-/*
- * Copyright (C) 2006-2012 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 2006 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
/** \file dccp_recv.c paraslash's dccp receiver */
* (C) 2005 Ian McDonald <imcdnzl@gmail.com>
*/
+#include <netinet/in.h>
+#include <sys/socket.h>
#include <regex.h>
#include <sys/types.h>
+#include <arpa/inet.h>
+#include <sys/un.h>
+#include <netdb.h>
+#include <lopsub.h>
+#include "recv_cmd.lsg.h"
#include "para.h"
#include "error.h"
#include "list.h"
#include "sched.h"
-#include "ggo.h"
#include "buffer_tree.h"
#include "recv.h"
#include "string.h"
#include "net.h"
#include "fd.h"
-#include "dccp_recv.cmdline.h"
+#ifndef DCCP_SOCKOPT_CCID
+#define DCCP_SOCKOPT_CCID 13 /**< Sets both TX/RX CCID. */
+#endif
static void dccp_recv_close(struct receiver_node *rn)
{
btr_pool_free(rn->btrp);
}
+/* Check whether the host supports the requested 'ccid' arguments. */
+static int dccp_recv_ccid_support_check(const struct lls_parse_result *lpr)
+{
+ uint8_t *ccids;
+ int i, j, ret, nccids;
+ unsigned given = RECV_CMD_OPT_GIVEN(DCCP, CCID, lpr);
+
+ ret = dccp_available_ccids(&ccids);
+ if (ret < 0)
+ return ret;
+ nccids = ret;
+ for (i = 0; i < given; i++) {
+ uint32_t val = lls_uint32_val(i,
+ RECV_CMD_OPT_RESULT(DCCP, CCID, lpr));
+ for (j = 0; j < nccids && ccids[j] != val; j++)
+ ;
+ if (j == nccids) {
+ PARA_ERROR_LOG("'CCID-%u' not supported on this host\n",
+ val);
+ return -ERRNO_TO_PARA_ERROR(EINVAL);
+ }
+ }
+ return 1;
+}
+
+/** Flowopt shortcut */
+#define OPT_ADD(fo, lev, opt, val, len) flowopt_add(fo, lev, opt, #opt, val, len)
+
static int dccp_recv_open(struct receiver_node *rn)
{
- struct dccp_recv_args_info *conf = rn->conf;
+ struct lls_parse_result *lpr = rn->lpr;
struct flowopts *fo = NULL;
uint8_t *ccids = NULL;
int fd, ret, i;
+ const struct lls_opt_result *r_c = RECV_CMD_OPT_RESULT(DCCP, CCID, lpr);
+ const char *host = RECV_CMD_OPT_STRING_VAL(DCCP, HOST, lpr);
+ uint32_t port = RECV_CMD_OPT_UINT32_VAL(DCCP, PORT, lpr);
+ unsigned given;
+ ret = dccp_recv_ccid_support_check(lpr);
+ if (ret < 0)
+ return ret;
/* Copy CCID preference list (u8 array required) */
- if (conf->ccid_given) {
- ccids = para_malloc(conf->ccid_given);
- fo = flowopt_new();
-
- for (i = 0; i < conf->ccid_given; i++)
- ccids[i] = conf->ccid_arg[i];
-
+ given = lls_opt_given(r_c);
+ if (given) {
+ ccids = alloc(given);
+ fo = flowopt_new();
+ for (i = 0; i < given; i++)
+ ccids[i] = lls_int32_val(i, r_c);
OPT_ADD(fo, SOL_DCCP, DCCP_SOCKOPT_CCID, ccids, i);
}
- fd = makesock(IPPROTO_DCCP, 0, conf->host_arg, conf->port_arg, fo);
+ fd = makesock(IPPROTO_DCCP, false, host, port, fo);
+ flowopt_cleanup(fo);
free(ccids);
if (fd < 0)
return fd;
return ret;
}
-/**
- * Check whether the host supports the requested 'ccid' arguments.
