stuff

1 files changed, 0 insertions, 704 deletions

diff --git a/src/resolve/nss-resolve/nss-resolve.c b/src/resolve/nss-resolve/nss-resolve.c
deleted file mode 100644
index d369f1b0c8..0000000000
--- a/src/resolve/nss-resolve/nss-resolve.c
+++ /dev/null
@@ -1,704 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2014 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <dlfcn.h>
-#include <errno.h>
-#include <netdb.h>
-#include <nss.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <systemd/sd-bus.h>
-
-#include "bus-common-errors.h"
-#include "in-addr-util.h"
-#include "macro.h"
-#include "nss-util.h"
-#include "string-util.h"
-#include "util.h"
-#include "signal-util.h"
-
-NSS_GETHOSTBYNAME_PROTOTYPES(resolve);
-NSS_GETHOSTBYADDR_PROTOTYPES(resolve);
-
-#define DNS_CALL_TIMEOUT_USEC (45*USEC_PER_SEC)
-
-typedef void (*voidfunc_t)(void);
-
-static voidfunc_t find_fallback(const char *module, const char *symbol) {
-        void *dl;
-
-        /* Try to find a fallback NSS module symbol */
-
-        dl = dlopen(module, RTLD_LAZY|RTLD_NODELETE);
-        if (!dl)
-                return NULL;
-
-        return dlsym(dl, symbol);
-}
-
-static bool bus_error_shall_fallback(sd_bus_error *e) {
-        return sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN) ||
-               sd_bus_error_has_name(e, SD_BUS_ERROR_NAME_HAS_NO_OWNER) ||
-               sd_bus_error_has_name(e, SD_BUS_ERROR_NO_REPLY) ||
-               sd_bus_error_has_name(e, SD_BUS_ERROR_ACCESS_DENIED);
-}
-
-static int count_addresses(sd_bus_message *m, int af, const char **canonical) {
-        int c = 0, r;
-
-        assert(m);
-        assert(canonical);
-
-        r = sd_bus_message_enter_container(m, 'a', "(iiay)");
-        if (r < 0)
-                return r;
-
-        while ((r = sd_bus_message_enter_container(m, 'r', "iiay")) > 0) {
-                int family, ifindex;
-
-                assert_cc(sizeof(int32_t) == sizeof(int));
-
-                r = sd_bus_message_read(m, "ii", &ifindex, &family);
-                if (r < 0)
-                        return r;
-
-                r = sd_bus_message_skip(m, "ay");
-                if (r < 0)
-                        return r;
-
-                r = sd_bus_message_exit_container(m);
-                if (r < 0)
-                        return r;
-
-                if (af != AF_UNSPEC && family != af)
-                        continue;
-
-                c ++;
-        }
-        if (r < 0)
-                return r;
-
-        r = sd_bus_message_exit_container(m);
-        if (r < 0)
-                return r;
-
-        r = sd_bus_message_read(m, "s", canonical);
-        if (r < 0)
-                return r;
-
-        r = sd_bus_message_rewind(m, true);
-        if (r < 0)
-                return r;
-
-        return c;
-}
-
-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) {
-
-        enum nss_status (*fallback)(
-                        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:
-        fallback = (enum nss_status (*)(const char *name,
-                                        struct gaih_addrtuple **pat,
-                                        char *buffer, size_t buflen,
-                                        int *errnop, int *h_errnop,
-                                        int32_t *ttlp))
-                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;
-}
-
-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) {
-
-        enum nss_status (*fallback)(
-                        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:
-        fallback = (enum nss_status (*)(const char *name,
-                                        int af,
-                                        struct hostent *result,
-                                        char *buffer, size_t buflen,
-                                        int *errnop, int *h_errnop,
-                                        int32_t *ttlp,
-                                        char **canonp))
-                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;
-}
-
-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) {
-
-        enum nss_status (*fallback)(
-                        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;
-        unsigned c = 0, i = 0;
-        size_t ms = 0, idx;
-        const char *n;
-        int r, ifindex;
-
-        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;
-        }
-
-        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",
-                        "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, 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;
-
-
-                *errnop = -r;
-                *h_errnop = NO_RECOVERY;
-                return NSS_STATUS_UNAVAIL;
-        }
-
-        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) {
-                *errnop = ESRCH;
-                *h_errnop = HOST_NOT_FOUND;
-                return NSS_STATUS_NOTFOUND;
-        }
-
-        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 = ENOMEM;
-                *h_errnop = TRY_AGAIN;
-                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 all error variables */
-        *errnop = 0;
-        *h_errnop = NETDB_SUCCESS;
-        h_errno = 0;
-
-        return NSS_STATUS_SUCCESS;
-
-fallback:
-        fallback = (enum nss_status (*)(
-                                    const void* addr, socklen_t len,
-                                    int af,
-                                    struct hostent *result,
-                                    char *buffer, size_t buflen,
-                                    int *errnop, int *h_errnop,
-                                    int32_t *ttlp))
-                find_fallback("libnss_dns.so.2", "_nss_dns_gethostbyaddr2_r");
-
-        if (fallback)
-                return fallback(addr, len, af, result, buffer, buflen, errnop, h_errnop, ttlp);
-
-fail:
-        *errnop = -r;
-        *h_errnop = NO_RECOVERY;
-        return NSS_STATUS_UNAVAIL;
-}
-
-NSS_GETHOSTBYNAME_FALLBACKS(resolve);
-NSS_GETHOSTBYADDR_FALLBACKS(resolve);