ofono/modem.h>
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#include <ofono/gprs-context.h>
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#include <gisi/client.h>
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#include <gisi/iter.h>
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#include <gisi/pep.h>
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#include <gisi/pipe.h>
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#include "isimodem.h"
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#include "isiutil.h"
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#include "gpds.h"
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#include "debug.h"
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#define STATIC_IP_NETMASK "255.255.255.255"
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#define INVALID_ID (0xff)
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# if (INVALID_ID < GPDS_MAX_CONTEXT_COUNT)
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# error Uho! This should not happen!
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#endif
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struct gprs_context_data {
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GIsiClient *client;
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GIsiModem *idx;
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uint16_t gpds; /* GPDS object handle */
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GSList *contexts;
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};
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struct context_data {
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unsigned cid; /* oFono core context ID */
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struct ofono_gprs_context *driver;
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union {
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ofono_gprs_context_up_cb_t up_cb;
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ofono_gprs_context_cb_t down_cb;
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};
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void *data;
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GIsiPEP *pep;
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GIsiPipe *pipe;
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char apn[GPDS_MAX_APN_STRING_LENGTH + 1];
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char username[GPDS_MAX_USERNAME_LENGTH + 1];
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char password[GPDS_MAX_PASSWORD_LENGTH + 1];
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uint8_t handle; /* GPDS context ID */
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uint8_t type;
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};
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static struct context_data *find_context_by_cid(GSList *contexts,
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unsigned int cid)
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{
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GSList *m = NULL;
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for (m = contexts; m; m = m->next) {
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struct context_data *cd = m->data;
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if (cd->cid == cid)
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return cd;
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}
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return NULL;
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}
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static struct context_data *find_context_by_handle(GSList *contexts,
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uint8_t handle)
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{
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GSList *m = NULL;
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for (m = contexts; m; m = m->next) {
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struct context_data *cd = m->data;
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if (cd->handle == handle)
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return cd;
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}
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return NULL;
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}
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static void destroy_context(struct context_data *cd)
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{
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if (!cd)
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return;
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DBG("destroying %p (cid=%u)", cd, cd->cid);
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if (cd->pipe)
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g_isi_pipe_destroy(cd->pipe);
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if (cd->pep)
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g_isi_pep_destroy(cd->pep);
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g_free(cd);
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}
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static gboolean gprs_up_fail(struct context_data *cd)
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{
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struct ofono_gprs_context *gc = cd->driver;
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struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
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CALLBACK_WITH_FAILURE(cd->up_cb, NULL, 0, NULL, NULL, NULL, NULL,
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cd->data);
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gcd->contexts = g_slist_remove(gcd->contexts, cd);
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destroy_context(cd);
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return TRUE;
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}
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static gboolean gprs_down_fail(struct context_data *cd)
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{
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struct ofono_gprs_context *gc = cd->driver;
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struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
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CALLBACK_WITH_FAILURE(cd->down_cb, cd->data);
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gcd->contexts = g_slist_remove(gcd->contexts, cd);
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destroy_context(cd);
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return TRUE;
