/*
* scamper_fd_private
*
* allocate a private fd for scamper to manage. this fd is not shared amongst
* scamper.
*/
scamper_fd_t *scamper_fd_private(int fd,
scamper_fd_cb_t read_cb, void *read_param,
scamper_fd_cb_t write_cb, void *write_param)
{
scamper_fd_t *fdn = NULL;
if((fdn = fd_alloc(SCAMPER_FD_TYPE_PRIVATE, fd)) == NULL)
{
goto err;
}
if((fdn->fd_list_node = dlist_tail_push(fd_list, fdn)) == NULL)
goto err;
if(read_cb != NULL)
{
scamper_fd_read_set(fdn, read_cb, read_param);
scamper_fd_read_unpause(fdn);
}
if(write_cb != NULL)
{
scamper_fd_write_set(fdn, write_cb, write_param);
scamper_fd_write_unpause(fdn);
}
return fdn;
err:
if(fdn != NULL) fd_free(fdn);
return NULL;
}
/*
* open a file with flags and mode and return file descriptor.
*/
int open(const char * path, u32_t flags, u32_t mode)
{
char buf[MAX_PATH];
struct file * fp;
int fd;
int err;
if((fd = fd_alloc(0)) < 0)
return -1;
if(vfs_path_conv(path, buf) !=0 )
{
fd_free(fd);
return -1;
}
if((err = sys_open(buf, flags, mode, &fp)) != 0)
{
fd_free(fd);
return err;
}
set_fp(fd, fp);
return fd;
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
// file descriptor.
// LAB 5: Your code here.
struct Fd *fd;
int r;
if((r = fd_alloc(&fd)) < 0)
return r;
strcpy(fsipcbuf.open.req_path, path);
fsipcbuf.open.req_omode = mode;
ipc_send(envs[1].env_id, FSREQ_OPEN, &fsipcbuf, PTE_P | PTE_W | PTE_U);
if((r = ipc_recv(NULL, fd, NULL))<0)
return r;
return fd2num(fd);
panic("open not implemented");
}
// Open a file (or directory),
// returning the file descriptor index on success, < 0 on failure.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a message to the file server to open a file
// using a function in fsipc.c.
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page? Look
// at fsipc.c if you aren't sure.)
// Then map the file data (you may find fmap() helpful).
// Return the file descriptor index.
// If any step fails, use fd_close to free the file descriptor.
// LAB 5: Your code here.
int r;
struct Fd *fd;
if ((r = fd_alloc(&fd)) < 0)
return r;
if ((r = fsipc_open(path, mode, fd)) < 0){
fd_close(fd, 0);
return r;
}
if ((r = fmap(fd, 0, fd->fd_file.file.f_size) ) < 0){
fd_close(fd, 0);
return r;
}
return fd2num(fd);
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
// file descriptor.
// LAB 5: Your code here.
struct Fd* retval;
int r = fd_alloc(&retval);
if(r<0) return r;
fsipcbuf.open.req_omode = mode;
strcpy(fsipcbuf.open.req_path, path);
r = fsipc(FSREQ_OPEN, retval);
if (r<0) {
fd_close(retval, 0);
return r;
}
return fd2num(retval);
// panic("open not implemented");
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
struct Fd *f = NULL;
int r = 0;
if (!path)
return -E_INVAL;
if((r=fd_alloc(&f))<0)
return r;
strcpy(fsipcbuf.open.req_path, path);
fsipcbuf.open.req_omode = mode;
if ((r=fsipc(FSREQ_OPEN, f))<0) {
fd_close(f, 0);
return r;
}
return fd2num(f);
}
int
accept(int fd, struct sockaddr *addr, int *anamelen)
{
oskit_error_t rc;
oskit_socket_t *newsock;
int newfd;
if (fd_check_socket(fd))
return -1;
fd_access_lock(fd, FD_RDWR);
/* Accept a new connection */
rc = oskit_socket_accept(fd_array[fd].socket,
(struct oskit_sockaddr *)addr, anamelen, &newsock);
fd_access_unlock(fd, FD_RDWR);
if (rc) {
errno = rc;
return -1;
}
/* Allocate a file descriptor for it */
newfd = fd_alloc((oskit_iunknown_t*)newsock, 0);
if (newfd < 0) {
oskit_socket_release(newsock);
return -1;
}
fd_lock(newfd);
fd_array[newfd].socket = newsock;
fd_unlock(newfd);
return newfd;
}
int
pipe(int pfd[2])
{
int r;
struct Fd *fd0, *fd1;
