diff options
| -rw-r--r-- | man/man8/vbackup.8 | 8 | ||||
| -rw-r--r-- | src/cmd/vbackup/nfs3srv.c | 12 | ||||
| -rw-r--r-- | src/cmd/vbackup/nfs3srv.h | 2 | ||||
| -rw-r--r-- | src/cmd/vbackup/vnfs.c | 5 |
4 files changed, 21 insertions, 6 deletions
diff --git a/man/man8/vbackup.8 b/man/man8/vbackup.8 index 68bba03f..3fc07e1f 100644 --- a/man/man8/vbackup.8 +++ b/man/man8/vbackup.8 @@ -52,7 +52,7 @@ back up Unix file systems to Venti .PP .B vnfs [ -.B -ELLRVr +.B -ELLRVir ] [ .B -a @@ -277,6 +277,12 @@ file system mentioned in the configuration. .BI -c " cachesize Set the number of blocks stored by the in-memory venti cache. .TP +.B -i +Run in ``insecure'' mode, allowing remote root users to +use uid and gid 0 and read any file. +(Normally, remote root is mapped to uid and gid \-1 +and has no special permissions.) +.TP .B -r Respond to all requests with a Sun RPC rejection. This is useful during debugging. diff --git a/src/cmd/vbackup/nfs3srv.c b/src/cmd/vbackup/nfs3srv.c index b2cdd9cf..c3fc780b 100644 --- a/src/cmd/vbackup/nfs3srv.c +++ b/src/cmd/vbackup/nfs3srv.c @@ -10,6 +10,8 @@ #include <nfs3.h> #include "nfs3srv.h" +int insecure = 0; + static SunStatus authunixunpack(SunRpc *rpc, SunAuthUnix *au) { @@ -23,10 +25,12 @@ authunixunpack(SunRpc *rpc, SunAuthUnix *au) ep = p+ai->ndata; if(sunauthunixunpack(p, ep, &p, au) < 0) return SunGarbageArgs; - if(au->uid == 0) - au->uid = -1; - if(au->gid == 0) - au->gid = -1; + if(!insecure){ + if(au->uid == 0) + au->uid = -1; + if(au->gid == 0) + au->gid = -1; + } return SunSuccess; } diff --git a/src/cmd/vbackup/nfs3srv.h b/src/cmd/vbackup/nfs3srv.h index 79d4464e..f96be985 100644 --- a/src/cmd/vbackup/nfs3srv.h +++ b/src/cmd/vbackup/nfs3srv.h @@ -9,6 +9,8 @@ Nfs3Status fsreaddir(SunAuthUnix*, Nfs3Handle*, u32int, u64int, uchar**, u32int* extern void nfs3proc(void*); extern void mount3proc(void*); +extern int insecure; + enum { MaxDataSize = 8192 diff --git a/src/cmd/vbackup/vnfs.c b/src/cmd/vbackup/vnfs.c index 90f45a04..563cb270 100644 --- a/src/cmd/vbackup/vnfs.c +++ b/src/cmd/vbackup/vnfs.c @@ -74,7 +74,7 @@ u64int unittoull(char*); void usage(void) { - fprint(2, "usage: vnfs [-LLRVr] [-a addr] [-b blocksize] [-c cachesize] configfile\n"); + fprint(2, "usage: vnfs [-LLRVir] [-a addr] [-b blocksize] [-c cachesize] configfile\n"); threadexitsall("usage"); } @@ -128,6 +128,9 @@ threadmain(int argc, char **argv) case 'c': cachesize = unittoull(EARGF(usage())); break; + case 'i': + insecure = 1; + break; case 'r': srv->alwaysreject++; break; |