Add PAM responder

Also move responders under server/responder with shared code
in server/responder/common

Signed-off-by: Simo Sorce <ssorce@redhat.com>

1 files changed, 0 insertions, 589 deletions

diff --git a/server/nss/nsssrv.c b/server/nss/nsssrv.c
deleted file mode 100644
index c48aed4a3..000000000
--- a/server/nss/nsssrv.c
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
-   SSSD
-
-   NSS Responder
-
-   Copyright (C) Simo Sorce <ssorce@redhat.com>	2008
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <string.h>
-#include <sys/time.h>
-#include <errno.h>
-#include "popt.h"
-#include "util/util.h"
-#include "nss/nsssrv.h"
-#include "db/sysdb.h"
-#include "confdb/confdb.h"
-#include "dbus/dbus.h"
-#include "sbus/sssd_dbus.h"
-#include "util/btreemap.h"
-#include "providers/data_provider.h"
-#include "monitor/monitor_sbus.h"
-#include "monitor/monitor_interfaces.h"
-#include "sbus/sbus_client.h"
-
-#define SSS_NSS_PIPE_NAME "nss"
-
-static int service_identity(DBusMessage *message, struct sbus_conn_ctx *sconn);
-static int service_pong(DBusMessage *message, struct sbus_conn_ctx *sconn);
-static int service_reload(DBusMessage *message, struct sbus_conn_ctx *sconn);
-static int nss_init_domains(struct nss_ctx *nctx);
-static int _domain_comparator(const void *key1, const void *key2);
-
-struct sbus_method nss_sbus_methods[] = {
-    {SERVICE_METHOD_IDENTITY, service_identity},
-    {SERVICE_METHOD_PING, service_pong},
-    {SERVICE_METHOD_RELOAD, service_reload},
-    {NULL, NULL}
-};
-
-static void set_nonblocking(int fd)
-{
-    unsigned v;
-    v = fcntl(fd, F_GETFL, 0);
-    fcntl(fd, F_SETFL, v | O_NONBLOCK);
-}
-
-static void set_close_on_exec(int fd)
-{
-    unsigned v;
-    v = fcntl(fd, F_GETFD, 0);
-    fcntl(fd, F_SETFD, v | FD_CLOEXEC);
-}
-
-static int client_destructor(struct cli_ctx *ctx)
-{
-    if (ctx->cfd > 0) close(ctx->cfd);
-    return 0;
-}
-
-static void client_send(struct event_context *ev, struct cli_ctx *cctx)
-{
-    int ret;
-
-    ret = nss_packet_send(cctx->creq->out, cctx->cfd);
-    if (ret == EAGAIN) {
-        /* not all data was sent, loop again */
-        return;
-    }
-    if (ret != EOK) {
-        DEBUG(0, ("Failed to read request, aborting client!\n"));
-        talloc_free(cctx);
-        return;
-    }
-
-    /* ok all sent */
-    EVENT_FD_NOT_WRITEABLE(cctx->cfde);
-    EVENT_FD_READABLE(cctx->cfde);
-    talloc_free(cctx->creq);
-    cctx->creq = NULL;
-    return;
-}
-
-static void client_recv(struct event_context *ev, struct cli_ctx *cctx)
-{
-    int ret;
-
-    if (!cctx->creq) {
-        cctx->creq = talloc_zero(cctx, struct cli_request);
-        if (!cctx->creq) {
-            DEBUG(0, ("Failed to alloc request, aborting client!\n"));
-            talloc_free(cctx);
-            return;
-        }
-    }
-
-    if (!cctx->creq->in) {
-        ret = nss_packet_new(cctx->creq, NSS_PACKET_MAX_RECV_SIZE,
-                             0, &cctx->creq->in);
-        if (ret != EOK) {
-            DEBUG(0, ("Failed to alloc request, aborting client!\n"));
-            talloc_free(cctx);
-            return;
-        }
-    }
-
-    ret = nss_packet_recv(cctx->creq->in, cctx->cfd);
-    switch (ret) {
-    case EOK:
-        /* do not read anymore */
-        EVENT_FD_NOT_READABLE(cctx->cfde);
-        /* execute command */
-        ret = nss_cmd_execute(cctx);
-        if (ret != EOK) {
-            DEBUG(0, ("Failed to execute request, aborting client!\n"));
-            talloc_free(cctx);
-        }
-        /* past this point cctx can be freed at any time by callbacks
-         * in case of error, do not use it */
-        return;
-
-    case EAGAIN:
-        /* need to read still some data, loop again */
-        break;
-
-    case EINVAL:
-        DEBUG(6, ("Invalid data from client, closing connection!\n"));