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}
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static gboolean check_resp(GIsiClient *client,
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const uint8_t *restrict msg, size_t len,
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uint_fast8_t cmd, struct context_data *cd)
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{
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if (!msg) {
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DBG("ISI client error: %d", g_isi_client_error(client));
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return FALSE;
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}
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if (len < 3) {
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DBG("truncated message");
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return FALSE;
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}
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if (msg[0] != cmd) {
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DBG("unexpected message ID: %s (0x%02"PRIx8")",
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gpds_message_id_name(msg[0]), msg[0]);
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return FALSE;
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}
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if ((cd->handle != INVALID_ID && msg[1] != cd->handle)
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|| (msg[1] == INVALID_ID)) {
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DBG("invalid context ID: 0x%02"PRIx8, msg[1]);
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return FALSE;
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}
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if (msg[2] != GPDS_OK) {
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DBG("context creation error: %s (0x%02"PRIx8")",
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gpds_status_name(msg[2]), msg[2]);
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if (len > 3)
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DBG(" fail cause: %s (0x%02"PRIx8")",
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gpds_isi_cause_name(msg[3]), msg[3]);
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return FALSE;
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}
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return TRUE;
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}
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static void activate_ind_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct gprs_context_data *gcd = opaque;
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struct context_data *cd;
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const unsigned char *msg = data;
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GIsiSubBlockIter iter;
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char ifname[IF_NAMESIZE];
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char *ip = NULL;
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char *pdns = NULL;
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char *sdns = NULL;
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const char *dns[3];
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if (!msg || len < 3 || msg[0] != GPDS_CONTEXT_ACTIVATE_IND)
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return;
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cd = find_context_by_handle(gcd->contexts, msg[1]);
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if (!cd) {
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DBG("unknown context: 0x%02"PRIx8, msg[1]);
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return;
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}
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for (g_isi_sb_iter_init(&iter, msg, len, 3);
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g_isi_sb_iter_is_valid(&iter);
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g_isi_sb_iter_next(&iter)) {
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uint8_t *addr_value = NULL;
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uint8_t addr_len = 0;
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switch (g_isi_sb_iter_get_id(&iter)) {
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/* TODO: IPv6 address support */
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case GPDS_PDP_ADDRESS_INFO:
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if (!g_isi_sb_iter_get_byte(&iter, &addr_len, 3)
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|| !g_isi_sb_iter_get_data(&iter,
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(void *)&addr_value, 4))
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goto error;
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ip = alloca(INET_ADDRSTRLEN);
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inet_ntop(AF_INET, (const void *)addr_value, ip,
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INET_ADDRSTRLEN);
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break;
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case GPDS_PDNS_ADDRESS_INFO:
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if (!g_isi_sb_iter_get_byte(&iter, &addr_len, 3)
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|| !g_isi_sb_iter_get_data(&iter,
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(void *)&addr_value, 4))
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break;
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pdns = alloca(INET_ADDRSTRLEN);
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inet_ntop(AF_INET, (const void *)addr_value, pdns,
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INET_ADDRSTRLEN);
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break;
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case GPDS_SDNS_ADDRESS_INFO:
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if (!g_isi_sb_iter_get_byte(&iter, &addr_len, 3)
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|| !g_isi_sb_iter_get_data(&iter,
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(void *)&addr_value, 4))
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break;
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sdns = alloca(INET_ADDRSTRLEN);
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inet_ntop(AF_INET, (const void *)addr_value, sdns,
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INET_ADDRSTRLEN);
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break;
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default:
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DBG("skipped sub-block: %s (%zu bytes)",