void *va;
// allocate the file descriptor table entries
if ((r = fd_alloc(&fd0)) < 0
|| (r = sys_page_alloc(0, fd0, PTE_P|PTE_W|PTE_U|PTE_SHARE)) < 0)
goto err;
if ((r = fd_alloc(&fd1)) < 0
|| (r = sys_page_alloc(0, fd1, PTE_P|PTE_W|PTE_U|PTE_SHARE)) < 0)
goto err1;
// allocate the pipe structure as first data page in both
va = fd2data(fd0);
if ((r = sys_page_alloc(0, va, PTE_P|PTE_W|PTE_U|PTE_SHARE)) < 0)
goto err2;
if ((r = sys_page_map(0, va, 0, fd2data(fd1), PTE_P|PTE_W|PTE_U|PTE_SHARE)) < 0)
goto err3;
// set up fd structures
fd0->fd_dev_id = devpipe.dev_id;
fd0->fd_omode = O_RDONLY;
fd1->fd_dev_id = devpipe.dev_id;
fd1->fd_omode = O_WRONLY;
if (debug)
cprintf("[%08x] pipecreate %08x\n", env->env_id, vpt[VPN(va)]);
pfd[0] = fd2num(fd0);
pfd[1] = fd2num(fd1);
return 0;
err3:
sys_page_unmap(0, va);
err2:
sys_page_unmap(0, fd1);
err1:
sys_page_unmap(0, fd0);
err:
return r;
}
scamper_fd_t *scamper_fd_dl(int ifindex)
{
scamper_fd_t *fdn = NULL, findme;
int fd = -1;
findme.type = SCAMPER_FD_TYPE_DL;
findme.fd_dl_ifindex = ifindex;
if((fdn = fd_find(&findme)) != NULL)
{
scamper_fd_read_unpause(fdn);
return fdn;
}
/*
* open the file descriptor for the ifindex, and then allocate a scamper_fd
* for the file descriptor
*/
if((fd = scamper_dl_open(ifindex)) == -1 ||
(fdn = fd_alloc(SCAMPER_FD_TYPE_DL, fd)) == NULL)
{
goto err;
}
/*
* record the ifindex for the file descriptor, and then allocate the state
* that is maintained with it
*/
fdn->fd_dl_ifindex = ifindex;
/*
* 1. add the file descriptor to the splay tree
* 2. allocate state for the datalink file descriptor
*/
if((fdn->fd_tree_node = splaytree_insert(fd_tree, fdn)) == NULL ||
(fdn->fd_list_node = dlist_tail_push(fd_list, fdn)) == NULL ||
(fdn->fd_dl_dl = scamper_dl_state_alloc(fdn)) == NULL)
{
goto err;
}
/* set the file descriptor up for reading */
fdn->read.cb = scamper_dl_read_cb;
fdn->read.param = fdn->fd_dl_dl;
fdn->write.cb = NULL;
fdn->write.param = NULL;
scamper_fd_read_unpause(fdn);
return fdn;
err:
if(fdn != NULL) free(fdn);
if(fd != -1) scamper_dl_close(fd);
return NULL;
}
static scamper_fd_t *fd_tcp(int type, void *addr, uint16_t sport)
{
scamper_fd_t *fdn, findme;
size_t len = 0;
int fd = -1;
findme.type = type;
findme.fd_tcp_addr = addr;
findme.fd_tcp_sport = sport;
if((fdn = fd_find(&findme)) != NULL)
{
return fdn;
}
if(type == SCAMPER_FD_TYPE_TCP4)
{
fd = scamper_tcp4_open(addr, sport);
len = sizeof(struct in_addr);
}
else if(type == SCAMPER_FD_TYPE_TCP6)
{
fd = scamper_tcp6_open(addr, sport);
len = sizeof(struct in6_addr);
}
if(fd == -1 || (fdn = fd_alloc(type, fd)) == NULL ||
(addr != NULL && (fdn->fd_tcp_addr = memdup(addr, len)) == NULL))
{
goto err;
}
fdn->fd_tcp_sport = sport;
if((fdn->fd_tree_node = splaytree_insert(fd_tree, fdn)) == NULL ||
(fdn->fd_list_node = dlist_tail_push(fd_list, fdn)) == NULL)
{
goto err;
}
return fdn;
err:
if(fd != -1)
{
if(type == SCAMPER_FD_TYPE_TCP4)
scamper_tcp4_close(fd);
else if(type == SCAMPER_FD_TYPE_TCP6)
scamper_tcp6_close(fd);
}
if(fdn != NULL) fd_free(fdn);
return NULL;
}
int
opencons(void)
{
int r;
struct Fd* fd;
if ((r = fd_alloc(&fd)) < 0)
return r;
if ((r = sys_page_alloc(0, fd, PTE_P|PTE_U|PTE_W|PTE_SHARE)) < 0)
return r;
fd->fd_dev_id = devcons.dev_id;
fd->fd_omode = O_RDWR;
return fd2num(fd);
}
int fd_open(int uid, const char *path, uint32_t flags) {
int fd;
if ((fd = fd_alloc()) < 0)
return fd;
//if ((vfs_file_descriptor[fd].ino = _path_to_inode(0, path)) < 0)
// goto fail;
//vfs_file_descriptor[fd].pos = 0;
//vfs_file_descriptor[fd].
