vitalif
/
libnfs-server-example
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add 1 file

master
Vitaliy Filippov 2022-01-02 11:24:19 +03:00
parent 848e497970
commit bae473c417
1 changed files with 81 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
nfs-service.c
View File

@ -2,7 +2,7 @@
#include <string.h> #include <string.h>
#include "nfs-service.h" #include "nfs-service.h"
static void fill_example_fsattr(struct fattr3 *attr) static void fill_example_rootdir_fsattr(struct fattr3 *attr)
{ {
struct timespec now; struct timespec now;
clock_gettime(CLOCK_REALTIME, &now); clock_gettime(CLOCK_REALTIME, &now);
@ -22,6 +22,26 @@ static void fill_example_fsattr(struct fattr3 *attr)
attr->ctime = attr->atime; attr->ctime = attr->atime;
} }
static void fill_example_testfile_fsattr(struct fattr3 *attr)
{
struct timespec now;
clock_gettime(CLOCK_REALTIME, &now);
attr->type = NF3REG;
attr->mode = 0644;
attr->nlink = 1;
attr->uid = 0;
attr->gid = 0;
attr->size = strlen("Hello, world!")+1;
attr->used = strlen("Hello, world!")+1;
attr->rdev = (specdata3){ 0, 0 };
attr->fsid = 1;
attr->fileid = 2;
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) static int nfs3_null_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0); rpc_send_reply(rpc, call, NULL, (zdrproc_t)zdr_void, 0);
@ -41,7 +61,7 @@ static int nfs3_getattr_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
// Fill info // Fill info
reply.status = NFS3_OK; reply.status = NFS3_OK;
fill_example_fsattr(&reply.GETATTR3res_u.resok.obj_attributes); fill_example_rootdir_fsattr(&reply.GETATTR3res_u.resok.obj_attributes);
} }
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_GETATTR3res, sizeof(GETATTR3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_GETATTR3res, sizeof(GETATTR3res));
return 0; return 0;
@ -51,7 +71,8 @@ static int nfs3_setattr_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
SETATTR3args *args = call->body.cbody.args; SETATTR3args *args = call->body.cbody.args;
SETATTR3res reply; SETATTR3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SETATTR3res, sizeof(SETATTR3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SETATTR3res, sizeof(SETATTR3res));
return 0; return 0;
} }
@ -78,7 +99,8 @@ static int nfs3_readlink_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
READLINK3args *args = call->body.cbody.args; READLINK3args *args = call->body.cbody.args;
READLINK3res reply; READLINK3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READLINK3res, sizeof(READLINK3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READLINK3res, sizeof(READLINK3res));
return 0; return 0;
} }
@ -96,7 +118,8 @@ static int nfs3_write_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
WRITE3args *args = call->body.cbody.args; WRITE3args *args = call->body.cbody.args;
WRITE3res reply; WRITE3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_WRITE3res, sizeof(WRITE3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_WRITE3res, sizeof(WRITE3res));
return 0; return 0;
} }
@ -105,7 +128,8 @@ static int nfs3_create_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
CREATE3args *args = call->body.cbody.args; CREATE3args *args = call->body.cbody.args;
CREATE3res reply; CREATE3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_CREATE3res, sizeof(CREATE3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_CREATE3res, sizeof(CREATE3res));
return 0; return 0;
} }
@ -114,7 +138,8 @@ static int nfs3_mkdir_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
MKDIR3args *args = call->body.cbody.args; MKDIR3args *args = call->body.cbody.args;
MKDIR3res reply; MKDIR3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_MKDIR3res, sizeof(MKDIR3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_MKDIR3res, sizeof(MKDIR3res));
return 0; return 0;
} }
@ -123,7 +148,8 @@ static int nfs3_symlink_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
SYMLINK3args *args = call->body.cbody.args; SYMLINK3args *args = call->body.cbody.args;
SYMLINK3res reply; SYMLINK3res reply;
// Not supported yet
reply.status = NFS3ERR_NOTSUPP;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SYMLINK3res, sizeof(SYMLINK3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_SYMLINK3res, sizeof(SYMLINK3res));
return 0; return 0;
} }
@ -167,8 +193,8 @@ static int nfs3_rename_proc(struct rpc_context *rpc, struct rpc_msg *call)
static int nfs3_link_proc(struct rpc_context *rpc, struct rpc_msg *call) static int nfs3_link_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
LINK3args *args = call->body.cbody.args; LINK3args *args = call->body.cbody.args;