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gpds_subblock_name(g_isi_sb_iter_get_id(&iter)),
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g_isi_sb_iter_get_len(&iter));
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}
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}
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if (!g_isi_pep_get_ifname(cd->pep, ifname))
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goto error;
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dns[0] = pdns;
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dns[1] = sdns;
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dns[2] = 0;
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CALLBACK_WITH_SUCCESS(cd->up_cb, ifname, TRUE, (const char *)ip,
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STATIC_IP_NETMASK, NULL,
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dns, cd->data);
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return;
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error:
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gprs_up_fail(cd);
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}
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static void activate_fail_ind_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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const unsigned char *msg = data;
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struct gprs_context_data *gcd = opaque;
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struct context_data *cd;
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if (!msg || len < 3 || msg[0] != GPDS_CONTEXT_ACTIVATE_FAIL_IND)
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return;
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cd = find_context_by_handle(gcd->contexts, msg[1]);
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if (cd == NULL) {
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DBG("unknown context: 0x%02"PRIx8, msg[1]);
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return;
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}
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gprs_up_fail(cd);
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}
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static gboolean context_activate_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct context_data *cd = opaque;
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if (!check_resp(client, data, len, GPDS_CONTEXT_ACTIVATE_RESP, cd))
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return gprs_up_fail(cd);
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/* TODO: Add timeout here in case indications never come */
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return TRUE;
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}
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static void send_context_activate(GIsiClient *client, void *opaque)
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{
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struct context_data *cd = opaque;
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const unsigned char msg[] = {
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GPDS_CONTEXT_ACTIVATE_REQ,
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cd->handle, /* context ID */
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0, /* sub blocks */
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};
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if (g_isi_request_make(client, msg, sizeof(msg), GPDS_TIMEOUT,
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context_activate_cb, cd))
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g_isi_pipe_start(cd->pipe);
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else
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gprs_up_fail(cd);
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}
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static gboolean context_auth_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct context_data *cd = opaque;
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if (!check_resp(client, data, len, GPDS_CONTEXT_AUTH_RESP, cd))
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return gprs_up_fail(cd);
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send_context_activate(client, cd);
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return TRUE;
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}
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static void send_context_authenticate(GIsiClient *client, void *opaque)
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{
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struct context_data *cd = opaque;
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size_t username_len = strlen(cd->username);
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size_t password_len = strlen(cd->password);
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const unsigned char top[] = {
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GPDS_CONTEXT_AUTH_REQ,
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cd->handle,
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2, /* sub blocks */
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GPDS_USER_NAME_INFO,
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3 + username_len + 3,
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username_len,
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/* Username goes here */
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};
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const unsigned char bottom[] = {
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GPDS_PASSWORD_INFO,
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3 + password_len + 3,
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password_len,
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/* Password goes here */
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};
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const struct iovec iov[4] = {
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{ (uint8_t *)top, sizeof(top) },
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{ cd->username, username_len },
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{ (uint8_t *)bottom, sizeof(bottom) },
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{ cd->password, password_len },
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};
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if (!g_isi_request_vmake(client, iov, 4, GPDS_TIMEOUT,
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context_auth_cb, cd))
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gprs_up_fail(cd);
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}