- * \param conf DCCP receiver arguments.
- * \return True if all CCIDs requested in \a conf are supported.
- */
-static bool dccp_recv_ccid_support_check(struct dccp_recv_args_info *conf)
+static void dccp_recv_pre_monitor(struct sched *s, void *context)
{
- uint8_t *ccids;
- int i, j, nccids;
+ struct receiver_node *rn = context;
- nccids = dccp_available_ccids(&ccids);
- if (nccids <= 0)
- return false;
-
- for (i = 0; i < conf->ccid_given; i++) {
- for (j = 0; j < nccids && ccids[j] != conf->ccid_arg[i]; j++)
- ;
- if (j == nccids) {
- PARA_ERROR_LOG("'CCID-%d' not supported on this host.\n",
- conf->ccid_arg[i]);
- return false;
- }
- }
- return true;
-}
-
-static void *dccp_recv_parse_config(int argc, char **argv)
-{
- struct dccp_recv_args_info *tmp = para_calloc(sizeof(*tmp));
-
- if (!dccp_recv_cmdline_parser(argc, argv, tmp) &&
- dccp_recv_ccid_support_check(tmp))
- return tmp;
- free(tmp);
- return NULL;
-}
-
-static void dccp_recv_pre_select(struct sched *s, struct task *t)
-{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
-
- t->error = 0;
- if (generic_recv_pre_select(s, t) <= 0)
+ if (generic_recv_pre_monitor(s, rn) <= 0)
return;
- para_fd_set(rn->fd, &s->rfds, &s->max_fileno);
+ sched_monitor_readfd(rn->fd, s);
}
-static void dccp_recv_post_select(struct sched *s, struct task *t)
+static int dccp_recv_post_monitor(__a_unused struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct btr_node *btrn = rn->btrn;
struct iovec iov[2];
int ret, iovcnt;
size_t num_bytes;
- ret = task_get_notification(t);
+ ret = task_get_notification(rn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
ret = -E_DCCP_OVERRUN;
if (iovcnt == 0)
goto out;
- ret = readv_nonblock(rn->fd, iov, iovcnt, &s->rfds, &num_bytes);
+ ret = readv_nonblock(rn->fd, iov, iovcnt, &num_bytes);
if (num_bytes == 0)
goto out;
if (num_bytes <= iov[0].iov_len) /* only the first buffer was filled */
btr_add_output_pool(rn->btrp, num_bytes - iov[0].iov_len, btrn);
}
out:
- if (ret >= 0)
- return;
- btr_remove_node(&rn->btrn);
- t->error = ret;
-}
-
-static void dccp_recv_free_config(void *conf)
-{
- dccp_recv_cmdline_parser_free(conf);
- free(conf);
+ if (ret < 0)
+ btr_remove_node(&rn->btrn);
+ return ret;
}
-/**
- * The init function of the dccp receiver.
- *
- * \param r Pointer to the receiver struct to initialize.
- *
- * Initialize all function pointers of \a r.
- */
-void dccp_recv_init(struct receiver *r)
-{
- struct dccp_recv_args_info dummy;
-
- dccp_recv_cmdline_parser_init(&dummy);
- r->open = dccp_recv_open;
- r->close = dccp_recv_close;
- r->pre_select = dccp_recv_pre_select;
- r->post_select = dccp_recv_post_select;
- r->parse_config = dccp_recv_parse_config;
- r->free_config = dccp_recv_free_config;
- r->help = (struct ggo_help) {
- .short_help = dccp_recv_args_info_help,
- .detailed_help = dccp_recv_args_info_detailed_help
- };
- dccp_recv_cmdline_parser_free(&dummy);
-}
+const struct receiver lsg_recv_cmd_com_dccp_user_data = {
+ .open = dccp_recv_open,
+ .close = dccp_recv_close,
+ .pre_monitor = dccp_recv_pre_monitor,
+ .post_monitor = dccp_recv_post_monitor,
+};
projects / paraslash.git / blobdiff