-        talloc_free(cctx);
-        break;
-
-    case ENODATA:
-        DEBUG(5, ("Client disconnected!\n"));
-        talloc_free(cctx);
-        break;
-
-    default:
-        DEBUG(6, ("Failed to read request, aborting client!\n"));
-        talloc_free(cctx);
-    }
-
-    return;
-}
-
-static void client_fd_handler(struct event_context *ev,
-                              struct fd_event *fde,
-                              uint16_t flags, void *ptr)
-{
-    struct cli_ctx *cctx = talloc_get_type(ptr, struct cli_ctx);
-
-    if (flags & EVENT_FD_READ) {
-        client_recv(ev, cctx);
-        return;
-    }
-    if (flags & EVENT_FD_WRITE) {
-        client_send(ev, cctx);
-        return;
-    }
-}
-
-static void accept_fd_handler(struct event_context *ev,
-                              struct fd_event *fde,
-                              uint16_t flags, void *ptr)
-{
-    /* accept and attach new event handler */
-    struct nss_ctx *nctx = talloc_get_type(ptr, struct nss_ctx);
-    struct cli_ctx *cctx;
-    socklen_t len;
-
-    cctx = talloc_zero(nctx, struct cli_ctx);
-    if (!cctx) {
-        struct sockaddr_un addr;
-        int fd;
-        DEBUG(0, ("Out of memory trying to setup client context!\n"));
-        /* accept and close to signal the client we have a problem */
-        memset(&addr, 0, sizeof(addr));
-        len = sizeof(addr);
-        fd = accept(nctx->lfd, (struct sockaddr *)&addr, &len);
-        if (fd == -1) {
-            return;
-        }
-        close(fd);
-        return;
-    }
-
-    len = sizeof(cctx->addr);
-    cctx->cfd = accept(nctx->lfd, (struct sockaddr *)&cctx->addr, &len);
-    if (cctx->cfd == -1) {
-        DEBUG(1, ("Accept failed [%s]", strerror(errno)));
-        talloc_free(cctx);
-        return;
-    }
-
-    cctx->cfde = event_add_fd(ev, cctx, cctx->cfd,
-                              EVENT_FD_READ, client_fd_handler, cctx);
-    if (!cctx->cfde) {
-        close(cctx->cfd);
-        talloc_free(cctx);
-        DEBUG(2, ("Failed to queue client handler\n"));
-    }
-
-    cctx->ev = ev;
-    cctx->nctx = nctx;
-
-    talloc_set_destructor(cctx, client_destructor);
-
-    DEBUG(4, ("Client connected!\n"));
-
-    return;
-}
-
-static int service_identity(DBusMessage *message, struct sbus_conn_ctx *sconn)
-{
-    dbus_uint16_t version = NSS_SBUS_SERVICE_VERSION;
-    const char *name = NSS_SBUS_SERVICE_NAME;
-    DBusMessage *reply;
-    dbus_bool_t ret;
-
-    DEBUG(4,("Sending ID reply: (%s,%d)\n",
-             name, version));
-
-    reply = dbus_message_new_method_return(message);
-    if (!reply) return ENOMEM;
-
-    ret = dbus_message_append_args(reply,
-                                   DBUS_TYPE_STRING, &name,
-                                   DBUS_TYPE_UINT16, &version,
-                                   DBUS_TYPE_INVALID);
-    if (!ret) {
-        dbus_message_unref(reply);
-        return EIO;
-    }
-
-    /* send reply back */
-    sbus_conn_send_reply(sconn, reply);
-    dbus_message_unref(reply);
-
-    return EOK;
-}
-
-static int service_pong(DBusMessage *message, struct sbus_conn_ctx *sconn)
-{
-    DBusMessage *reply;
-    dbus_bool_t ret;
-
-    reply = dbus_message_new_method_return(message);
-    if (!reply) return ENOMEM;
-
-    ret = dbus_message_append_args(reply, DBUS_TYPE_INVALID);
-    if (!ret) {
-        dbus_message_unref(reply);
-        return EIO;
-    }
-
-    /* send reply back */
-    sbus_conn_send_reply(sconn, reply);
-    dbus_message_unref(reply);
-
-    return EOK;
-}
-
-static int service_reload(DBusMessage *message, struct sbus_conn_ctx *sconn)
-{
-    /* Monitor calls this function when we need to reload
-     * our configuration information. Perform whatever steps
-     * are needed to update the configuration objects.