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static gboolean context_conf_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct context_data *cd = opaque;
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if (!check_resp(client, data, len, GPDS_CONTEXT_CONFIGURE_RESP, cd))
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return gprs_up_fail(cd);
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if (cd->username[0] != '\0')
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send_context_authenticate(client, cd);
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else
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send_context_activate(client, cd);
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return TRUE;
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}
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static gboolean link_conf_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct context_data *cd = opaque;
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size_t apn_len = strlen(cd->apn);
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const unsigned char msg[] = {
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GPDS_CONTEXT_CONFIGURE_REQ,
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cd->handle, /* context ID */
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cd->type, /* PDP type */
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GPDS_CONT_TYPE_NORMAL,
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cd->handle, /* primary context ID */
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0x00, /* filler */
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2, /* sub blocks */
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GPDS_DNS_ADDRESS_REQ_INFO,
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4, /* subblock length */
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0, 0, /* padding */
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GPDS_APN_INFO,
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3 + apn_len + 3,
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apn_len,
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};
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const struct iovec iov[2] = {
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{ (uint8_t *)msg, sizeof(msg) },
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{ cd->apn, apn_len },
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};
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if (!check_resp(client, data, len, GPDS_LL_CONFIGURE_RESP, cd))
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return gprs_up_fail(cd);
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if (!g_isi_request_vmake(client, iov, 2, GPDS_TIMEOUT,
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context_conf_cb, cd))
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return gprs_up_fail(cd);
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return TRUE;
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}
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static gboolean create_context_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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const unsigned char *resp = data;
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struct context_data *cd = opaque;
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unsigned char msg[] = {
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GPDS_LL_CONFIGURE_REQ,
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0x00, /* GPDS context ID, added later */
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g_isi_pipe_get_handle(cd->pipe),
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GPDS_LL_PLAIN, /* link type */
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};
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if (!check_resp(client, data, len, GPDS_CONTEXT_ID_CREATE_RESP, cd))
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return gprs_up_fail(cd);
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cd->handle = msg[1] = resp[1];
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if (!g_isi_request_make(client, msg, sizeof(msg), GPDS_TIMEOUT,
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link_conf_cb, cd))
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return gprs_up_fail(cd);
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/* TODO: send context configuration at the same time? */
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return TRUE;
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}
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static void create_pipe_cb(GIsiPipe *pipe)
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{
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struct context_data *cd = g_isi_pipe_get_userdata(pipe);
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struct ofono_gprs_context *gc = cd->driver;
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struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
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const unsigned char msg[] = {
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GPDS_CONTEXT_ID_CREATE_REQ,
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};
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if (!g_isi_request_make(gcd->client, msg, sizeof(msg), GPDS_TIMEOUT,
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create_context_cb, cd))
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gprs_up_fail(cd);
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}
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static void deactivate_ind_cb(GIsiClient *client,
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const void *restrict data, size_t len,
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uint16_t object, void *opaque)
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{
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struct gprs_context_data *gcd = opaque;
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struct context_data *cd;
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const unsigned char *msg = data;
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if (!msg || len < 3 || msg[0] != GPDS_CONTEXT_DEACTIVATE_IND)
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return;
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cd = find_context_by_handle(gcd->contexts, msg[1]);
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if (cd == NULL) {
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DBG("unknown context: 0x%02"PRIx8, msg[1]);
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return;
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}