fail:
fd_return(fd);
return -ENOENT;
}
int
opencons(void)
{
int r;
struct Fd *fd;
if ((r = fd_alloc(&fd)) < 0)
return r;
if ((r = syscall_mem_alloc(0, (u_int)fd, PTE_V|PTE_R|PTE_LIBRARY)) < 0)
return r;
fd->fd_dev_id = devcons.dev_id;
fd->fd_omode = O_RDWR;
return fd2num(fd);
}
int sys_open(char *name, unsigned int mode)
{
struct file *file;
int fd = fd_alloc();
if (fd < 0)
goto out;
file = file_open(name, mode);
if (!file)
goto out_free_fd;
fd_save_file(fd, file);
return fd;
out_free_fd:
fd_free(fd);
out:
return -1;
}
int sys_mkdir(char *path, unsigned int mode)
{
struct file *file;
int fd = fd_alloc();
if (fd < 0)
goto out;
file = file_mkdir(path, mode);
if (!file)
goto out_free_fd;
fd_save_file(fd, file);
return fd;
out_free_fd:
fd_free(fd);
out:
return -1;
}
void
host_ipc_init()
{
int r;
if ((r = fd_alloc(&host_fd)) < 0)
panic("Couldn't allocate an fd!");
strcpy(host_fsipcbuf.open.req_path, HOST_FS_FILE);
host_fsipcbuf.open.req_omode = O_RDWR;
if ((r = host_fsipc(FSREQ_OPEN, host_fd)) < 0) {
fd_close(host_fd, 0);
panic("Couldn't open host file!");
}
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
// file descriptor.
// LAB 5: Your code here.
//panic("open not implemented");
int result;
struct Fd *fd_instance;
if(strlen(path) >= MAXPATHLEN)
{
cprintf("open() error: path is too long");
return -E_BAD_PATH;
}
if((result=fd_alloc(&fd_instance)) < 0)
{
return result;
}
strcpy(fsipcbuf.open.req_path, path);
fsipcbuf.open.req_omode=mode;
if((result=fsipc(FSREQ_OPEN, (void *)fd_instance)) < 0)
{
fd_close(fd_instance, 0);
return result;
}
else
{
return fd2num(fd_instance);
}
}
void
host_ipc_init()
{
int r;
if ((r = fd_alloc(&host_fd)) < 0)
//if(( host_fd = (struct Fd*)malloc(sizeof(host_fd)))< 0)
if((r = sys_page_alloc(0, (void*)host_fd, PTE_P|PTE_W|PTE_U)) < 0)
panic("Couldn't allocate an fd!");
strcpy(host_fsipcbuf.open.req_path, HOST_FS_FILE);
host_fsipcbuf.open.req_omode = O_RDWR;
if ((r = host_fsipc(FSREQ_OPEN, host_fd)) < 0) {
fd_close(host_fd, 0);
panic("Couldn't open host file!");
}
}
int _epoll_create(int ignored)
{
int i, fd;
struct epoll_file *ef = NULL;
struct file *f = NULL;
/* find epoll_file struct */
for(i = 0; i < EPOLL_MAXFDS; i++) {
if(!files[i].file) {
ef = &files[i];
break;
}
}
if(!ef) {
errno = ENOMEM;
return -1;
}
/* allocate file struct */
f = file_alloc();
if(!f) {
errno = ENOMEM;
return -1;
}
/* allocate fd */
fd = fd_alloc(f);
if(fd == -1) {
file_close(f);
errno = EMFILE;
return -1;
}
/* got everything, fill out structures */
f->f_ops = &epoll_operations;
f->f_cookie_ptr = (void *)ef;
ef->file = f;
for(i = 0; i < EPOLL_MAXFDS; i++) {
ef->entries[i].fd = -1;
}
/* return fd */
return fd;
}
void
host_ipc_init()
{
int r;
if ((r = fd_alloc(&host_fd)) < 0)
panic("Couldn't allocate an fd!");
//r = sys_page_alloc(0, &host_fd, PTE_P | PTE_U | PTE_W);
//if (r < 0)
//{
// panic("Not Valid ALloc");
//}
strcpy(host_fsipcbuf.open.req_path, HOST_FS_FILE);
host_fsipcbuf.open.req_omode = O_RDWR;
if ((r = host_fsipc(FSREQ_OPEN, host_fd)) < 0) {
fd_close(host_fd, 0);
panic("Couldn't open host file!");
}
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
// file descriptor.
