Browse Source

Example NFS server using libnfs

master
Vitaliy Filippov 12 months ago
commit
848e497970
  1. 2
      Makefile
  2. 48
      make-stub.js
  3. 542
      nfs-server.c
  4. 355
      nfs-service.c
  5. 11
      nfs-service.h

2
Makefile

@ -0,0 +1,2 @@
nfs-server: nfs-server.c nfs-service.c nfs-service.h
gcc -g -I/usr/include/nfsc nfs-server.c nfs-service.c -o nfs-server -lnfs -levent

48
make-stub.js

@ -0,0 +1,48 @@
const rpc = [
'GETATTR',
'SETATTR',
'LOOKUP',
'ACCESS',
'READLINK',
'READ',
'WRITE',
'CREATE',
'MKDIR',
'SYMLINK',
'MKNOD',
'REMOVE',
'RMDIR',
'RENAME',
'LINK',
'READDIR',
'READDIRPLUS',
'FSSTAT',
'FSINFO',
'PATHCONF',
'COMMIT',
];
const len = rpc.reduce((a, c) => a < c.length ? c.length : a, 0);
let t = '';
let s = '';
for (const f of rpc)
{
let pad = '';
for (let i = f.length; i < len; i++)
pad += ' ';
t += ` {NFS3_${f}, ${pad}nfs3_${f.toLowerCase()}_proc, ${pad}(zdrproc_t)zdr_${f}3args, ${pad}sizeof(${f}3args)},\n`;
s += `static int nfs3_${f.toLowerCase()}_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
${f}3args *args = call->body.cbody.args;
${f}3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_${f}3res, sizeof(${f}3res));
return 0;
}
`;
}
t = `struct service_proc nfs3_pt[] = {\n${t}};\n`;
console.log(t);
console.log(s);

542
nfs-server.c

@ -0,0 +1,542 @@
#define _FILE_OFFSET_BITS 64
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <poll.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <time.h>
#include <event2/event.h>
#include "nfs-service.h"
struct event_base *base;
struct server
{
struct rpc_context *rpc;
struct event *read_event;
struct event *write_event;
};
struct mapping
{
struct mapping *next;
u_int prog;
u_int vers;
int port;
char *netid;
char *addr;
char *owner;
};
struct mapping *map;
void free_map_item(struct mapping *item)
{
free(item->netid);
free(item->addr);
free(item->owner);
free(item);
}
static void free_server(struct server *server)
{
if (server->rpc)
{
rpc_disconnect(server->rpc, NULL);
rpc_destroy_context(server->rpc);
}
if (server->read_event)
{
event_free(server->read_event);
}
if (server->write_event)
{
event_free(server->write_event);
}
free(server);
}
/*
* Based on the state of libnfs and its context, update libevent
* accordingly regarding which events we are interested in.
*/
static void update_events(struct rpc_context *rpc, struct event *read_event, struct event *write_event)
{
int events = rpc_which_events(rpc);
if (read_event)
{
if (events & POLLIN)
event_add(read_event, NULL);
else
event_del(read_event);
}
if (write_event)
{
if (events & POLLOUT)
event_add(write_event, NULL);
else
event_del(write_event);
}
}
/*
* Add a registration for program,version,netid.
*/
int pmap_register(int prog, int vers, char *netid, char *addr, char *owner)
{
struct mapping *item;
char *str;
int count = 0;
item = malloc(sizeof(struct mapping));
item->prog = prog;
item->vers = vers;
item->netid = netid;
item->addr = addr;
item->owner = owner;
/* The port are the last two dotted decimal fields in the address */
for (str = item->addr + strlen(item->addr) - 1; str >= item->addr; str--)
{
if (*str != '.')
{
if (*str < '0' || *str > '9')
break;
continue;
}
count++;
if (count == 2)
{
int high, low;
sscanf(str, ".%d.%d", &high, &low);
item->port = high * 256 + low;
break;
}
}
item->next = map;
map = item;
}
/*
* Find and return a registration matching program,version,netid.
*/
struct mapping *map_lookup(int prog, int vers, char *netid)
{
struct mapping *tmp;
for (tmp = map; tmp; tmp = tmp->next)
{
if (tmp->prog != prog)
continue;
if (tmp->vers != vers)
continue;
if (strcmp(tmp->netid, netid))
continue;
return tmp;
}
return NULL;
}
/*
* Remove a registration from our map or registrations.