LINK3res reply; // We don't support hard links
LINK3res reply = { NFS3ERR_NOTSUPP };
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_LINK3res, sizeof(LINK3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_LINK3res, sizeof(LINK3res));
return 0; return 0;
} }
@ -177,7 +203,18 @@ static int nfs3_readdir_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
READDIR3args *args = call->body.cbody.args; READDIR3args *args = call->body.cbody.args;
READDIR3res reply; READDIR3res reply;
// Example: return 1 entry
struct entry3 entries[1] = { {
.fileid = 2,
.name = "testfile",
.cookie = 0,
.nextentry = NULL,
} };
reply.status = NFS3_OK;
reply.READDIR3res_u.resok.dir_attributes.attributes_follow = FALSE;
*(uint64_t*)(reply.READDIR3res_u.resok.cookieverf) = 1; // continuation cookie
reply.READDIR3res_u.resok.reply.entries = entries;
reply.READDIR3res_u.resok.reply.eof = TRUE;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIR3res, sizeof(READDIR3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIR3res, sizeof(READDIR3res));
return 0; return 0;
} }
@ -186,16 +223,44 @@ static int nfs3_readdirplus_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
READDIRPLUS3args *args = call->body.cbody.args; READDIRPLUS3args *args = call->body.cbody.args;
READDIRPLUS3res reply; READDIRPLUS3res reply;
// Example: return 1 entry (but this time with attributes)
struct entryplus3 entries[1] = { {
.fileid = 2,
.name = "testfile",
.cookie = 0,
.name_attributes = {
.attributes_follow = TRUE,
},
.name_handle = {
.handle_follows = FALSE,
},
.nextentry = NULL,
} };
fill_example_testfile_fsattr(&entries[0].name_attributes.post_op_attr_u.attributes);
reply.status = NFS3_OK;
reply.READDIRPLUS3res_u.resok.dir_attributes.attributes_follow = FALSE;
*(uint64_t*)(reply.READDIRPLUS3res_u.resok.cookieverf) = 1; // continuation cookie
reply.READDIRPLUS3res_u.resok.reply.entries = entries;
reply.READDIRPLUS3res_u.resok.reply.eof = TRUE;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIRPLUS3res, sizeof(READDIRPLUS3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_READDIRPLUS3res, sizeof(READDIRPLUS3res));
return 0; return 0;
} }
// Get file system statistics
static int nfs3_fsstat_proc(struct rpc_context *rpc, struct rpc_msg *call) static int nfs3_fsstat_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
FSSTAT3args *args = call->body.cbody.args; FSSTAT3args *args = call->body.cbody.args;
FSSTAT3res reply; FSSTAT3res reply;
reply.status = NFS3_OK;
reply.FSSTAT3res_u.resok.obj_attributes.attributes_follow = TRUE;
fill_example_rootdir_fsattr(&reply.FSSTAT3res_u.resok.obj_attributes.post_op_attr_u.attributes);
reply.FSSTAT3res_u.resok.tbytes = 4096; // total bytes
reply.FSSTAT3res_u.resok.fbytes = 4096; // free bytes
reply.FSSTAT3res_u.resok.abytes = 4096; // available bytes
reply.FSSTAT3res_u.resok.tfiles = 1 << 31; // total files
reply.FSSTAT3res_u.resok.ffiles = 1 << 31; // free files
reply.FSSTAT3res_u.resok.afiles = 1 << 31; // available files
reply.FSSTAT3res_u.resok.invarsec = 0;
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_FSSTAT3res, sizeof(FSSTAT3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_FSSTAT3res, sizeof(FSSTAT3res));
return 0; return 0;
} }
@ -214,7 +279,7 @@ static int nfs3_fsinfo_proc(struct rpc_context *rpc, struct rpc_msg *call)
// Fill info // Fill info
reply.status = NFS3_OK; reply.status = NFS3_OK;
reply.FSINFO3res_u.resok.obj_attributes.attributes_follow = TRUE; reply.FSINFO3res_u.resok.obj_attributes.attributes_follow = TRUE;
fill_example_fsattr(&reply.FSINFO3res_u.resok.obj_attributes.post_op_attr_u.attributes); fill_example_rootdir_fsattr(&reply.FSINFO3res_u.resok.obj_attributes.post_op_attr_u.attributes);
reply.FSINFO3res_u.resok.rtmax = 128*1024*1024; reply.FSINFO3res_u.resok.rtmax = 128*1024*1024;
reply.FSINFO3res_u.resok.rtpref = 128*1024*1024; reply.FSINFO3res_u.resok.rtpref = 128*1024*1024;
reply.FSINFO3res_u.resok.rtmult = 4096; reply.FSINFO3res_u.resok.rtmult = 4096;
@ -259,8 +324,8 @@ static int nfs3_pathconf_proc(struct rpc_context *rpc, struct rpc_msg *call)
static int nfs3_commit_proc(struct rpc_context *rpc, struct rpc_msg *call) static int nfs3_commit_proc(struct rpc_context *rpc, struct rpc_msg *call)
{ {
COMMIT3args *args = call->body.cbody.args; COMMIT3args *args = call->body.cbody.args;
COMMIT3res reply; COMMIT3res reply = { 0 };
// Just pretend we did fsync :-)
rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_COMMIT3res, sizeof(COMMIT3res)); rpc_send_reply(rpc, call, &reply, (zdrproc_t)zdr_COMMIT3res, sizeof(COMMIT3res));
return 0; return 0;
} }