// LAB 5: Your code here.
int r;
struct Fd *fd;
r = fd_alloc(&fd);
if (r < 0) return r;
// DO NOT ALLOCATE !!
//r = sys_page_alloc(0, fd, PTE_U|PTE_W|PTE_P);
//if (r < 0) goto out;
if (strlen(path) >= MAXPATHLEN)
return -E_BAD_PATH;
strcpy(fsipcbuf.open.req_path, path);
fsipcbuf.open.req_omode = mode;
r = fsipc(FSREQ_OPEN, fd);
if (r < 0) goto out;
return fd2num(fd);
out:
assert(fd_close(fd, 0) == 0);
return r;
}
static scamper_fd_t *fd_null(int type)
{
scamper_fd_t *fdn = NULL, findme;
int fd = -1;
/* first check if a sharable fd exists for this type */
findme.type = type;
if((fdn = fd_find(&findme)) != NULL)
{
return fdn;
}
if(type == SCAMPER_FD_TYPE_RTSOCK) fd = scamper_rtsock_open();
else if(type == SCAMPER_FD_TYPE_IFSOCK) fd = socket(AF_INET, SOCK_DGRAM, 0);
else if(type == SCAMPER_FD_TYPE_IP4) fd = scamper_ip4_openraw();
if(fd == -1 || (fdn = fd_alloc(type, fd)) == NULL ||
(fdn->fd_tree_node = splaytree_insert(fd_tree, fdn)) == NULL ||
(fdn->fd_list_node = dlist_tail_push(fd_list, fdn)) == NULL)
{
goto err;
}
return fdn;
err:
if(fd != -1)
{
if(type == SCAMPER_FD_TYPE_RTSOCK)
scamper_rtsock_close(fd);
else if(type == SCAMPER_FD_TYPE_IFSOCK)
close(fd);
else if(type == SCAMPER_FD_TYPE_IP4)
scamper_ip4_close(fd);
}
if(fdn != NULL) fd_free(fdn);
return NULL;
}
// Open a file (or directory).
//
// Returns:
// The file descriptor index on success
// -E_BAD_PATH if the path is too long (>= MAXPATHLEN)
// < 0 for other errors.
int
open(const char *path, int mode)
{
// Find an unused file descriptor page using fd_alloc.
// Then send a file-open request to the file server.
// Include 'path' and 'omode' in request,
// and map the returned file descriptor page
// at the appropriate fd address.
// FSREQ_OPEN returns 0 on success, < 0 on failure.
//
// (fd_alloc does not allocate a page, it just returns an
// unused fd address. Do you need to allocate a page?)
//
// Return the file descriptor index.
// If any step after fd_alloc fails, use fd_close to free the
// file descriptor.
