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- add experimental IPv6 support for ftpfs (#198386)

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This commit is contained in:
Jindrich Novy 2006-09-26 08:47:33 +00:00
parent 5bcdf21fc2
commit a17632211b
2 changed files with 395 additions and 1 deletions
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388
mc-ipv6.patch Normal file
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@ -0,0 +1,388 @@
--- mc-2006-09-12-21/vfs/ftpfs.c.ipv6 2006-03-08 16:17:55.000000000 +0100
+++ mc-2006-09-12-21/vfs/ftpfs.c 2006-09-26 10:43:27.000000000 +0200
@@ -639,12 +639,13 @@ ftpfs_get_proxy_host_and_port (const cha
static int
ftpfs_open_socket (struct vfs_class *me, struct vfs_s_super *super)
{
- struct sockaddr_in server_address;
- struct hostent *hp;
- int my_socket;
+ struct addrinfo hints, *res, *restmp;
+ int my_socket = 0;
char *host;
- int port = SUP.port;
+ char *port;
+ int tmp_port;
int free_host = 0;
+ int e;
(void) me;
@@ -657,62 +658,83 @@ ftpfs_open_socket (struct vfs_class *me,
return -1;
}
+ port = malloc (sizeof (char) * 6);
+ if (port == NULL) {
+ ftpfs_errno = errno;
+ return -1;
+ }
+
/* Hosts to connect to that start with a ! should use proxy */
+ tmp_port = SUP.port;
+
if (SUP.proxy){
- ftpfs_get_proxy_host_and_port (ftpfs_proxy_host, &host, &port);
+ ftpfs_get_proxy_host_and_port (ftpfs_proxy_host, &host, &tmp_port);
free_host = 1;
}
- enable_interrupt_key(); /* clear the interrupt flag */
-
- /* Get host address */
- memset ((char *) &server_address, 0, sizeof (server_address));
- server_address.sin_family = AF_INET;
- server_address.sin_addr.s_addr = inet_addr (host);
- if (server_address.sin_addr.s_addr == INADDR_NONE) {
- hp = gethostbyname (host);
- if (hp == NULL){
- disable_interrupt_key();
- print_vfs_message (_("ftpfs: Invalid host address."));
- ftpfs_errno = EINVAL;
- if (free_host)
- g_free (host);
- return -1;
- }
- server_address.sin_family = hp->h_addrtype;
-
- /* We copy only 4 bytes, we cannot trust hp->h_length, as it comes from the DNS */
- memcpy ((char *) &server_address.sin_addr, (char *) hp->h_addr, 4);
+ if (snprintf (port, 6, "%hu", (unsigned short)tmp_port) < 0) {
+ g_free (port);
+ if (free_host)
+ g_free (host);
+ ftpfs_errno = errno;
+ return -1;
}
- server_address.sin_port = htons (port);
+ enable_interrupt_key(); /* clear the interrupt flag */
- /* Connect */
- if ((my_socket = socket (AF_INET, SOCK_STREAM, 0)) < 0) {
- disable_interrupt_key();
- ftpfs_errno = errno;
- if (free_host)
- g_free (host);
- return -1;
- }
-
- print_vfs_message (_("ftpfs: making connection to %s"), host);
- if (free_host)
+ memset (&hints, 0, sizeof (struct addrinfo));
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_ADDRCONFIG;
+
+ if ((e = getaddrinfo (host, port, &hints, &res)) != 0) {
+ disable_interrupt_key();
+ print_vfs_message (_("ftpfs: %s"), gai_strerror (e));
+ if (free_host)
g_free (host);
-
- if (connect (my_socket, (struct sockaddr *) &server_address,
- sizeof (server_address)) < 0){
- ftpfs_errno = errno;
- if (errno == EINTR && got_interrupt ())
+ g_free (port);
+ ftpfs_errno = EINVAL;
+ return -1;
+ }
+ g_free (port);
+
+ for (restmp = res; res != NULL; res = res->ai_next) {
+ my_socket = socket (res->ai_family, res->ai_socktype, res->ai_protocol);
+ if (my_socket < 0) {
+ if (res->ai_next == NULL) {
+ disable_interrupt_key();
+ print_vfs_message (_("ftpfs: %s"), unix_error_string (errno));
+ if (free_host)
+ g_free (host);
+ freeaddrinfo (restmp);
+ ftpfs_errno = errno;
+ return -1;
+ } else
+ continue;
+ } else {
+ print_vfs_message (_("ftpfs: making connection to %s"), host);
+ if (free_host)
+ g_free (host);
+
+ if (connect (my_socket, res->ai_addr, res->ai_addrlen) < 0) {
+ ftpfs_errno = errno;
+ close (my_socket);
+ if (errno == EINTR && got_interrupt ()) {
print_vfs_message (_("ftpfs: connection interrupted by user"));
- else
+ } else if (res->ai_next == NULL) {
print_vfs_message (_("ftpfs: connection to server failed: %s"),
- unix_error_string(errno));
- disable_interrupt_key();
- close (my_socket);
- return -1;
+ unix_error_string (errno));
+ } else
+ continue;
+ freeaddrinfo (restmp);
+ disable_interrupt_key ();
+ return -1;
+ } else
+ break;
+ }
}
- disable_interrupt_key();
+
+ freeaddrinfo (restmp);
+ disable_interrupt_key ();
return my_socket;