*/
void map_remove(int prog, int vers, char *netid)
{
struct mapping *prev = NULL;
struct mapping *tmp;
for (tmp = map; tmp; prev = tmp, tmp = tmp->next)
{
if (tmp->prog != prog)
continue;
if (tmp->vers != vers)
continue;
if (strcmp(tmp->netid, netid))
continue;
break;
}
if (tmp == NULL)
return;
if (prev)
prev->next = tmp->next;
else
map = tmp->next;
free_map_item(tmp);
return;
}
/*
* The NULL procedure. All protocols/versions must provide a NULL procedure
* as index 0.
* It is used by clients, and rpcinfo, to "ping" a service and verify that
* the service is available and that it does support the indicated version.
*/
static int pmap2_null_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
return 0;
}
/*
* v2 GETPORT.
* This is the lookup function for portmapper version 2.
* A client provides program, version and protocol (tcp or udp)
* and portmapper returns which port that service is available on,
* (or 0 if no such program is registered.)
*/
static int pmap2_getport_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PMAP2GETPORTargs *args = call->body.cbody.args;
struct mapping *tmp;
char *netid;
uint32_t port = 0;
if (args->prot == IPPROTO_TCP)
netid = "tcp";
else
netid = "udp";
tmp = map_lookup(args->prog, args->vers, netid);
if (tmp)
port = tmp->port;
rpc_send_reply(rpc, call, &port, (zdrproc_t)zdr_uint32_t, sizeof(uint32_t));
return 0;
}
/*
* v2 DUMP.
* This RPC returns a list of all endpoints that are registered with
* portmapper.
*/
static int pmap2_dump_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PMAP2DUMPres reply;
struct mapping *tmp;
reply.list = NULL;
for (tmp = map; tmp; tmp = tmp->next)
{
struct pmap2_mapping_list *tmp_list;
int proto;
/* pmap2 only support ipv4 */
if (!strcmp(tmp->netid, "tcp"))
proto = IPPROTO_TCP;
else if (!strcmp(tmp->netid, "udp"))
proto = IPPROTO_UDP;
else
continue;
tmp_list = malloc(sizeof(struct pmap2_mapping_list));
tmp_list->map.prog = tmp->prog;
tmp_list->map.vers = tmp->vers;
tmp_list->map.prot = proto;
tmp_list->map.port = tmp->port;
tmp_list->next = reply.list;
reply.list = tmp_list;
}
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_PMAP2DUMPres, sizeof(PMAP2DUMPres));
while (reply.list)
{
struct pmap2_mapping_list *tmp_list = reply.list->next;
free(reply.list);
reply.list = tmp_list;
}
return 0;
}
/*
* v2 SET
* This procedure is used to register and endpoint with portmapper.
*/
static int pmap2_set_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PMAP2GETPORTargs *args = call->body.cbody.args;
char *prot;
char *addr;
uint32_t response = 1;
if (args->prot == IPPROTO_TCP)
prot = "tcp";
else
prot = "udp";
/* Don't update if we already have a mapping */
if (map_lookup(args->prog, args->vers, prot))
{
response = 0;
rpc_send_reply(rpc, call, &response, (zdrproc_t)zdr_uint32_t, sizeof(uint32_t));
return 0;
}
asprintf(&addr, "0.0.0.0.%d.%d", args->port >> 8, args->port & 0xff);
pmap_register(args->prog, args->vers, strdup(prot), addr, strdup("<unknown>"));
rpc_send_reply(rpc, call, &response, (zdrproc_t)zdr_uint32_t, sizeof(uint32_t));
return 0;
}
/*
* v2 UNSET
* This procedure is used to remove a registration from portmappers
* list of endpoints.
*/
static int pmap2_unset_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PMAP2GETPORTargs *args = call->body.cbody.args;
char *prot;
char *addr;
uint32_t response = 1;
if (args->prot == IPPROTO_TCP)
prot = "tcp";
else
prot = "udp";
map_remove(args->prog, args->vers, prot);
rpc_send_reply(rpc, call, &response, (zdrproc_t)zdr_uint32_t, sizeof(uint32_t));
return 0;
}
/*
* Service table for portmapper v2.