if (strlen(path) > MAXPATHLEN)
return -E_BAD_PATH;
struct Fd *fd;
int r;
if ((r < fd_alloc(&fd)) < 0)
return r;
strcpy(fsipcbuf.open.req_path, path);
fsipcbuf.open.req_omode = mode;
if ((r = fsipc(FSREQ_OPEN, fd)) < 0) {
fd_close(fd, 0);
return r;
}
return fd2num(fd);
panic("open not implemented");
}
/*
* open a directory
*/
void * opendir(const char * name)
{
char buf[MAX_PATH];
struct dir * dir;
struct file * fp;
int fd;
int err;
if((dir = malloc(sizeof(struct dir))) == NULL)
return NULL;
/* find empty slot for file descriptor. */
if((fd = fd_alloc(0)) < 0)
{
free(dir);
return NULL;
}
if((err = vfs_path_conv(name, buf)) !=0 )
{
free(dir);
fd_free(fd);
return NULL;
}
if((err = sys_opendir(buf, &fp)) != 0)
{
free(dir);
fd_free(fd);
return NULL;
}
set_fp(fd, fp);
dir->fd = fd;
return (void *)dir;
}
int
main (int argc, char *argv[])
{
int cl_sfd,adm_sfd, s,u;
int efd;
char small_buf[10];
struct epoll_event event;
struct epoll_event event2;
struct epoll_event *events;
struct ev_conn *tmpptr=NULL;
struct rlimit limit;
long maxfd = MAX_FD;
//allocate and check memory
limit.rlim_cur = maxfd;
limit.rlim_max = maxfd;
if ( setrlimit( RLIMIT_NOFILE, &limit ) == -1 ) {
perror( "unable to set new soft limit" );
return 1;
}
/* obtain hard/soft limit */
if ( getrlimit( RLIMIT_NOFILE, &limit ) == -1 ) {
perror( "unable to obtain limits" );
return 1;
} else {
printf( "FD limit = { hard : %d, soft : %d }\n",
limit.rlim_max, limit.rlim_cur );
}
ev_conn_ptr=(struct ev_conn *) malloc(sizeof(struct ev_conn)*MAX_CLIENTS);
if (ev_conn_ptr == NULL) {
fprintf(stderr,"malloc can't allocate memory !!!");
return 0;
}
//
//bind on the client port
fprintf(stderr,"Binding on the client port...\n");
cl_sfd = create_and_bind (CLIENT_PORT);
if (cl_sfd == -1)
abort();
s = make_socket_non_blocking (cl_sfd);
if (s == -1)
abort();
s = listen (cl_sfd, SOMAXCONN);
if (s == -1)
{
perror ("listen");
abort();
}
efd = epoll_create1 (0);
if (efd == -1)
{
perror ("epoll_create");
abort();
}
fprintf(stderr,"Client sfd %d\n",cl_sfd);
event.data.ptr = fd_alloc(cl_sfd);;
// event.data.u64 = 0;
// event.data.u32 = 0;
event.events = EPOLLIN | EPOLLET;
s = epoll_ctl (efd, EPOLL_CTL_ADD, cl_sfd, &event);
if (s == -1)
{
perror ("epoll_ctl");
abort();
}
//bind on the admin port
fprintf(stderr,"Binding on the admin port...\n");
adm_sfd = create_and_bind (ADMIN_PORT);
if (adm_sfd == -1)
abort();
s = make_socket_non_blocking (adm_sfd);
if (s == -1)
abort();
s = listen (adm_sfd, SOMAXCONN);
if (s == -1)
{
perror ("listen");
abort();
}
fprintf(stderr,"Admin sfd %d\n",adm_sfd);
event2.data.ptr = fd_alloc(adm_sfd);
// event2.data.u64 = 0;
// event2.data.u32 = 0;
event2.events = EPOLLIN | EPOLLET;
s = epoll_ctl (efd, EPOLL_CTL_ADD, adm_sfd, &event2);
if (s == -1)
{
perror ("epoll_ctl");
abort();
}
/* Buffer where events are returned */
events = calloc (MAXEVENTS, sizeof event);
/* The event loop */
while (1)
{
int n, i;
n = epoll_wait (efd, events, MAXEVENTS, -1);
for (i = 0; i < n; i++)
{
struct fd *tmpfd=events[i].data.ptr;
fprintf(stderr,"wait stopped with %d events fd %d\n",n,tmpfd->sock);
//continue;
if ((events[i].events & EPOLLERR) ||
(events[i].events & EPOLLHUP) ||
(!(events[i].events & EPOLLIN)))
{
/* An error has occured on this fd, or the socket is not
ready for reading (why were we notified then?) */
fprintf (stderr, "epoll error closing the socket or not error maybe\n");
fd_close(tmpfd);
continue;
}
else if (adm_sfd == tmpfd->sock)
{
fprintf(stderr,"admin connection\n");
