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Change -tftp option to take a root directory, by Anthony Liguori.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2441 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-02-20 00:12:07 +00:00
parent 1f697db9c3
commit 0db1137dbf
3 changed files with 15 additions and 10 deletions
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11
qemu-doc.texi
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@ -444,13 +444,12 @@ Indicate that no network devices should be configured. It is used to
override the default configuration (@option{-net nic -net user}) which
is activated if no @option{-net} options are provided.
@item -tftp prefix
@item -tftp dir
When using the user mode network stack, activate a built-in TFTP
server. All filenames beginning with @var{prefix} can be downloaded
from the host to the guest using a TFTP client. The TFTP client on the
guest must be configured in binary mode (use the command @code{bin} of
the Unix TFTP client). The host IP address on the guest is as usual
10.0.2.2.
server. The files in @var{dir} will be exposed as the root of a TFTP server.
The TFTP client on the guest must be configured in binary mode (use the command
@code{bin} of the Unix TFTP client). The host IP address on the guest is as
usual 10.0.2.2.
@item -bootp file
When using the user mode network stack, broadcast @var{file} as the BOOTP

12
slirp/tftp.c
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@ -102,8 +102,15 @@ static int tftp_read_data(struct tftp_session *spt, u_int16_t block_nr,
{
int fd;
int bytes_read = 0;
char buffer[1024];
int n;
fd = open(spt->filename, O_RDONLY | O_BINARY);
n = snprintf(buffer, sizeof(buffer), "%s/%s",
tftp_prefix, spt->filename);
if (n >= sizeof(buffer))
return -1;
fd = open(buffer, O_RDONLY | O_BINARY);
if (fd < 0) {
return -1;
@ -325,8 +332,7 @@ static void tftp_handle_rrq(struct tftp_t *tp, int pktlen)
/* only allow exported prefixes */
if (!tftp_prefix
|| (strncmp(spt->filename, tftp_prefix, strlen(tftp_prefix)) != 0)) {
if (!tftp_prefix) {
tftp_send_error(spt, 2, "Access violation", tp);
return;
}

2
vl.c
View File

@ -6402,7 +6402,7 @@ void help(void)
" is provided, the default is '-net nic -net user'\n"
"\n"
#ifdef CONFIG_SLIRP
"-tftp prefix allow tftp access to files starting with prefix [-net user]\n"
"-tftp dir allow tftp access to files in dir [-net user]\n"
"-bootp file advertise file in BOOTP replies\n"
#ifndef _WIN32
"-smb dir allow SMB access to files in 'dir' [-net user]\n"