*
* Service management is table driven in libnfsand this is the table
* that defines which procedures we implement for portmapper v2.
* If clients try to connect to the not-yet-implemented procedures here
* libnfs will automatically respond with an RPC layer error that flags
* PROCEDURE UNAVAILABLE.
*
* This table contains the procedure number, the callback function to implement
* this procedure, the unmarshalling function that libnfs should use to unppack
* the client payload as well as its size.
*
* Version 2 does not support ipv6 so this version of portmapper is
* not too commonly used any more.
*/
struct service_proc pmap2_pt[] = {
{PMAP2_NULL, pmap2_null_proc, (zdrproc_t)zdr_void, 0},
{PMAP2_SET, pmap2_set_proc, (zdrproc_t)zdr_PMAP2SETargs, sizeof(PMAP2SETargs)},
{PMAP2_UNSET, pmap2_unset_proc, (zdrproc_t)zdr_PMAP2UNSETargs, sizeof(PMAP2UNSETargs)},
{PMAP2_GETPORT, pmap2_getport_proc, (zdrproc_t)zdr_PMAP2GETPORTargs, sizeof(PMAP2GETPORTargs)},
{PMAP2_DUMP, pmap2_dump_proc, (zdrproc_t)zdr_void, 0},
//{PMAP2_CALLIT, pmap2_...},
};
/*
* The NULL procedure. All protocols/versions must provide a NULL procedure
* as index 0.
* It is used by clients, and rpcinfo, to "ping" a service and verify that
* the service is available and that it does support the indicated version.
*/
static int pmap3_null_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
return 0;
}
/*
* v3 DUMP.
* This RPC returns a list of all endpoints that are registered with
* portmapper.
*/
static int pmap3_dump_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PMAP3DUMPres reply;
struct mapping *tmp;
reply.list = NULL;
for (tmp = map; tmp; tmp = tmp->next)
{
struct pmap3_mapping_list *tmp_list;
tmp_list = malloc(sizeof(struct pmap3_mapping_list));
tmp_list->map.prog = tmp->prog;
tmp_list->map.vers = tmp->vers;
tmp_list->map.netid = tmp->netid;
tmp_list->map.addr = tmp->addr;
tmp_list->map.owner = tmp->owner;
tmp_list->next = reply.list;
reply.list = tmp_list;
}
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_PMAP3DUMPres, sizeof(PMAP3DUMPres));
while (reply.list)
{
struct pmap3_mapping_list *tmp_list = reply.list->next;
free(reply.list);
reply.list = tmp_list;
}
return 0;
}
/*
* Service table for portmapper v3.
*
* Service management is table driven in libnfs and this is the table
* that defines which procedures we implement for portmapper v3.
* If clients try to connect to the not-yet-implemented procedures here
* libnfs will automatically respond with an RPC layer error that flags
* PROCEDURE UNAVAILABLE.
*
* This table contains the procedure number, the callback function to implement
* this procedure, the unmarshalling function that libnfs should use to unppack
* the client payload as well as its size.