/* We have a notification on the listening socket, which
means one or more incoming connections. */
while (1)
{
struct fd *allocfd=NULL;
struct sockaddr in_addr;
socklen_t in_len;
int infd;
char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
in_len = sizeof in_addr;
infd = accept (adm_sfd, &in_addr, &in_len);
if (infd == -1)
{
if ((errno == EAGAIN) ||
(errno == EWOULDBLOCK))
{
/* We have processed all incoming
connections. */
break;
}
else
{
perror ("accept");
break;
}
}
//TODO da comentiram dolniq zapis, poneje e izlishen ama sega za debug 6te go ostavq
s = getnameinfo (&in_addr, in_len,
hbuf, sizeof hbuf,
sbuf, sizeof sbuf,
NI_NUMERICHOST | NI_NUMERICSERV);
if (s == 0)
{
printf("Accepted Admin connection on descriptor %d "
"(host=%s, port=%s)\n", infd, hbuf, sbuf);
}
/* Make the incoming socket non-blocking and add it to the
list of fds to monitor. */
s = make_socket_non_blocking (infd);
if (s == -1)
abort();
allocfd=fd_alloc(infd);
allocfd->is_admin=1;
event.data.ptr = allocfd;
//event.data.u32 = 1;
event.events = EPOLLIN | EPOLLET;
s = epoll_ctl (efd, EPOLL_CTL_ADD, infd, &event);
if (s == -1)
{
perror ("epoll_ctl");
abort();
}
}
continue;
}
else if (cl_sfd == tmpfd->sock)
{
fprintf(stderr,"client connection\n");
/* We have a notification on the listening socket, which
means one or more incoming connections. */
while (1)
{
struct sockaddr in_addr;
socklen_t in_len;
int infd;
char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
in_len = sizeof in_addr;
infd = accept (cl_sfd, &in_addr, &in_len);
if (infd == -1)
{
if ((errno == EAGAIN) ||
(errno == EWOULDBLOCK))
{
/* We have processed all incoming
connections. */
break;
}
else
{
perror ("accept");
break;
}
}
//TODO da comentiram dolniq zapis, poneje e izlishen ama sega za debug 6te go ostavq
s = getnameinfo (&in_addr, in_len,
hbuf, sizeof hbuf,
sbuf, sizeof sbuf,
NI_NUMERICHOST | NI_NUMERICSERV);
if (s == 0)
{
printf("Accepted Client connection on descriptor %d "
"(host=%s, port=%s)\n", infd, hbuf, sbuf);
}
/* Make the incoming socket non-blocking and add it to the
list of fds to monitor. */
s = make_socket_non_blocking (infd);
if (s == -1)
abort();
event.data.ptr = fd_alloc(infd);
event.events = EPOLLIN | EPOLLET;
s = epoll_ctl (efd, EPOLL_CTL_ADD, infd, &event);
if (s == -1)
{
perror ("epoll_ctl");
abort();
}
}
continue;
}
else
{
/* We have data on the fd waiting to be read. Read and
display it. We must read whatever data is available
completely, as we are running in edge-triggered mode
and won't get a notification again for the same
data. */
int done = 0;
fprintf(stderr,"check\n");
if(tmpfd->is_admin)//admin socket
{
ssize_t count=0;
int local_ptr=-1;
int buf_i=0;
if(tmpfd->buffer==NULL)
{
tmpfd->buffer=ev_buffer_alloc(BUFFER_SIZE);
tmpfd->buffer->len=0;
}
fprintf(stderr,"buffer ne e null\n");
char *buf=tmpfd->buffer->buf;
while (1)
{
if(tmpfd->buffer->len>=BUFFER_SIZE)
{
fprintf(stderr,"max buffer size reached\n");
done=1;
break;
}
count = read (tmpfd->sock, buf+tmpfd->buffer->len, (BUFFER_SIZE-tmpfd->buffer->len));
fprintf(stderr,"4ete ot admin\n");
write(0,buf+tmpfd->buffer->len,count);
if (count == -1)
{
/* If errno == EAGAIN, that means we have read all
data. So go back to the main loop. */
if (errno != EAGAIN)
{
perror ("read");
done = 1;
}
break;
}
else if (count == 0)
{
/* End of file. The remote has closed the
connection. */
done = 1;
break;
}
tmpfd->buffer->len+=count;
fprintf(stderr,"tmpfd->buffer->len e %d\n",tmpfd->buffer->len);