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DBG("context deactivated: %s (0x%02"PRIx8")",
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gpds_isi_cause_name(msg[3]), msg[3]);
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ofono_gprs_context_deactivated(cd->driver, cd->cid);
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gcd->contexts = g_slist_remove(gcd->contexts, cd);
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destroy_context(cd);
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}
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static void isi_gprs_activate_primary(struct ofono_gprs_context *gc,
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const struct ofono_gprs_primary_context *ctx,
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ofono_gprs_context_up_cb_t cb, void *data)
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{
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struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
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struct context_data *cd = g_try_new0(struct context_data, 1);
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struct context_data *old = NULL;
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if (!cd)
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return;
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cd->cid = ctx->cid;
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cd->driver = gc;
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cd->up_cb = cb;
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cd->data = data;
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cd->pep = NULL;
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cd->pipe = NULL;
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cd->handle = INVALID_ID;
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cd->type = GPDS_PDP_TYPE_IPV4;
|
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|
|
old = find_context_by_cid(gcd->contexts, ctx->cid);
|
|
if (old) {
|
|
DBG("duplicate context: %u", ctx->cid);
|
|
goto error;
|
|
}
|
|
|
|
gcd->contexts = g_slist_append(gcd->contexts, cd);
|
|
|
|
if (strlen(ctx->apn) >= GPDS_MAX_APN_STRING_LENGTH
|
|
|| strlen(ctx->username) >= GPDS_MAX_USERNAME_LENGTH
|
|
|| strlen(ctx->password) >= GPDS_MAX_PASSWORD_LENGTH)
|
|
goto error;
|
|
|
|
strncpy(cd->apn, ctx->apn, GPDS_MAX_APN_STRING_LENGTH);
|
|
cd->apn[GPDS_MAX_APN_STRING_LENGTH] = '\0';
|
|
|
|
strncpy(cd->username, ctx->username, GPDS_MAX_USERNAME_LENGTH);
|
|
cd->username[GPDS_MAX_USERNAME_LENGTH] = '\0';
|
|
|
|
strncpy(cd->password, ctx->password, GPDS_MAX_PASSWORD_LENGTH);
|
|
cd->username[GPDS_MAX_PASSWORD_LENGTH] = '\0';
|
|
|
|
cd->pep = g_isi_pep_create(gcd->idx, NULL, NULL);
|
|
if (cd->pep == NULL)
|
|
goto error;
|
|
|
|
cd->pipe = g_isi_pipe_create(gcd->idx, create_pipe_cb,
|
|
g_isi_pep_get_object(cd->pep),
|
|
gcd->gpds, PN_PEP_TYPE_GPRS,
|
|
PN_PEP_TYPE_GPRS);
|
|
if (cd->pipe == NULL)
|
|
goto error;
|
|
|
|
g_isi_pipe_set_userdata(cd->pipe, cd);
|
|
return;
|
|
|
|
error:
|
|
gprs_up_fail(cd);
|
|
}
|
|
|
|
static gboolean context_deactivate_cb(GIsiClient *client,
|
|
const void *restrict data, size_t len,
|
|
uint16_t object,
|
|
void *opaque)
|
|
{
|
|
struct context_data *cd = opaque;
|
|
struct ofono_gprs_context *gc = cd->driver;
|
|
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
|
|
|
|
if (!check_resp(client, data, len, GPDS_CONTEXT_DEACTIVATE_RESP, cd))
|
|
return gprs_down_fail(cd);
|
|
|
|
gcd->contexts = g_slist_remove(gcd->contexts, cd);
|
|
|
|
CALLBACK_WITH_SUCCESS(cd->down_cb, cd->data);
|
|
destroy_context(cd);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void isi_gprs_deactivate_primary(struct ofono_gprs_context *gc,
|
|
unsigned int cid,
|
|
ofono_gprs_context_cb_t cb, void *data)
|
|
{
|
|
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
|
|
struct context_data *cd;
|
|
|
|
unsigned char msg[] = {
|
|
GPDS_CONTEXT_DEACTIVATE_REQ,
|
|
0x00, /* GPDS context ID, added later */
|
|
};
|
|
|
|
cd = find_context_by_cid(gcd->contexts, cid);
|
|
if (!cd) {
|
|
DBG("unknown context: %u", cid);
|
|
return;
|
|
}
|
|
|
|
cd->down_cb = cb;
|
|
cd->data = data;
|
|
|
|
msg[1] = cd->handle;
|
|
|
|
if (!g_isi_request_make(gcd->client, msg, sizeof(msg), GPDS_TIMEOUT,
|
|
context_deactivate_cb, cd))
|
|
gprs_down_fail(cd);
|
|
}
|
|
|
|
static void gpds_ctx_reachable_cb(GIsiClient *client, gboolean alive,
|
|
uint16_t object,
|
|
void *opaque)
|
|
{
|
|
struct ofono_gprs_context *gc = opaque;
|
|
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
|
|
const char *debug;
|
|
|
|
if (!alive) {
|
|
DBG("unable to bootstrap gprs context driver");
|
|
return;
|
|
}
|
|
|
|
DBG("%s (v%03d.%03d) for PDP contexts",
|
|
pn_resource_name(g_isi_client_resource(client)),
|
|
g_isi_version_major(client),
|
|
g_isi_version_minor(client));
|
|
|
|
gcd->gpds = object;
|
|
|
|
debug = getenv("OFONO_ISI_DEBUG");
|
|
if (debug && (strcmp(debug, "all") == 0 || strcmp(debug, "gpds") == 0))
|
|
g_isi_client_set_debug(gcd->client, gpds_debug, NULL);
|
|
|
|
g_isi_subscribe(client, GPDS_CONTEXT_ACTIVATE_IND,
|
|
activate_ind_cb, gcd);
|
|
g_isi_subscribe(client, GPDS_CONTEXT_ACTIVATE_FAIL_IND,
|
|
activate_fail_ind_cb, gcd);
|
|
g_isi_subscribe(client, GPDS_CONTEXT_DEACTIVATE_IND,
|
|
deactivate_ind_cb, gcd);
|
|
}
|
|
|
|
static int isi_gprs_context_probe(struct ofono_gprs_context *gc,
|
|
unsigned int vendor, void *user)
|
|
{
|
|
GIsiModem *idx = user;
|
|
struct gprs_context_data *gcd = g_try_new0(struct gprs_context_data, 1);
|
|
|
|
if (!gcd)
|
|
return -ENOMEM;
|
|
|
|
gcd->client = g_isi_client_create(idx, PN_GPDS);
|
|
if (!gcd->client) {
|
|
g_free(gcd);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ofono_gprs_context_set_data(gc, gcd);
|
|
|
|
gcd->idx = idx;
|
|
gcd->contexts = NULL;
|
|
|
|
g_isi_verify(gcd->client, gpds_ctx_reachable_cb, gc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void isi_gprs_context_remove(struct ofono_gprs_context *gc)
|
|
{
|
|
struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc);
|
|
GSList *m;
|
|
|
|
ofono_gprs_context_set_data(gc, NULL);
|
|
|
|
for (m = gcd->contexts; m; m = m->next)
|
|
destroy_context(m->data);
|
|
|
|
g_slist_free(gcd->contexts);
|
|
|
|
if (gcd->client)
|
|
g_isi_client_destroy(gcd->client);
|
|
|
|
g_free(gcd);
|
|
}
|
|
|
|
static struct ofono_gprs_context_driver driver = {
|
|
.name = "isimodem",
|
|
.probe = isi_gprs_context_probe,
|
|
.remove = isi_gprs_context_remove,
|
|
.activate_primary = isi_gprs_activate_primary,
|
|
.deactivate_primary = isi_gprs_deactivate_primary,
|
|
};
|
|
|
|
void isi_gprs_context_init()
|
|
{
|
|
ofono_gprs_context_driver_register(&driver);
|
|
}
|
|
|
|
void isi_gprs_context_exit()
|
|
{
|
|
ofono_gprs_context_driver_unregister(&driver);
|
|
}
|