コード例 #1
0
ファイル: ipmiSDbus.c プロジェクト: causten/samples
static int send_ipmi_message(unsigned char seq, unsigned char netfn, unsigned char cmd, unsigned char *buf, unsigned char len) {

    sd_bus_error error = SD_BUS_ERROR_NULL;
    sd_bus_message *m = NULL;
    sd_bus *bus = NULL;
    sd_bus_message *reply = NULL;
    const char *path;
    int r, pty;



    /* Connect to the session bus */
    // r = sd_bus_open_user(&bus);
    r = sd_bus_open_system(&bus);

    if (r < 0) {
        fprintf(stderr, "Failed to connect to system bus: %s\n", strerror(-r));
        return -1;
    }

    r = sd_bus_message_new_method_call(bus,&m,INT,OBJ,INT,"sendMessage");
    if (r < 0) {
        fprintf(stderr, "Failed to add the method object: %s\n", strerror(-r));
        goto finish;
    }



    // Add the bytes needed for the method to be called
    r = sd_bus_message_append(m, "yyy", seq, netfn, cmd);
    if (r < 0) {
        fprintf(stderr, "Failed add the netfn and others : %s\n", strerror(-r));
        goto finish;
    }

    r = sd_bus_message_append_array(m, 'y', buf, 6);
    if (r < 0) {
        fprintf(stderr, "Failed to add the string of response bytes: %s\n", strerror(-r));
        goto finish;
    }



    // Call the IPMI responder on the bus so the message can be sent to the CEC
    r = sd_bus_call(bus, m, 0, &error, &reply);
    if (r < 0) {
        fprintf(stderr, "Failed to call the method: %s", strerror(-r));
        goto finish;
    }

    r = sd_bus_message_read(reply, "x", &pty);
    printf("RC from the ipmi dbus method :%d \n", pty);
    if (r < 0) {
       fprintf(stderr, "Failed to get a rc from the method: %s\n", strerror(-r));
       goto finish;
    }


finish:
    // since we used the _new_ above for the bus object
    // we need to remove it from the bus.  Proably could
    // just init something once and not need this free.
    sd_bus_unref(bus);

    return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;

}
コード例 #2
0
ファイル: test-bus-gvariant.c プロジェクト: AOSC-Dev/systemd
static void test_marshal(void) {
        _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *n = NULL;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        _cleanup_free_ void *blob;
        size_t sz;
        int r;

        r = sd_bus_open_system(&bus);
        if (r < 0)
                exit(EXIT_TEST_SKIP);

        bus->message_version = 2; /* dirty hack to enable gvariant */

        assert_se(sd_bus_message_new_method_call(bus, &m, "a.service.name", "/an/object/path/which/is/really/really/long/so/that/we/hit/the/eight/bit/boundary/by/quite/some/margin/to/test/this/stuff/that/it/really/works", "an.interface.name", "AMethodName") >= 0);

        assert_cc(sizeof(struct bus_header) == 16);

        assert_se(sd_bus_message_append(m,
                                        "a(usv)", 3,
                                        4711, "first-string-parameter", "(st)", "X", (uint64_t) 1111,
                                        4712, "second-string-parameter", "(a(si))", 2, "Y", 5, "Z", 6,
                                        4713, "third-string-parameter", "(uu)", 1, 2) >= 0);

        assert_se(bus_message_seal(m, 4711, 0) >= 0);

#ifdef HAVE_GLIB
        {
                GVariant *v;
                char *t;

#if !defined(GLIB_VERSION_2_36)
                g_type_init();
#endif

                v = g_variant_new_from_data(G_VARIANT_TYPE("(yyyyuta{tv})"), m->header, sizeof(struct bus_header) + m->fields_size, false, NULL, NULL);
                assert_se(g_variant_is_normal_form(v));
                t = g_variant_print(v, TRUE);
                printf("%s\n", t);
                g_free(t);
                g_variant_unref(v);

                v = g_variant_new_from_data(G_VARIANT_TYPE("(a(usv))"), m->body.data, m->user_body_size, false, NULL, NULL);
                assert_se(g_variant_is_normal_form(v));
                t = g_variant_print(v, TRUE);
                printf("%s\n", t);
                g_free(t);
                g_variant_unref(v);
        }
#endif

        assert_se(bus_message_dump(m, NULL, BUS_MESSAGE_DUMP_WITH_HEADER) >= 0);

        assert_se(bus_message_get_blob(m, &blob, &sz) >= 0);