/* Write the buffer to standard output */
if(tmpfd->cur_ptr<0)
{
if(buf[0]=='\n' || buf[0]=='\r') // new key
{
u=0;
while(u<ERROR_LOOP) //TODO to fix this da po4ne da 4isti socketite kogato sa na 80% pulni
{
fprintf(stderr,"vleze v cikula i vurti u\n");
cur_ptr++;
if(cur_ptr==MAX_CLIENTS)
{
cur_ptr=1;
u++;
}
tmpptr=ev_conn_ptr+cur_ptr;
if(!tmpptr->sock && tmpptr->buffer==NULL)
{
fprintf(stderr,"cur_ptr e %d\n",cur_ptr);
sprintf(small_buf, "%d", cur_ptr);
//key generation
fprintf(stderr,"small_buf e %s\n",small_buf);
write(tmpfd->sock,small_buf,strlen(small_buf));
fprintf(stderr,"brum2\n");
//tmpfd->cur_ptr=cur_ptr;
//adding the socket to the memory
//tmpptr->sock=tmpfd->sock;
break;
}
}
if(u==ERROR_LOOP)
{
fprintf(stderr,"no free fds\n");
write(tmpfd->sock,"ERROR",5);
//TODO to send reconnect signals to the clients and to free the all fds
abort();
}
fprintf(stderr,"key %d\n",cur_ptr);
done=1;
break;
}
else
{
fprintf(stderr,"chete admina kum koi client 6te se vurje\n");
// write (0, buf, count);
for(buf_i=0;buf_i<9 && *(buf+buf_i)!='\n' && *(buf+buf_i)!='\r';buf_i++)small_buf[buf_i]=*(buf+buf_i);
small_buf[buf_i]='\0';
local_ptr=strtol(small_buf, NULL, 10);
fprintf(stderr,"local_ptr se okaza %d\n",local_ptr);
tmpfd->buffer->offset=(buf_i+1);
if(tmpfd->buffer->offset>tmpfd->buffer->len)
{
fprintf(stderr,"ERROR , the offset is bigger than the len.This should not happen\n");
return -1;
}
if(!local_ptr || local_ptr>MAX_CLIENTS)
{
fprintf(stderr,"ERROR wrong number\n");
write(tmpfd->sock,"ERROR",5);
close(tmpfd->sock);
tmpfd->sock=0;
break;
//error
}
tmpfd->cur_ptr=local_ptr;
fprintf(stderr,"DEBUG count %d\n",count);
fprintf(stderr,"DEBUG buf_i %d\n",buf_i);
}
}
}
if (done)
{
if((tmpfd->cur_ptr)>=0)
{
tmpptr=ev_conn_ptr+tmpfd->cur_ptr;
//buf[count]='\0';//TODO tova da go vidq dali nqma da otreje posledniq symbol
if(tmpptr->sock)
{
fprintf(stderr,"ima clientski socket za %d i pi6e v nego\n",tmpfd->cur_ptr);
s = write (tmpptr->sock, tmpfd->buffer->buf+tmpfd->buffer->offset, tmpfd->buffer->len-tmpfd->buffer->offset);
s = write (0, tmpfd->buffer->buf+tmpfd->buffer->offset, tmpfd->buffer->len-tmpfd->buffer->offset);
if (s == -1)
{
perror ("write");
write(tmpfd->sock,"ERROR",5);
close(tmpfd->sock);
tmpfd->sock=0;
//nikov
if(tmpptr->sock){close(tmpptr->sock);tmpptr->sock=0;}
ev_buffer_free(tmpfd->buffer);
tmpfd->buffer=NULL;
break;
}
//closing the client socket
if(tmpptr->sock)close(tmpptr->sock);
tmpptr->sock=0;
ev_buffer_free(tmpfd->buffer);
tmpfd->buffer=NULL;
//if(tmpptr->buffer!=NULL)ev_buffer_free(tmpptr->buffer);
}
else
{
fprintf(stderr,"zapisva v buffer za %d golqm %d,\n",tmpfd->cur_ptr,tmpfd->buffer->len);
tmpptr->buffer=tmpfd->buffer;
}
}
printf ("Closed connection on descriptor %d\n",
tmpfd->sock);
/* Closing the descriptor will make epoll remove it
from the set of descriptors which are monitored. */
tmpfd->buffer=NULL;
close (tmpfd->sock);
}
}
else // client socket
{
char buf[BUFFER_SIZE];
long int local_ptr=-1;
int buf_i=0;
int tmp=0;
int i=0;
int error=0;
ssize_t count;
while (1)
{
ssize_t count;
count = read (tmpfd->sock, buf,BUFFER_SIZE);
fprintf(stderr,"client count %d\n",count);
if (count == -1)
{
/* If errno == EAGAIN, that means we have read all
data. So go back to the main loop. */
if (errno != EAGAIN)
{
perror ("read");
done = 1;
}
break;
}
else if (count == 0)
{
/* End of file. The remote has closed the
connection. */
done = 1;
break;
}
if (strncmp(buf,"GET ",4))
{
break;
}