-     */
-
-    /* Send an empty reply to acknowledge receipt */
-    return service_pong(message, sconn);
-}
-
-static int nss_sbus_init(struct nss_ctx *nctx)
-{
-    int ret;
-    char *sbus_address;
-    struct service_sbus_ctx *ss_ctx;
-    struct sbus_method_ctx *sm_ctx;
-
-    /* Set up SBUS connection to the monitor */
-    ret = monitor_get_sbus_address(nctx, nctx->cdb, &sbus_address);
-    if (ret != EOK) {
-        DEBUG(0, ("Could not locate monitor address.\n"));
-        return ret;
-    }
-
-    ret = monitor_init_sbus_methods(nctx, nss_sbus_methods, &sm_ctx);
-    if (ret != EOK) {
-        DEBUG(0, ("Could not initialize SBUS methods.\n"));
-        return ret;
-    }
-
-    ret = sbus_client_init(nctx, nctx->ev,
-                           sbus_address, sm_ctx,
-                           NULL /* Private Data */,
-                           NULL /* Destructor */,
-                           &ss_ctx);
-    if (ret != EOK) {
-        DEBUG(0, ("Failed to connect to monitor services.\n"));
-        return ret;
-    }
-
-    /* Set up NSS-specific listeners */
-    /* None currently used */
-
-    nctx->ss_ctx = ss_ctx;
-
-    return EOK;
-}
-
-/* create a unix socket and listen to it */
-static int set_unix_socket(struct nss_ctx *nctx)
-{
-    struct sockaddr_un addr;
-    char *default_pipe;
-    int ret;
-
-    default_pipe = talloc_asprintf(nctx, "%s/%s", PIPE_PATH, SSS_NSS_PIPE_NAME);
-    if (!default_pipe) {
-        return ENOMEM;
-    }
-
-    ret = confdb_get_string(nctx->cdb, nctx,
-                            "config/services/nss", "unixSocket",
-                            default_pipe, &nctx->sock_name);
-    if (ret != EOK) {
-        talloc_free(default_pipe);
-        return ret;
-    }
-    talloc_free(default_pipe);
-
-    nctx->lfd = socket(AF_UNIX, SOCK_STREAM, 0);
-    if (nctx->lfd == -1) {
-        return EIO;
-    }
-
-    /* Set the umask so that permissions are set right on the socket.
-     * It must be readable and writable by anybody on the system. */
-    umask(0111);
-
-    set_nonblocking(nctx->lfd);
-    set_close_on_exec(nctx->lfd);
-
-    memset(&addr, 0, sizeof(addr));
-    addr.sun_family = AF_UNIX;
-    strncpy(addr.sun_path, nctx->sock_name, sizeof(addr.sun_path));
-
-    /* make sure we have no old sockets around */
-    unlink(nctx->sock_name);
-
-    if (bind(nctx->lfd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
-        DEBUG(0,("Unable to bind on socket '%s'\n", nctx->sock_name));
-        goto failed;
-    }
-    if (listen(nctx->lfd, 10) != 0) {
-        DEBUG(0,("Unable to listen on socket '%s'\n", nctx->sock_name));
-        goto failed;
-    }
-
-    nctx->lfde = event_add_fd(nctx->ev, nctx, nctx->lfd,
-                              EVENT_FD_READ, accept_fd_handler, nctx);
-
-    /* we want default permissions on created files to be very strict,
-       so set our umask to 0177 */
-    umask(0177);
-    return EOK;
-
-failed:
-    /* we want default permissions on created files to be very strict,
-       so set our umask to 0177 */
-    umask(0177);
-    close(nctx->lfd);
-    return EIO;
-}
-
-/* domain names are case insensitive for now
- * NOTE: this function is not utf-8 safe,
- * only ASCII names for now */
-static int _domain_comparator(const void *key1, const void *key2)
-{
-    return strcasecmp((const char *)key1, (const char *)key2);
-}
-
-static int nss_init_domains(struct nss_ctx *nctx)
-{
-    char *path;
-    char **domains;
-    char *provider;
-    TALLOC_CTX *tmp_ctx;
-    struct nss_domain_info *info;
-    int ret, i, c;
-    int retval;
-
-    tmp_ctx = talloc_new(nctx);
-    ret = confdb_get_domains(nctx->cdb, tmp_ctx, &domains);
-    if (ret != EOK) {
-        retval = ret;
-        goto done;
-    }
-
-    i = 0;
-    c = 0;
-    while (domains[i] != NULL) {
-        DEBUG(3, ("Adding domain %s to the map\n", domains[i]));
-
-        path = talloc_asprintf(tmp_ctx, "config/domains/%s", domains[i]);
-        if (!path) {
-            retval = ENOMEM;
-            goto done;
-        }
-
-        /* alloc on tmp_ctx, it will be stolen by btreemap_set_value */
-        info = talloc_zero(tmp_ctx, struct nss_domain_info);
-        if (!info) {
-            retval = ENOMEM;
-            goto done;
-        }
-
-        /* Build the basedn for this domain */
-        info->basedn = talloc_asprintf(info, SYSDB_DOM_BASE, domains[i]);
-        DEBUG(3, ("BaseDN: %s\n", info->basedn));
-
-        ret = confdb_get_int(nctx->cdb, tmp_ctx, path,
-                             "enumerate", false, &(info->enumerate));
-        if (ret != EOK) {
-            DEBUG(0, ("Failed to fetch enumerate for [%s]!\n", domains[i]));
-        }
-
-        ret = confdb_get_bool(nctx->cdb, tmp_ctx, path,
-                              "legacy", false, &(info->legacy));
-        if (ret != EOK) {
-            DEBUG(0, ("Failed to fetch legacy for [%s]!\n", domains[i]));
-        }
-
-        ret = confdb_get_string(nctx->cdb, tmp_ctx, path, "provider",
-                                NULL, &provider);
-        if (ret != EOK) {
-            DEBUG(0, ("Failed to fetch provider for [%s]!\n", domains[i]));
-        }
-        if (provider) info->has_provider = true;
-
-        ret = btreemap_set_value(nctx, &nctx->domain_map,
-                                 domains[i], info,
-                                 _domain_comparator);
-        if (ret != EOK) {
-            DEBUG(1, ("Failed to store domain info, aborting!\n"));
-            retval = ret;
-            goto done;
-        }
-
-        i++;
-        c++;
-    }
-    if (c == 0) {
-        /* No domains configured!