#ifdef HAVE_GLIB
        {
                GVariant *v;
                char *t;

                v = g_variant_new_from_data(G_VARIANT_TYPE("(yyyyuta{tv}v)"), blob, sz, false, NULL, NULL);
                assert_se(g_variant_is_normal_form(v));
                t = g_variant_print(v, TRUE);
                printf("%s\n", t);
                g_free(t);
                g_variant_unref(v);
        }
#endif

        assert_se(bus_message_from_malloc(bus, blob, sz, NULL, 0, NULL, &n) >= 0);
        blob = NULL;

        assert_se(bus_message_dump(n, NULL, BUS_MESSAGE_DUMP_WITH_HEADER) >= 0);

        m = sd_bus_message_unref(m);

        assert_se(sd_bus_message_new_method_call(bus, &m, "a.x", "/a/x", "a.x", "Ax") >= 0);

        assert_se(sd_bus_message_append(m, "as", 0) >= 0);

        assert_se(bus_message_seal(m, 4712, 0) >= 0);
        assert_se(bus_message_dump(m, NULL, BUS_MESSAGE_DUMP_WITH_HEADER) >= 0);
}
コード例 #3
0
static int evcat_new(Evcat **out) {
        _cleanup_(evcat_freep) Evcat *e = NULL;
        int r;

        assert(out);

        e = new0(Evcat, 1);
        if (!e)
                return log_oom();

        r = sd_pid_get_session(getpid(), &e->session);
        if (r < 0)
                return log_error_errno(r, "Cannot retrieve logind session: %m");

        r = sd_session_get_seat(e->session, &e->seat);
        if (r < 0)
                return log_error_errno(r, "Cannot retrieve seat of logind session: %m");

        e->managed = is_managed(e->session);

        r = sd_event_default(&e->event);
        if (r < 0)
                return r;

        r = sd_bus_open_system(&e->bus);
        if (r < 0)
                return r;

        r = sd_bus_attach_event(e->bus, e->event, SD_EVENT_PRIORITY_NORMAL);
        if (r < 0)
                return r;

        r = sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1);
        if (r < 0)
                return r;

        r = sd_event_add_signal(e->event, NULL, SIGTERM, NULL, NULL);
        if (r < 0)
                return r;

        r = sd_event_add_signal(e->event, NULL, SIGINT, NULL, NULL);
        if (r < 0)
                return r;

        r = sysview_context_new(&e->sysview,
                                SYSVIEW_CONTEXT_SCAN_LOGIND |
                                SYSVIEW_CONTEXT_SCAN_EVDEV,
                                e->event,
                                e->bus,
                                NULL);
        if (r < 0)
                return r;

        r = idev_context_new(&e->idev, e->event, e->bus);
        if (r < 0)
                return r;

        *out = e;
        e = NULL;
        return 0;
}
コード例 #4
0
ファイル: nss-resolve.c プロジェクト: Keruspe/systemd
enum nss_status _nss_resolve_gethostbyname3_r(
                const char *name,
                int af,
                struct hostent *result,
                char *buffer, size_t buflen,
                int *errnop, int *h_errnop,
                int32_t *ttlp,
                char **canonp) {

        _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        char *r_name, *r_aliases, *r_addr, *r_addr_list;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        enum nss_status ret = NSS_STATUS_UNAVAIL;
        size_t l, idx, ms, alen;
        const char *canonical;
        int c, r, i = 0;

        PROTECT_ERRNO;
        BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);

        assert(name);
        assert(result);
        assert(buffer);
        assert(errnop);
        assert(h_errnop);

        if (af == AF_UNSPEC)
                af = AF_INET;

        if (!IN_SET(af, AF_INET, AF_INET6)) {
                r = -EAFNOSUPPORT;
                goto fail;
        }

        if (avoid_deadlock()) {
                r = -EDEADLK;
                goto fail;
        }

        r = sd_bus_open_system(&bus);
        if (r < 0)
                goto fail;

        r = sd_bus_message_new_method_call(
                        bus,
                        &req,
                        "org.freedesktop.resolve1",
                        "/org/freedesktop/resolve1",
                        "org.freedesktop.resolve1.Manager",
                        "ResolveHostname");
        if (r < 0)
                goto fail;

        r = sd_bus_message_set_auto_start(req, false);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "isit", 0, name, af, (uint64_t) 0);
        if (r < 0)
                goto fail;