for(i=0;i<count;i++)
{
fprintf(stderr,"%c %d\n",buf[i],i);
if(buf[i]=='\r' || buf[i]=='\n')
{
break;
}
}
if(i==count)
{
fprintf(stderr,"strange error in http protocol\n");
fd_close(tmpfd);
break;
}
fprintf(stderr,"i e %d\n",i);
count=i;
if(count <5)
{
fprintf(stderr,"ERROR count out of boundaries\n");
error=1;
break;
}
fprintf(stderr,"buf+4 e %c\n",*(buf+4));
buf_i=findend(buf+4,count);
fprintf(stderr,"bif_i e %d\n",buf_i);
buf[buf_i+4]='\0';
tmp=buf_i;
for(;buf[buf_i+4]!='/' && buf_i>0;buf_i--);
if((tmp-(buf_i+1))>9)
{
fprintf(stderr,"ERROR count out of boundaries 2\n");
error=1;
break;
}
tmp=0;
local_ptr = strtol(buf+4+buf_i+1, NULL, 10);
fprintf(stderr,"local_ptr e %lld\n",local_ptr);
if(local_ptr==0)
{
fprintf(stderr,"ERROR local_ptr is 0 for some reason\n");
error=1;
break;
}
if(local_ptr>MAX_CLIENTS)
{
fprintf(stderr,"ERROR local_ptr %ld",local_ptr);
error=1;
break;
}
tmpptr=ev_conn_ptr+local_ptr;
if(tmpptr->sock)
{
fprintf(stderr,"ERROR tmpptr->sock %d",tmpptr->sock);
error=1;
break;
}
tmpptr->sock=tmpfd->sock;
tmpfd->cur_ptr=local_ptr;
done=1;
}
if(error)
{
s = write (tmpfd->sock, HEADER_BUSY, HEADER_LEN_BUSY);
fd_close(tmpfd);tmpfd->sock=0;
}
else if (done && tmpfd->cur_ptr!=-1)
{
tmpptr=ev_conn_ptr+tmpfd->cur_ptr;
s = write (tmpptr->sock, HEADER, HEADER_LEN);
if(tmpptr->buffer!=NULL)
{
fprintf(stderr,"buffer ne e NULL len e %d\n",tmpptr->buffer->len);
fprintf(stderr,"offset\n");
fprintf(stderr,"buffer ne e NULL offset e %d\n",tmpptr->buffer->offset);
//for(i=0;i<tmpptr->buffer->len;i++)fprintf(stderr,"%c %d\n",tmpptr->buffer->buf);
s = write (tmpptr->sock, tmpptr->buffer->buf+tmpptr->buffer->offset, tmpptr->buffer->len-tmpptr->buffer->offset);
write(0,tmpptr->buffer->buf+tmpptr->buffer->offset,tmpptr->buffer->len-tmpptr->buffer->offset);
fprintf(stderr,"close\n");
fd_close(tmpfd);
tmpptr->sock=0;
fprintf(stderr,"sock 0\n");
ev_buffer_free(tmpptr->buffer);
fprintf(stderr,"free\n");
tmpptr->buffer=NULL;
}
}
else if(done)
{
fprintf(stderr,"nqma cur_ptr i e done taka 4e zatvarq conneciqta\n");
fd_close(tmpfd);tmpfd->sock=0;
}
}
}
}
}
free (events);
close (adm_sfd);
close (cl_sfd);
return EXIT_SUCCESS;
}
static scamper_fd_t *fd_udp(int type, void *addr, uint16_t sport)
{
scamper_fd_t *fdn, findme;
size_t len = 0;
int fd = -1;
findme.type = type;
findme.fd_udp_addr = addr;
findme.fd_udp_sport = sport;
if((fdn = fd_find(&findme)) != NULL)
return fdn;
if(type == SCAMPER_FD_TYPE_UDP4)
{
fd = scamper_udp4_openraw(addr);
len = sizeof(struct in_addr);
}
else if(type == SCAMPER_FD_TYPE_UDP6)
{
fd = scamper_udp6_open(addr, sport);
len = sizeof(struct in6_addr);
}
else if(type == SCAMPER_FD_TYPE_UDP4DG)
{
fd = scamper_udp4_opendgram(addr, sport);
len = sizeof(struct in_addr);
}
if(fd == -1 || (fdn = fd_alloc(type, fd)) == NULL ||
(addr != NULL && (fdn->fd_udp_addr = memdup(addr, len)) == NULL))
{
printerror(errno, strerror, __func__, "could not open socket");
goto err;
}
fdn->fd_udp_sport = sport;
if((fdn->fd_tree_node = splaytree_insert(fd_tree, fdn)) == NULL)
{
printerror(errno, strerror, __func__, "could not add socket to tree");
goto err;
}
if((fdn->fd_list_node = dlist_tail_push(fd_list, fdn)) == NULL)
{
printerror(errno, strerror, __func__, "could not add socket to list");
goto err;
}
return fdn;
err:
if(fd != -1)
{
if(type == SCAMPER_FD_TYPE_UDP4 || type == SCAMPER_FD_TYPE_UDP4DG)
scamper_udp4_close(fd);
else if(type == SCAMPER_FD_TYPE_UDP6)
scamper_udp6_close(fd);
}
if(fdn != NULL) fd_free(fdn);
return NULL;
}