-         * Note: this should never happen, since LOCAL should
-         * always be configured */
-        DEBUG(0, ("No domains configured on this client!\n"));
-        retval = EINVAL;
-        goto done;
-    }
-
-    ret = confdb_get_string(nctx->cdb, nctx,
-                            "config/domains", "default",
-                            NULL, &nctx->default_domain);
-    if (ret != EOK) {
-        retval = ret;
-        goto done;
-    }
-
-    retval = EOK;
-
-done:
-    talloc_free(tmp_ctx);
-    return retval;
-}
-
-int nss_process_init(TALLOC_CTX *mem_ctx,
-                     struct event_context *ev,
-                     struct confdb_ctx *cdb)
-{
-    struct nss_ctx *nctx;
-    int ret;
-
-    nctx = talloc_zero(mem_ctx, struct nss_ctx);
-    if (!nctx) {
-        DEBUG(0, ("fatal error initializing nss_ctx\n"));
-        return ENOMEM;
-    }
-    nctx->ev = ev;
-    nctx->cdb = cdb;
-
-    ret = nss_init_domains(nctx);
-    if (ret != EOK) {
-        DEBUG(0, ("fatal error setting up domain map\n"));
-        return ret;
-    }
-
-    ret = nss_sbus_init(nctx);
-    if (ret != EOK) {
-        DEBUG(0, ("fatal error setting up message bus\n"));
-        return ret;
-    }
-
-    ret = nss_dp_init(nctx);
-    if (ret != EOK) {
-        DEBUG(0, ("fatal error setting up backend connector\n"));
-        return ret;
-    }
-
-    ret = sysdb_init(nctx, ev, cdb, NULL, &nctx->sysdb);
-    if (ret != EOK) {
-        DEBUG(0, ("fatal error initializing nss_ctx\n"));
-        return ret;
-    }
-
-    /* after all initializations we are ready to listen on our socket */
-    ret = set_unix_socket(nctx);
-    if (ret != EOK) {
-        DEBUG(0, ("fatal error initializing socket\n"));
-        return ret;
-    }
-
-    nctx->cache_timeout = 600; /* FIXME: read from conf */
-
-    DEBUG(1, ("NSS Initialization complete\n"));
-
-    return EOK;
-}
-
-int main(int argc, const char *argv[])
-{
-    int opt;
-    poptContext pc;
-    struct main_context *main_ctx;
-    int ret;
-
-	struct poptOption long_options[] = {
-		POPT_AUTOHELP
-        SSSD_MAIN_OPTS
-		{ NULL }
-	};
-
-	pc = poptGetContext(argv[0], argc, argv, long_options, 0);
-	while((opt = poptGetNextOpt(pc)) != -1) {
-		switch(opt) {
-		default:
-			fprintf(stderr, "\nInvalid option %s: %s\n\n",
-				  poptBadOption(pc, 0), poptStrerror(opt));
-			poptPrintUsage(pc, stderr, 0);
-			return 1;
-		}
-	}
-
-	poptFreeContext(pc);
-
-    /* set up things like debug , signals, daemonization, etc... */
-    ret = server_setup("sssd[nss]", 0, &main_ctx);
-    if (ret != EOK) return 2;
-
-    ret = nss_process_init(main_ctx,
-                           main_ctx->event_ctx,
-                           main_ctx->confdb_ctx);
-    if (ret != EOK) return 3;
-
-    /* loop on main */
-    server_loop(main_ctx);
-
-    return 0;
-}
-