*/
struct service_proc pmap3_pt[] = {
{PMAP3_NULL, pmap3_null_proc, (zdrproc_t)zdr_void, 0},
//{PMAP3_SET, pmap3_...},
//{PMAP3_UNSET, pmap3_...},
//{PMAP3_GETADDR, pmap3_...},
{PMAP3_DUMP, pmap3_dump_proc, (zdrproc_t)zdr_void, 0},
//{PMAP3_CALLIT, pmap3_...},
//{PMAP3_GETTIME, pmap3_...},
//{PMAP3_UADDR2TADDR, pmap3_...},
//{PMAP3_TADDR2UADDR, pmap3_...},
};
// Handle incoming event
static void server_io(evutil_socket_t fd, short events, void *private_data)
{
struct server *server = private_data;
int revents = 0;
if (events & EV_READ)
revents |= POLLIN;
if (events & EV_WRITE)
revents |= POLLOUT;
// Let libnfs process the event
if (rpc_service(server->rpc, revents) < 0)
{
free_server(server);
return;
}
// Update which events we are interested in
update_events(server->rpc, server->read_event, server->write_event);
}
// Accept a connection
static void do_accept(evutil_socket_t s, short events, void *private_data)
{
struct sockaddr_storage ss;
socklen_t len = sizeof(ss);
struct server *server;
int fd;
server = malloc(sizeof(struct server));
if (server == NULL)
return;
memset(server, 0, sizeof(*server));
if ((fd = accept(s, (struct sockaddr *)&ss, &len)) < 0)
{
free_server(server);
return;
}
evutil_make_socket_nonblocking(fd);
server->rpc = rpc_init_server_context(fd);
if (server->rpc == NULL)
{
close(fd);
free_server(server);
return;
}
// portmap
rpc_register_service(server->rpc, PMAP_PROGRAM, PMAP_V2, pmap2_pt, sizeof(pmap2_pt) / sizeof(pmap2_pt[0]));
rpc_register_service(server->rpc, PMAP_PROGRAM, PMAP_V3, pmap3_pt, sizeof(pmap3_pt) / sizeof(pmap3_pt[0]));
// NFS
rpc_register_service(server->rpc, NFS_PROGRAM, NFS_V3, nfs3_pt, sizeof(nfs3_pt) / sizeof(nfs3_pt[0]));
rpc_register_service(server->rpc, MOUNT_PROGRAM, MOUNT_V3, nfs3_mount_pt, sizeof(nfs3_mount_pt) / sizeof(nfs3_mount_pt[0]));
// read and write events
server->read_event = event_new(base, fd, EV_READ|EV_PERSIST, server_io, server);
server->write_event = event_new(base, fd, EV_WRITE|EV_PERSIST, server_io, server);
update_events(server->rpc, server->read_event, server->write_event);
}
int main(int argc, char *argv[])
{
struct sockaddr_in in;
int one = 1;
base = event_base_new();
if (base == NULL)
{
printf("Failed create event context\n");
exit(10);
}
in.sin_family = AF_INET;
in.sin_port = htons(111);
in.sin_addr.s_addr = htonl(INADDR_ANY);
pmap_register(PMAP_PROGRAM, PMAP_V2, strdup("tcp"), strdup("0.0.0.0.0.111"), strdup("portmapper-service"));
pmap_register(PMAP_PROGRAM, PMAP_V3, strdup("tcp"), strdup("0.0.0.0.0.111"), strdup("portmapper-service"));
pmap_register(NFS_PROGRAM, NFS_V3, strdup("tcp"), strdup("0.0.0.0.0.2049"), strdup("nfs-server"));
pmap_register(MOUNT_PROGRAM, MOUNT_V3, strdup("tcp"), strdup("0.0.0.0.0.2049"), strdup("rpc.mountd"));
// Portmap socket
int listen_socket = socket(AF_INET, SOCK_STREAM, 0);
if (listen_socket == -1)
{
printf("Failed to create listening socket\n");
exit(10);
}
evutil_make_socket_nonblocking(listen_socket);
setsockopt(listen_socket, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
if (bind(listen_socket, (struct sockaddr *)&in, sizeof(in)) < 0)
{
printf("Failed to bind listening socket\n");
exit(10);
}
if (listen(listen_socket, 16) < 0)
{
printf("failed to listen to socket\n");
exit(10);
}
struct event *listen_event = event_new(base, listen_socket, EV_READ|EV_PERSIST, do_accept, NULL);
event_add(listen_event, NULL);
// NFS socket
int nfs_socket = socket(AF_INET, SOCK_STREAM, 0);
if (nfs_socket == -1)
{
printf("Failed to create listening socket\n");
exit(10);
}
evutil_make_socket_nonblocking(nfs_socket);
setsockopt(nfs_socket, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
in.sin_family = AF_INET;
in.sin_port = htons(2049);
in.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(nfs_socket, (struct sockaddr *)&in, sizeof(in)) < 0)
{