        r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
        if (r < 0) {
                if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN") ||
                    !bus_error_shall_fallback(&error))
                        goto not_found;

                goto fail;
        }

        c = count_addresses(reply, af, &canonical);
        if (c < 0) {
                r = c;
                goto fail;
        }
        if (c == 0)
                goto not_found;

        if (isempty(canonical))
                canonical = name;

        alen = FAMILY_ADDRESS_SIZE(af);
        l = strlen(canonical);

        ms = ALIGN(l+1) + c * ALIGN(alen) + (c+2) * sizeof(char*);

        if (buflen < ms) {
                *errnop = ERANGE;
                *h_errnop = NETDB_INTERNAL;
                return NSS_STATUS_TRYAGAIN;
        }

        /* First, append name */
        r_name = buffer;
        memcpy(r_name, canonical, l+1);
        idx = ALIGN(l+1);

        /* Second, create empty aliases array */
        r_aliases = buffer + idx;
        ((char**) r_aliases)[0] = NULL;
        idx += sizeof(char*);

        /* Third, append addresses */
        r_addr = buffer + idx;

        r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
        if (r < 0)
                goto fail;

        while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
                int ifindex, family;
                const void *a;
                size_t sz;

                r = sd_bus_message_read(reply, "ii", &ifindex, &family);
                if (r < 0)
                        goto fail;

                if (ifindex < 0) {
                        r = -EINVAL;
                        goto fail;
                }

                r = sd_bus_message_read_array(reply, 'y', &a, &sz);
                if (r < 0)
                        goto fail;

                r = sd_bus_message_exit_container(reply);
                if (r < 0)
                        goto fail;

                if (family != af)
                        continue;

                if (sz != alen) {
                        r = -EINVAL;
                        goto fail;
                }

                memcpy(r_addr + i*ALIGN(alen), a, alen);
                i++;
        }
        if (r < 0)
                goto fail;

        assert(i == c);
        idx += c * ALIGN(alen);

        /* Fourth, append address pointer array */
        r_addr_list = buffer + idx;
        for (i = 0; i < c; i++)
                ((char**) r_addr_list)[i] = r_addr + i*ALIGN(alen);

        ((char**) r_addr_list)[i] = NULL;
        idx += (c+1) * sizeof(char*);

        assert(idx == ms);

        result->h_name = r_name;
        result->h_aliases = (char**) r_aliases;
        result->h_addrtype = af;
        result->h_length = alen;
        result->h_addr_list = (char**) r_addr_list;

        if (ttlp)
                *ttlp = 0;

        if (canonp)
                *canonp = r_name;

        /* Explicitly reset both *h_errnop and h_errno to work around
         * https://bugzilla.redhat.com/show_bug.cgi?id=1125975 */
        *h_errnop = NETDB_SUCCESS;
        h_errno = 0;

        return NSS_STATUS_SUCCESS;

fail:
        *errnop = -r;
        *h_errnop = NO_RECOVERY;
        return ret;

not_found:
        *h_errnop = HOST_NOT_FOUND;
        return NSS_STATUS_NOTFOUND;
}
コード例 #5
0
ファイル: nss-resolve.c プロジェクト: Keruspe/systemd
enum nss_status _nss_resolve_gethostbyaddr2_r(
                const void* addr, socklen_t len,
                int af,
                struct hostent *result,
                char *buffer, size_t buflen,
                int *errnop, int *h_errnop,
                int32_t *ttlp) {

        _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        char *r_name, *r_aliases, *r_addr, *r_addr_list;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        enum nss_status ret = NSS_STATUS_UNAVAIL;
        unsigned c = 0, i = 0;
        size_t ms = 0, idx;
        const char *n;
        int r, ifindex;

        PROTECT_ERRNO;
        BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);

        assert(addr);
        assert(result);
        assert(buffer);
        assert(errnop);
        assert(h_errnop);

        if (!IN_SET(af, AF_INET, AF_INET6)) {
                *errnop = EAFNOSUPPORT;
                *h_errnop = NO_DATA;
                return NSS_STATUS_UNAVAIL;
        }

        if (len != FAMILY_ADDRESS_SIZE(af)) {
                *errnop = EINVAL;
                *h_errnop = NO_RECOVERY;
                return NSS_STATUS_UNAVAIL;
        }

        if (avoid_deadlock()) {
                r = -EDEADLK;
                goto fail;
        }

        r = sd_bus_open_system(&bus);
        if (r < 0)
                goto fail;

