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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <pthread.h>
#include <math.h>
#include <string.h>
#include "nstack.h"
#include "nstack_fd_mng.h"
#include "nstack_socket.h"
#include "nstack_securec.h"
#include "nstack_sockops.h"
/* test_epollCtl_004_001_trial : both 32bit and 64bit members of 'ops' and 'conn'
need to reset, otherwise it will be invalid address in 32bit APP case */
void
nstack_reset_fdInf (nstack_fd_Inf * fdInf)
{
int loop;
fdInf->isBound = NSTACK_FD_NOBIND;
fdInf->rlfd = -1;
fdInf->rmidx = -1;
fdInf->nxtfd = -1;
fdInf->fd = -1;
fdInf->attr = 0;
fdInf->ops = 0; /*operations of the fd, for save space we user opIdx here */
fdInf->type = 0; /*the fd type like SOCK_STREAM|SOCK_NONBLOCK ... */
NSTACK_SET_FD_BLOCKING (fdInf);
for (loop = 0; loop < NSTACK_MAX_MODULE_NUM; loop++)
{
fdInf->protoFD[loop].fd = -1;
fdInf->protoFD[loop].errCode = 0;
fdInf->protoFD[loop].pad = 0;
fdInf->protoFD[loop].liststate = NSTACK_NO_LISTENING;
}
nstack_reset_fd_local_lock_info (&(fdInf->local_lock));
return;
}
nstack_fd_Inf *
nstack_fd2inf (int fd)
{
/*if nstack init not finished, just return null */
if (NSTACK_MODULE_SUCCESS != g_nStackInfo.fwInited)
{
return NULL;
}
if (nstack_is_nstack_sk (fd) && g_nStackInfo.lk_sockPoll)
{
return &(g_nStackInfo.lk_sockPoll[fd]);
}
return NULL;
}
void
nstack_set_protoFd (nstack_fd_Inf * fdInf, int modInx, int protofd)
{
if (protofd < nstack_get_minfd_id (modInx)
|| protofd > nstack_get_maxfd_id (modInx))
{
NSSOC_LOGERR ("module:%d protofd invalid] protofd=%d", modInx, protofd);
return;
}
nstack_get_protoFd (fdInf, modInx) = protofd;
nsep_set_infoProtoFD (fdInf->fd, modInx, protofd);
nssct_create (fdInf->fd, protofd, modInx);
return;
}
/* pass app info to struct netconn */
void
nstack_set_app_info (nstack_fd_Inf * fdInf, int modInx)
{
return;
}
nstack_fd_Inf *
nstack_lk_fd_alloc_with_kernel (int nfd)
{
nstack_fd_Inf *retInf = NULL;
if ((nfd < 0) || (nfd >= (int) NSTACK_KERNEL_FD_MAX)
|| (!g_nStackInfo.lk_sockPoll))
{
NSSOC_LOGERR
("nfd < 0 or nfd>= NSTACK_KERNEL_FD_MAX, parameter not valid");
return NULL;
}
retInf = &g_nStackInfo.lk_sockPoll[nfd];
if (FD_OPEN == retInf->local_lock.fd_status)
{
NSSOC_LOGERR ("nstack_lk_fd_alloc_with_kernel fd:%d already create",
nfd);
}
retInf->fd = nfd;
if (-1 == nsep_alloc_infoWithSock (nfd))
{
NSSOC_LOGERR ("Can't alloc epInfo for nfd=%d]", nfd);
nstack_reset_fdInf (retInf);
return NULL;
}
nstack_set_protoFd (retInf, g_nstack_modules.fix_mid, nfd);
NSSOC_LOGDBG ("nfd=%d,retInf_fd=%d", nfd, retInf->fd);
return retInf;
}
int
nstack_fd_free_with_kernel (nstack_fd_Inf * fdInf)
{
int closeRet = 0;
ns_int32 fd;
if (!fdInf)
{
NSSOC_LOGERR ("fdInf is NULL");
return 0;
}
fd = fdInf->protoFD[nstack_get_fix_mid ()].fd;
nstack_reset_fdInf (fdInf);
if (fd >= 0 && fd < (int) NSTACK_KERNEL_FD_MAX)
{
NSTACK_CAL_FUN (nstack_fix_mid_ops (), close, (fd), closeRet);
NSSOC_LOGINF ("close]fd=%d,ret=%d", fd, closeRet);
}
return closeRet;
}
void
nstack_fork_init_parent (pid_t ppid)
{
int fd;
nstack_fd_Inf *fdInf = NULL;
for (fd = 0; fd < (int) NSTACK_KERNEL_FD_MAX; fd++)
{
fdInf = nstack_getValidInf (fd);
if ((NULL != fdInf) && (!((u32_t) (fdInf->type) & SOCK_CLOEXEC)))
{
int i;
nstack_each_modInx (i)
{
if ((nstack_extern_deal (i).fork_parent_fd)
&& (fdInf->protoFD[i].fd >= 0))
{
nstack_extern_deal (i).fork_parent_fd (fdInf->protoFD[i].fd,
ppid);
}
}
}
}
}
void
nstack_fork_init_child (pid_t ppid)
{
pid_t cpid = updata_sys_pid ();
NSSOC_LOGDBG ("parent_pid=%d, child_pid=%d", ppid, cpid);
nsfw_mgr_clr_fd_lock ();
if (FALSE == nsfw_recycle_fork_init ())
{
NSFW_LOGERR ("init rec zone failed!]ppid=%d,cpid=%d", ppid, cpid);
}
int i;
nstack_each_modInx (i)
{
if (nstack_extern_deal (i).fork_init_child)
{
nstack_extern_deal (i).fork_init_child (ppid, cpid);
}
}
int pos;
nstack_fd_Inf *fdInf = NULL;
for (pos = 0; pos < (int) NSTACK_KERNEL_FD_MAX; pos++)
{
fdInf = nstack_getValidInf (pos);
if (fdInf)
{
if (!((u32_t) (fdInf->type) & SOCK_CLOEXEC))
{
nstack_fork_fd_local_lock_info (&fdInf->local_lock);
nstack_each_modInx (i)
{
if ((nstack_extern_deal (i).fork_child_fd)
&& (fdInf->protoFD[i].fd >= 0))
{
nstack_extern_deal (i).fork_child_fd (fdInf->
protoFD[i].fd, ppid,
cpid);
}
}
}
else
{
nstack_reset_fd_local_lock_info (&fdInf->local_lock);
nsep_set_infoSockMap (pos, NULL);
nstack_each_modInx (i)
{
if ((nstack_extern_deal (i).fork_free_fd)
&& (fdInf->protoFD[i].fd >= 0))
{
nstack_extern_deal (i).fork_free_fd (fdInf->protoFD[i].fd,
ppid, cpid);
}
}
}
}
}
}
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