printf("Failed to bind listening socket\n");
exit(10);
}
if (listen(nfs_socket, 16) < 0)
{
printf("failed to listen to socket\n");
exit(10);
}
listen_event = event_new(base, nfs_socket, EV_READ|EV_PERSIST, do_accept, NULL);
event_add(listen_event, NULL);
// Start the event loop
event_base_dispatch(base);
return 0;
}

355
nfs-service.c

@ -0,0 +1,355 @@
#include <stdlib.h>
#include <string.h>
#include "nfs-service.h"
static void fill_example_fsattr(struct fattr3 *attr)
{
struct timespec now;
clock_gettime(CLOCK_REALTIME, &now);
attr->type = NF3DIR;
attr->mode = 0755;
attr->nlink = 1;
attr->uid = 0;
attr->gid = 0;
attr->size = 4096;
attr->used = 4096;
attr->rdev = (specdata3){ 0, 0 };
attr->fsid = 1;
attr->fileid = 1;
attr->atime.seconds = now.tv_sec;
attr->atime.nseconds = now.tv_nsec;
attr->mtime = attr->atime;
attr->ctime = attr->atime;
}
static int nfs3_null_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
return 0;
}
static int nfs3_getattr_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
GETATTR3args *args = call->body.cbody.args;
GETATTR3res reply;
if (args->object.data.data_len != 10)
{
// Example error
reply.status = NFS3ERR_PERM;
}
else
{
// Fill info
reply.status = NFS3_OK;
fill_example_fsattr(&reply.GETATTR3res_u.resok.obj_attributes);
}
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_GETATTR3res, sizeof(GETATTR3res));
return 0;
}
static int nfs3_setattr_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
SETATTR3args *args = call->body.cbody.args;
SETATTR3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SETATTR3res, sizeof(SETATTR3res));
return 0;
}
static int nfs3_lookup_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
LOOKUP3args *args = call->body.cbody.args;
LOOKUP3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_LOOKUP3res, sizeof(LOOKUP3res));
return 0;
}
static int nfs3_access_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
ACCESS3args *args = call->body.cbody.args;
ACCESS3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_ACCESS3res, sizeof(ACCESS3res));
return 0;
}
static int nfs3_readlink_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
READLINK3args *args = call->body.cbody.args;
READLINK3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READLINK3res, sizeof(READLINK3res));
return 0;
}
static int nfs3_read_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
READ3args *args = call->body.cbody.args;
READ3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READ3res, sizeof(READ3res));
return 0;
}
static int nfs3_write_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
WRITE3args *args = call->body.cbody.args;
WRITE3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_WRITE3res, sizeof(WRITE3res));
return 0;
}
static int nfs3_create_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
CREATE3args *args = call->body.cbody.args;
CREATE3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_CREATE3res, sizeof(CREATE3res));
return 0;
}
static int nfs3_mkdir_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
MKDIR3args *args = call->body.cbody.args;
MKDIR3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_MKDIR3res, sizeof(MKDIR3res));
return 0;
}
static int nfs3_symlink_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
SYMLINK3args *args = call->body.cbody.args;
SYMLINK3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SYMLINK3res, sizeof(SYMLINK3res));
return 0;
}
static int nfs3_mknod_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
MKNOD3args *args = call->body.cbody.args;
MKNOD3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_MKNOD3res, sizeof(MKNOD3res));
return 0;
}
static int nfs3_remove_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
REMOVE3args *args = call->body.cbody.args;
REMOVE3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_REMOVE3res, sizeof(REMOVE3res));
return 0;