        r = sd_bus_message_new_method_call(
                        bus,
                        &req,
                        "org.freedesktop.resolve1",
                        "/org/freedesktop/resolve1",
                        "org.freedesktop.resolve1.Manager",
                        "ResolveAddress");
        if (r < 0)
                goto fail;

        r = sd_bus_message_set_auto_start(req, false);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "ii", 0, af);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append_array(req, 'y', addr, len);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "t", (uint64_t) 0);
        if (r < 0)
                goto fail;

        r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
        if (r < 0) {
                if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN") ||
                    !bus_error_shall_fallback(&error))
                        goto not_found;

                goto fail;
        }

        r = sd_bus_message_enter_container(reply, 'a', "(is)");
        if (r < 0)
                goto fail;

        while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {

                if (ifindex < 0) {
                        r = -EINVAL;
                        goto fail;
                }

                c++;
                ms += ALIGN(strlen(n) + 1);
        }
        if (r < 0)
                goto fail;

        r = sd_bus_message_rewind(reply, false);
        if (r < 0)
                return r;

        if (c <= 0)
                goto not_found;

        ms += ALIGN(len) +              /* the address */
              2 * sizeof(char*) +       /* pointers to the address, plus trailing NULL */
              c * sizeof(char*);        /* pointers to aliases, plus trailing NULL */

        if (buflen < ms) {
                *errnop = ERANGE;
                *h_errnop = NETDB_INTERNAL;
                return NSS_STATUS_TRYAGAIN;
        }

        /* First, place address */
        r_addr = buffer;
        memcpy(r_addr, addr, len);
        idx = ALIGN(len);

        /* Second, place address list */
        r_addr_list = buffer + idx;
        ((char**) r_addr_list)[0] = r_addr;
        ((char**) r_addr_list)[1] = NULL;
        idx += sizeof(char*) * 2;

        /* Third, reserve space for the aliases array */
        r_aliases = buffer + idx;
        idx += sizeof(char*) * c;

        /* Fourth, place aliases */
        i = 0;
        r_name = buffer + idx;
        while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {
                char *p;
                size_t l;

                l = strlen(n);
                p = buffer + idx;
                memcpy(p, n, l+1);

                if (i > 0)
                        ((char**) r_aliases)[i-1] = p;
                i++;

                idx += ALIGN(l+1);
        }
        if (r < 0)
                goto fail;

        ((char**) r_aliases)[c-1] = NULL;
        assert(idx == ms);

        result->h_name = r_name;
        result->h_aliases = (char**) r_aliases;
        result->h_addrtype = af;
        result->h_length = len;
        result->h_addr_list = (char**) r_addr_list;

        if (ttlp)
                *ttlp = 0;

        /* Explicitly reset both *h_errnop and h_errno to work around
         * https://bugzilla.redhat.com/show_bug.cgi?id=1125975 */
        *h_errnop = NETDB_SUCCESS;
        h_errno = 0;

        return NSS_STATUS_SUCCESS;

fail:
        *errnop = -r;
        *h_errnop = NO_RECOVERY;
        return ret;

not_found:
        *h_errnop = HOST_NOT_FOUND;
        return NSS_STATUS_NOTFOUND;
}
コード例 #6
0
ファイル: nss-resolve.c プロジェクト: Keruspe/systemd
enum nss_status _nss_resolve_gethostbyname4_r(
                const char *name,
                struct gaih_addrtuple **pat,
                char *buffer, size_t buflen,
                int *errnop, int *h_errnop,
                int32_t *ttlp) {

        _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        struct gaih_addrtuple *r_tuple, *r_tuple_first = NULL;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        enum nss_status ret = NSS_STATUS_UNAVAIL;
        const char *canonical = NULL;
        size_t l, ms, idx;
        char *r_name;
        int c, r, i = 0;

        PROTECT_ERRNO;
        BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);

        assert(name);
        assert(pat);
        assert(buffer);
        assert(errnop);
        assert(h_errnop);

        if (avoid_deadlock()) {
                r = -EDEADLK;
                goto fail;
        }

        r = sd_bus_open_system(&bus);
        if (r < 0)
                goto fail;

        r = sd_bus_message_new_method_call(
                        bus,
                        &req,
                        "org.freedesktop.resolve1",
                        "/org/freedesktop/resolve1",
                        "org.freedesktop.resolve1.Manager",
                        "ResolveHostname");
        if (r < 0)
                goto fail;

        r = sd_bus_message_set_auto_start(req, false);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "isit", 0, name, AF_UNSPEC, (uint64_t) 0);
        if (r < 0)
                goto fail;

        r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
        if (r < 0) {
                if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN") ||
                    !bus_error_shall_fallback(&error))
                        goto not_found;

                /* Return NSS_STATUS_UNAVAIL when communication with systemd-resolved fails,
                   allowing falling back to other nss modules. Treat all other error conditions as
                   NOTFOUND. This includes DNSSEC errors and suchlike. (We don't use UNAVAIL in this
                   case so that the nsswitch.conf configuration can distuingish such executed but
                   negative replies from complete failure to talk to resolved). */
                goto fail;
        }

        c = count_addresses(reply, AF_UNSPEC, &canonical);
        if (c < 0) {
                r = c;
                goto fail;
        }
        if (c == 0)
                goto not_found;

        if (isempty(canonical))
                canonical = name;

        l = strlen(canonical);
        ms = ALIGN(l+1) + ALIGN(sizeof(struct gaih_addrtuple)) * c;
        if (buflen < ms) {
                *errnop = ERANGE;
                *h_errnop = NETDB_INTERNAL;
                return NSS_STATUS_TRYAGAIN;
        }

        /* First, append name */
        r_name = buffer;
        memcpy(r_name, canonical, l+1);
        idx = ALIGN(l+1);

        /* Second, append addresses */
        r_tuple_first = (struct gaih_addrtuple*) (buffer + idx);

        r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
        if (r < 0)
                goto fail;

        while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
                int family, ifindex;
                const void *a;
                size_t sz;

                assert_cc(sizeof(int32_t) == sizeof(int));

                r = sd_bus_message_read(reply, "ii", &ifindex, &family);
                if (r < 0)
                        goto fail;

                if (ifindex < 0) {
                        r = -EINVAL;
                        goto fail;
                }

                r = sd_bus_message_read_array(reply, 'y', &a, &sz);
                if (r < 0)
                        goto fail;

                r = sd_bus_message_exit_container(reply);
                if (r < 0)
                        goto fail;

                if (!IN_SET(family, AF_INET, AF_INET6))
                        continue;

                if (sz != FAMILY_ADDRESS_SIZE(family)) {
                        r = -EINVAL;
                        goto fail;
                }

                r_tuple = (struct gaih_addrtuple*) (buffer + idx);
                r_tuple->next = i == c-1 ? NULL : (struct gaih_addrtuple*) ((char*) r_tuple + ALIGN(sizeof(struct gaih_addrtuple)));
                r_tuple->name = r_name;
                r_tuple->family = family;
                r_tuple->scopeid = ifindex_to_scopeid(family, a, ifindex);
                memcpy(r_tuple->addr, a, sz);

                idx += ALIGN(sizeof(struct gaih_addrtuple));
                i++;
        }
        if (r < 0)
                goto fail;

        assert(i == c);
        assert(idx == ms);

        if (*pat)
                **pat = *r_tuple_first;
        else
                *pat = r_tuple_first;

        if (ttlp)
                *ttlp = 0;

        /* Explicitly reset both *h_errnop and h_errno to work around
         * https://bugzilla.redhat.com/show_bug.cgi?id=1125975 */
        *h_errnop = NETDB_SUCCESS;
        h_errno = 0;

        return NSS_STATUS_SUCCESS;

fail:
        *errnop = -r;
        *h_errnop = NO_RECOVERY;
        return ret;

not_found:
        *h_errnop = HOST_NOT_FOUND;
        return NSS_STATUS_NOTFOUND;
}
コード例 #7
0
ファイル: modeset.c プロジェクト: AlexBaranosky/systemd
static int modeset_new(Modeset **out) {
        _cleanup_(modeset_freep) Modeset *m = NULL;
        int r;

        assert(out);

        m = new0(Modeset, 1);
        if (!m)
                return log_oom();

        r = sd_pid_get_session(getpid(), &m->session);
        if (r < 0)
                return log_error_errno(r, "Cannot retrieve logind session: %m");

        r = sd_session_get_seat(m->session, &m->seat);
        if (r < 0)
                return log_error_errno(r, "Cannot retrieve seat of logind session: %m");

        m->my_tty = is_my_tty(m->session);
        m->managed = m->my_tty && geteuid() > 0;

        m->r = rand() % 0xff;
        m->g = rand() % 0xff;
        m->b = rand() % 0xff;
        m->r_up = m->g_up = m->b_up = true;

        r = sd_event_default(&m->event);
        if (r < 0)
                return r;

        r = sd_bus_open_system(&m->bus);
        if (r < 0)
                return r;

        r = sd_bus_attach_event(m->bus, m->event, SD_EVENT_PRIORITY_NORMAL);
        if (r < 0)
                return r;

        r = sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1);
        if (r < 0)
                return r;

        r = sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
        if (r < 0)
                return r;

        r = sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
        if (r < 0)
                return r;

        r = sd_event_add_exit(m->event, &m->exit_src, modeset_exit_fn, m);
        if (r < 0)
                return r;