}
static int nfs3_rmdir_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
RMDIR3args *args = call->body.cbody.args;
RMDIR3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_RMDIR3res, sizeof(RMDIR3res));
return 0;
}
static int nfs3_rename_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
RENAME3args *args = call->body.cbody.args;
RENAME3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_RENAME3res, sizeof(RENAME3res));
return 0;
}
static int nfs3_link_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
LINK3args *args = call->body.cbody.args;
LINK3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_LINK3res, sizeof(LINK3res));
return 0;
}
static int nfs3_readdir_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
READDIR3args *args = call->body.cbody.args;
READDIR3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIR3res, sizeof(READDIR3res));
return 0;
}
static int nfs3_readdirplus_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
READDIRPLUS3args *args = call->body.cbody.args;
READDIRPLUS3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIRPLUS3res, sizeof(READDIRPLUS3res));
return 0;
}
static int nfs3_fsstat_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
FSSTAT3args *args = call->body.cbody.args;
FSSTAT3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_FSSTAT3res, sizeof(FSSTAT3res));
return 0;
}
static int nfs3_fsinfo_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
FSINFO3args *args = call->body.cbody.args;
FSINFO3res reply;
if (args->fsroot.data.data_len != 10)
{
// Example error
reply.status = NFS3ERR_INVAL;
}
else
{
// Fill info
reply.status = NFS3_OK;
reply.FSINFO3res_u.resok.obj_attributes.attributes_follow = TRUE;
fill_example_fsattr(&reply.FSINFO3res_u.resok.obj_attributes.post_op_attr_u.attributes);
reply.FSINFO3res_u.resok.rtmax = 128*1024*1024;
reply.FSINFO3res_u.resok.rtpref = 128*1024*1024;
reply.FSINFO3res_u.resok.rtmult = 4096;
reply.FSINFO3res_u.resok.wtmax = 128*1024*1024;
reply.FSINFO3res_u.resok.wtpref = 128*1024*1024;
reply.FSINFO3res_u.resok.wtmult = 4096;
reply.FSINFO3res_u.resok.dtpref = 128;
reply.FSINFO3res_u.resok.maxfilesize = 0x7fffffffffffffff;
reply.FSINFO3res_u.resok.time_delta.seconds = 1;
reply.FSINFO3res_u.resok.time_delta.nseconds = 0;
reply.FSINFO3res_u.resok.properties = FSF3_SYMLINK | FSF3_HOMOGENEOUS;
}
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_FSINFO3res, sizeof(FSINFO3res));
return 0;
}
static int nfs3_pathconf_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
PATHCONF3args *args = call->body.cbody.args;
PATHCONF3res reply;
if (args->object.data.data_len != 10)
{
// Example error
reply.status = NFS3ERR_INVAL;
}
else
{
// Fill info
reply.status = NFS3_OK;
reply.PATHCONF3res_u.resok.obj_attributes.attributes_follow = FALSE;
reply.PATHCONF3res_u.resok.linkmax = 0;
reply.PATHCONF3res_u.resok.name_max = 255;
reply.PATHCONF3res_u.resok.no_trunc = TRUE;
reply.PATHCONF3res_u.resok.chown_restricted = FALSE;
reply.PATHCONF3res_u.resok.case_insensitive = FALSE;
reply.PATHCONF3res_u.resok.case_preserving = TRUE;
}
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_PATHCONF3res, sizeof(PATHCONF3res));
return 0;
}
static int nfs3_commit_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
COMMIT3args *args = call->body.cbody.args;
COMMIT3res reply;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_COMMIT3res, sizeof(COMMIT3res));
return 0;
}
static int mount3_mnt_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
dirpath *arg = call->body.cbody.args;
int flavor = AUTH_NONE;
mountres3 reply;
reply.fhs_status = MNT3_OK;
reply.mountres3_u.mountinfo.fhandle.fhandle3_len = 10;
reply.mountres3_u.mountinfo.fhandle.fhandle3_val = "roothandle";
reply.mountres3_u.mountinfo.auth_flavors.auth_flavors_len = 1;