        /* schedule before sd-bus close */
        r = sd_event_source_set_priority(m->exit_src, -10);
        if (r < 0)
                return r;

        r = sysview_context_new(&m->sysview,
                                SYSVIEW_CONTEXT_SCAN_LOGIND |
                                SYSVIEW_CONTEXT_SCAN_DRM,
                                m->event,
                                m->bus,
                                NULL);
        if (r < 0)
                return r;

        r = grdev_context_new(&m->grdev, m->event, m->bus);
        if (r < 0)
                return r;

        *out = m;
        m = NULL;
        return 0;
}
コード例 #8
0
/*
 * First of all, creates a transaction;
 * then reads the newly created bus path,
 * adds a match to the bus to wait until installation is really finished before notifying the user.
 * finally, calls InstallFiles method, and processes the bus while finished == 0.
 */
void *install_package(void *str) {
    sd_bus_error error = SD_BUS_ERROR_NULL;
    sd_bus_message *mess = NULL;
    sd_bus *install_bus = NULL;
    const char *path;
    int r, inhibit_fd = -1, finished = 0;
    
    r = sd_bus_open_system(&install_bus);
    if (r < 0) {
        print_and_warn(strerror(-r), ERR_LINE);
        goto finish;
    }
    INFO("calling CreateTransaction on bus.");
    r = sd_bus_call_method(install_bus,
                           "org.freedesktop.PackageKit",
                           "/org/freedesktop/PackageKit",
                           "org.freedesktop.PackageKit",
                           "CreateTransaction",
                           &error,
                           &mess,
                           NULL);
    if (r < 0) {
        print_and_warn(error.message, ERR_LINE);
        goto finish;
    }
    if (config.inhibit) {
        inhibit_fd = inhibit_suspend("Package installation...");
    }
    sd_bus_message_read(mess, "o", &path);
    r = sd_bus_add_match(install_bus, NULL, "type='signal',interface='org.freedesktop.PackageKit.Transaction',member='Finished'", match_callback, &finished);
    if (r < 0) {
        print_and_warn(strerror(-r), ERR_LINE);
        goto finish;
    }
    sd_bus_flush(install_bus);
    INFO("calling InstallFiles on bus.");
    r = sd_bus_call_method(install_bus,
                        "org.freedesktop.PackageKit",
                        path,
                        "org.freedesktop.PackageKit.Transaction",
                        "InstallFiles",
                        &error,
                        NULL,
                        "tas",
                        0,
                        1,
                        (char *)str);
    if (r < 0) {
        print_and_warn(error.message, ERR_LINE);
        goto finish;
    }
    while (!finished) {
        r = sd_bus_process(install_bus, NULL);
        if (r > 0) {
            continue;
        }
        r = sd_bus_wait(install_bus, (uint64_t) -1);
        if (r < 0) {
            break;
        }
    }

finish:
    stop_inhibition(inhibit_fd);
    close_bus(&error, mess, install_bus);
    pthread_detach(pthread_self());
    pthread_exit(NULL);
}
コード例 #9
0
ファイル: nss-resolve.c プロジェクト: BenjaminLefoul/systemd
enum nss_status _nss_resolve_gethostbyname3_r(
                const char *name,
                int af,
                struct hostent *result,
                char *buffer, size_t buflen,
                int *errnop, int *h_errnop,
                int32_t *ttlp,
                char **canonp) {

        _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        char *r_name, *r_aliases, *r_addr, *r_addr_list;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        size_t l, idx, ms, alen;
        const char *canonical;
        int c, r, i = 0;

        BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);

        assert(name);
        assert(result);
        assert(buffer);
        assert(errnop);
        assert(h_errnop);

        if (af == AF_UNSPEC)
                af = AF_INET;

        if (af != AF_INET && af != AF_INET6) {
                r = -EAFNOSUPPORT;
                goto fail;
        }

        r = sd_bus_open_system(&bus);
        if (r < 0)
                goto fallback;

        r = sd_bus_message_new_method_call(
                        bus,
                        &req,
                        "org.freedesktop.resolve1",
                        "/org/freedesktop/resolve1",
                        "org.freedesktop.resolve1.Manager",
                        "ResolveHostname");
        if (r < 0)
                goto fail;

        r = sd_bus_message_set_auto_start(req, false);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "isit", 0, name, af, (uint64_t) 0);
        if (r < 0)
                goto fail;

        r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
        if (r < 0) {
                if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN")) {
                        *errnop = ESRCH;
                        *h_errnop = HOST_NOT_FOUND;
                        return NSS_STATUS_NOTFOUND;
                }

                if (bus_error_shall_fallback(&error))
                        goto fallback;

                goto fail;
        }

        c = count_addresses(reply, af, &canonical);
        if (c < 0) {
                r = c;
                goto fail;
        }
        if (c == 0) {
                *errnop = ESRCH;
                *h_errnop = HOST_NOT_FOUND;
                return NSS_STATUS_NOTFOUND;
        }

        if (isempty(canonical))
                canonical = name;

        alen = FAMILY_ADDRESS_SIZE(af);
        l = strlen(canonical);

        ms = ALIGN(l+1) + c * ALIGN(alen) + (c+2) * sizeof(char*);

        if (buflen < ms) {
                *errnop = ENOMEM;
                *h_errnop = TRY_AGAIN;
                return NSS_STATUS_TRYAGAIN;
        }

        /* First, append name */
        r_name = buffer;
        memcpy(r_name, canonical, l+1);
        idx = ALIGN(l+1);

        /* Second, create empty aliases array */
        r_aliases = buffer + idx;
        ((char**) r_aliases)[0] = NULL;
        idx += sizeof(char*);

        /* Third, append addresses */
        r_addr = buffer + idx;

        r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
        if (r < 0)
                goto fail;

        while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
                int ifindex, family;
                const void *a;
                size_t sz;

                r = sd_bus_message_read(reply, "ii", &ifindex, &family);
                if (r < 0)
                        goto fail;

                if (ifindex < 0) {
                        r = -EINVAL;
                        goto fail;
                }

                r = sd_bus_message_read_array(reply, 'y', &a, &sz);
                if (r < 0)
                        goto fail;

                r = sd_bus_message_exit_container(reply);
                if (r < 0)
                        goto fail;

                if (family != af)
                        continue;

                if (sz != alen) {
                        r = -EINVAL;
                        goto fail;
                }

                memcpy(r_addr + i*ALIGN(alen), a, alen);
                i++;
        }
        if (r < 0)
                goto fail;

        assert(i == c);
        idx += c * ALIGN(alen);

        /* Fourth, append address pointer array */
        r_addr_list = buffer + idx;
        for (i = 0; i < c; i++)
                ((char**) r_addr_list)[i] = r_addr + i*ALIGN(alen);

        ((char**) r_addr_list)[i] = NULL;
        idx += (c+1) * sizeof(char*);

        assert(idx == ms);

        result->h_name = r_name;
        result->h_aliases = (char**) r_aliases;
        result->h_addrtype = af;
        result->h_length = alen;
        result->h_addr_list = (char**) r_addr_list;

        /* Explicitly reset all error variables */
        *errnop = 0;
        *h_errnop = NETDB_SUCCESS;
        h_errno = 0;

        if (ttlp)
                *ttlp = 0;

        if (canonp)
                *canonp = r_name;

        return NSS_STATUS_SUCCESS;

fallback:
        {
                _nss_gethostbyname3_r_t fallback;

                fallback = (_nss_gethostbyname3_r_t)
                        find_fallback("libnss_dns.so.2", "_nss_dns_gethostbyname3_r");
                if (fallback)
                        return fallback(name, af, result, buffer, buflen, errnop, h_errnop, ttlp, canonp);
        }

fail:
        *errnop = -r;
        *h_errnop = NO_RECOVERY;
        return NSS_STATUS_UNAVAIL;
}
コード例 #10
0
ファイル: nss-resolve.c プロジェクト: BenjaminLefoul/systemd
enum nss_status _nss_resolve_gethostbyname4_r(
                const char *name,
                struct gaih_addrtuple **pat,
                char *buffer, size_t buflen,
                int *errnop, int *h_errnop,
                int32_t *ttlp) {

        _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        struct gaih_addrtuple *r_tuple, *r_tuple_first = NULL;
        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
        const char *canonical = NULL;
        size_t l, ms, idx;
        char *r_name;
        int c, r, i = 0;

        BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);

        assert(name);
        assert(pat);
        assert(buffer);
        assert(errnop);
        assert(h_errnop);

        r = sd_bus_open_system(&bus);
        if (r < 0)
                goto fallback;

        r = sd_bus_message_new_method_call(
                        bus,
                        &req,
                        "org.freedesktop.resolve1",
                        "/org/freedesktop/resolve1",
                        "org.freedesktop.resolve1.Manager",
                        "ResolveHostname");
        if (r < 0)
                goto fail;

        r = sd_bus_message_set_auto_start(req, false);
        if (r < 0)
                goto fail;

        r = sd_bus_message_append(req, "isit", 0, name, AF_UNSPEC, (uint64_t) 0);
        if (r < 0)
                goto fail;

        r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
        if (r < 0) {
                if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN")) {
                        *errnop = ESRCH;
                        *h_errnop = HOST_NOT_FOUND;
                        return NSS_STATUS_NOTFOUND;
                }

                if (bus_error_shall_fallback(&error))
                        goto fallback;

                goto fail;
        }

        c = count_addresses(reply, AF_UNSPEC, &canonical);
        if (c < 0) {
                r = c;
                goto fail;
        }
        if (c == 0) {
                *errnop = ESRCH;
                *h_errnop = HOST_NOT_FOUND;
                return NSS_STATUS_NOTFOUND;
        }

        if (isempty(canonical))
                canonical = name;

        l = strlen(canonical);
        ms = ALIGN(l+1) + ALIGN(sizeof(struct gaih_addrtuple)) * c;
        if (buflen < ms) {
                *errnop = ENOMEM;
                *h_errnop = TRY_AGAIN;
                return NSS_STATUS_TRYAGAIN;
        }

        /* First, append name */
        r_name = buffer;
        memcpy(r_name, canonical, l+1);
        idx = ALIGN(l+1);

        /* Second, append addresses */
        r_tuple_first = (struct gaih_addrtuple*) (buffer + idx);

        r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
        if (r < 0)
                goto fail;

        while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
                int family, ifindex;
                const void *a;
                size_t sz;

                assert_cc(sizeof(int32_t) == sizeof(int));

                r = sd_bus_message_read(reply, "ii", &ifindex, &family);
                if (r < 0)
                        goto fail;

                if (ifindex < 0) {
                        r = -EINVAL;
                        goto fail;
                }

                r = sd_bus_message_read_array(reply, 'y', &a, &sz);
                if (r < 0)
                        goto fail;

                r = sd_bus_message_exit_container(reply);
                if (r < 0)
                        goto fail;

                if (!IN_SET(family, AF_INET, AF_INET6))
                        continue;

                if (sz != FAMILY_ADDRESS_SIZE(family)) {
                        r = -EINVAL;
                        goto fail;
                }

                r_tuple = (struct gaih_addrtuple*) (buffer + idx);
                r_tuple->next = i == c-1 ? NULL : (struct gaih_addrtuple*) ((char*) r_tuple + ALIGN(sizeof(struct gaih_addrtuple)));
                r_tuple->name = r_name;
                r_tuple->family = family;
                r_tuple->scopeid = ifindex;
                memcpy(r_tuple->addr, a, sz);

                idx += ALIGN(sizeof(struct gaih_addrtuple));
                i++;
        }
        if (r < 0)
                goto fail;

        assert(i == c);
        assert(idx == ms);

        if (*pat)
                **pat = *r_tuple_first;
        else
                *pat = r_tuple_first;

        if (ttlp)
                *ttlp = 0;

        /* Explicitly reset all error variables */
        *errnop = 0;
        *h_errnop = NETDB_SUCCESS;
        h_errno = 0;

        return NSS_STATUS_SUCCESS;

fallback:
        {
                _nss_gethostbyname4_r_t fallback;

                fallback = (_nss_gethostbyname4_r_t)
                        find_fallback("libnss_dns.so.2", "_nss_dns_gethostbyname4_r");

                if (fallback)
                        return fallback(name, pat, buffer, buflen, errnop, h_errnop, ttlp);
        }

fail:
        *errnop = -r;
        *h_errnop = NO_RECOVERY;
        return NSS_STATUS_UNAVAIL;
}