reply.mountres3_u.mountinfo.auth_flavors.auth_flavors_val = &flavor;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_mountres3, sizeof(mountres3));
return 0;
}
static int mount3_dump_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
mountlist reply;
reply = (struct mountbody*)malloc(sizeof(struct mountbody));
reply->ml_hostname = "10.0.2.15";
reply->ml_directory = "/test";
reply->ml_next = NULL;
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_mountlist, sizeof(mountlist));
free(reply);
return 0;
}
static int mount3_umnt_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
dirpath *arg = call->body.cbody.args;
// do nothing
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
return 0;
}
static int mount3_umntall_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
// do nothing
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
return 0;
}
static int mount3_export_proc(struct rpc_context *rpc, struct rpc_msg *call)
{
exports reply;
reply = (struct exportnode*)malloc(sizeof(struct exportnode) + sizeof(struct groupnode));
reply->ex_dir = "/test";
reply->ex_groups = (struct groupnode*)(reply+1);
reply->ex_groups->gr_name = "10.0.2.15";
reply->ex_groups->gr_next = NULL;
reply->ex_next = NULL;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_exports, sizeof(exports));
free(reply);
return 0;
}
struct service_proc nfs3_pt[22] = {
{NFS3_NULL, nfs3_null_proc, (zdrproc_t)zdr_void, 0},
{NFS3_GETATTR, nfs3_getattr_proc, (zdrproc_t)zdr_GETATTR3args, sizeof(GETATTR3args)},
{NFS3_SETATTR, nfs3_setattr_proc, (zdrproc_t)zdr_SETATTR3args, sizeof(SETATTR3args)},
{NFS3_LOOKUP, nfs3_lookup_proc, (zdrproc_t)zdr_LOOKUP3args, sizeof(LOOKUP3args)},
{NFS3_ACCESS, nfs3_access_proc, (zdrproc_t)zdr_ACCESS3args, sizeof(ACCESS3args)},
{NFS3_READLINK, nfs3_readlink_proc, (zdrproc_t)zdr_READLINK3args, sizeof(READLINK3args)},
{NFS3_READ, nfs3_read_proc, (zdrproc_t)zdr_READ3args, sizeof(READ3args)},
{NFS3_WRITE, nfs3_write_proc, (zdrproc_t)zdr_WRITE3args, sizeof(WRITE3args)},
{NFS3_CREATE, nfs3_create_proc, (zdrproc_t)zdr_CREATE3args, sizeof(CREATE3args)},
{NFS3_MKDIR, nfs3_mkdir_proc, (zdrproc_t)zdr_MKDIR3args, sizeof(MKDIR3args)},
{NFS3_SYMLINK, nfs3_symlink_proc, (zdrproc_t)zdr_SYMLINK3args, sizeof(SYMLINK3args)},
{NFS3_MKNOD, nfs3_mknod_proc, (zdrproc_t)zdr_MKNOD3args, sizeof(MKNOD3args)},
{NFS3_REMOVE, nfs3_remove_proc, (zdrproc_t)zdr_REMOVE3args, sizeof(REMOVE3args)},
{NFS3_RMDIR, nfs3_rmdir_proc, (zdrproc_t)zdr_RMDIR3args, sizeof(RMDIR3args)},
{NFS3_RENAME, nfs3_rename_proc, (zdrproc_t)zdr_RENAME3args, sizeof(RENAME3args)},
{NFS3_LINK, nfs3_link_proc, (zdrproc_t)zdr_LINK3args, sizeof(LINK3args)},
{NFS3_READDIR, nfs3_readdir_proc, (zdrproc_t)zdr_READDIR3args, sizeof(READDIR3args)},
{NFS3_READDIRPLUS, nfs3_readdirplus_proc, (zdrproc_t)zdr_READDIRPLUS3args, sizeof(READDIRPLUS3args)},
{NFS3_FSSTAT, nfs3_fsstat_proc, (zdrproc_t)zdr_FSSTAT3args, sizeof(FSSTAT3args)},
{NFS3_FSINFO, nfs3_fsinfo_proc, (zdrproc_t)zdr_FSINFO3args, sizeof(FSINFO3args)},
{NFS3_PATHCONF, nfs3_pathconf_proc, (zdrproc_t)zdr_PATHCONF3args, sizeof(PATHCONF3args)},
{NFS3_COMMIT, nfs3_commit_proc, (zdrproc_t)zdr_COMMIT3args, sizeof(COMMIT3args)},
};
struct service_proc nfs3_mount_pt[6] = {
{MOUNT3_NULL, nfs3_null_proc, (zdrproc_t)zdr_void, 0},
{MOUNT3_MNT, mount3_mnt_proc, (zdrproc_t)zdr_dirpath, sizeof(dirpath)},
{MOUNT3_DUMP, mount3_dump_proc, (zdrproc_t)zdr_void, 0},
{MOUNT3_UMNT, mount3_umnt_proc, (zdrproc_t)zdr_dirpath, sizeof(dirpath)},
{MOUNT3_UMNTALL, mount3_umntall_proc, (zdrproc_t)zdr_void, 0},
{MOUNT3_EXPORT, mount3_export_proc, (zdrproc_t)zdr_void, 0},
};

11
nfs-service.h

@ -0,0 +1,11 @@
#pragma once
#include <sys/time.h>
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-raw-mount.h"
#include "libnfs-raw-nfs.h"
#include "libnfs-raw-portmap.h"
extern struct service_proc nfs3_pt[22];
extern struct service_proc nfs3_mount_pt[6];
Loading…
Cancel
Save