}
@@ -861,93 +883,179 @@ ftpfs_get_current_directory (struct vfs_
/* Setup Passive ftp connection, we use it for source routed connections */
static int
-ftpfs_setup_passive (struct vfs_class *me, struct vfs_s_super *super, int my_socket, struct sockaddr_in *sa)
+ftpfs_setup_passive (struct vfs_class *me, struct vfs_s_super *super, int my_socket, struct sockaddr_storage *sa, socklen_t *salen)
{
+ char *c;
+
+ if (ftpfs_command (me, super, WAIT_REPLY | WANT_STRING, "EPSV") == COMPLETE) {
+ int port;
+ /* (|||<port>|) */
+ c = strchr (reply_str, '|');
+ if (c == NULL)
+ return 0;
+ if(strlen(c) > 3)
+ c+=3;
+ else
+ return 0;
+
+ port = atoi (c);
+ if (port < 0 || port > 65535)
+ return 0;
+ port = htons (port);
+
+ switch (sa->ss_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)sa)->sin_port = port;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)sa)->sin6_port = port;
+ break;
+ default:
+ print_vfs_message (_("ftpfs: invalid address family"));
+ ERRNOR (EINVAL, -1);
+ }
+ } else if (sa->ss_family == AF_INET) {
int xa, xb, xc, xd, xe, xf;
char n [6];
- char *c;
if (ftpfs_command (me, super, WAIT_REPLY | WANT_STRING, "PASV") != COMPLETE)
- return 0;
-
+ return 0;
+
/* Parse remote parameters */
for (c = reply_str + 4; (*c) && (!isdigit ((unsigned char) *c)); c++)
- ;
+ ;
if (!*c)
- return 0;
+ return 0;
if (!isdigit ((unsigned char) *c))
- return 0;
+ return 0;
if (sscanf (c, "%d,%d,%d,%d,%d,%d", &xa, &xb, &xc, &xd, &xe, &xf) != 6)
- return 0;
+ return 0;
n [0] = (unsigned char) xa;
n [1] = (unsigned char) xb;
n [2] = (unsigned char) xc;
n [3] = (unsigned char) xd;
n [4] = (unsigned char) xe;
n [5] = (unsigned char) xf;
+
+ memcpy (&(((struct sockaddr_in *)sa)->sin_addr.s_addr), (void *)n, 4);
+ memcpy (&(((struct sockaddr_in *)sa)->sin_port), (void *)&n[4], 2);
+ } else
+ return 0;
- memcpy (&(sa->sin_addr.s_addr), (void *)n, 4);
- memcpy (&(sa->sin_port), (void *)&n[4], 2);
- if (connect (my_socket, (struct sockaddr *) sa, sizeof (struct sockaddr_in)) < 0)
- return 0;
- return 1;
+ if (connect (my_socket, (struct sockaddr *) sa, *salen ) < 0)
+ return 0;
+
+ return 1;
}
static int
ftpfs_initconn (struct vfs_class *me, struct vfs_s_super *super)
{
- struct sockaddr_in data_addr;
- int data;
- socklen_t len = sizeof(data_addr);
- struct protoent *pe;
+ struct sockaddr_storage data_addr;
+ socklen_t data_addrlen;
+ int data_sock;
- pe = getprotobyname ("tcp");
- if (pe == NULL)
- ERRNOR (EIO, -1);
again:
- if (getsockname (SUP.sock, (struct sockaddr *) &data_addr, &len) == -1)
- ERRNOR (EIO, -1);
- data_addr.sin_port = 0;
-
- data = socket (AF_INET, SOCK_STREAM, pe->p_proto);
- if (data < 0)
- ERRNOR (EIO, -1);
+ memset (&data_addr, 0, sizeof (struct sockaddr_storage));
+ data_addrlen = sizeof (struct sockaddr_storage);
- if (SUP.use_passive_connection) {
- if (ftpfs_setup_passive (me, super, data, &data_addr))
- return data;
-
- SUP.use_passive_connection = 0;
- print_vfs_message (_("ftpfs: could not setup passive mode"));
+ if (getsockname (SUP.sock, (struct sockaddr *) &data_addr, &data_addrlen) == -1)
+ return -1;
+
+ switch (data_addr.ss_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)&data_addr)->sin_port = 0;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)&data_addr)->sin6_port = 0;
+ break;
+ default:
+ print_vfs_message (_("ftpfs: invalid address family"));
+ ERRNOR(EINVAL, -1);
+ }
- /* data or data_addr may be damaged by ftpfs_setup_passive */
- close (data);
- goto again;
+ data_sock = socket (data_addr.ss_family, SOCK_STREAM, IPPROTO_TCP);
+ if (data_sock < 0) {
+ if (SUP.use_passive_connection) {
+ print_vfs_message (_("ftpfs: could not setup passive mode: %s"), unix_error_string (errno));
+ SUP.use_passive_connection = 0;
+ goto again;
}
+ print_vfs_message (_("ftpfs: could not create socket: %s"), unix_error_string (errno));
+ return -1;
+ }
+ if (SUP.use_passive_connection) {
+ if (ftpfs_setup_passive (me, super, data_sock, &data_addr, &data_addrlen))
+ return data_sock;
+
+ SUP.use_passive_connection = 0;
+ print_vfs_message (_("ftpfs: could not setup passive mode"));
+
+ close (data_sock);
+ goto again;
+ }
+
/* If passive setup fails, fallback to active connections */
/* Active FTP connection */
- if ((bind (data, (struct sockaddr *)&data_addr, len) == 0) &&
- (getsockname (data, (struct sockaddr *) &data_addr, &len) == 0) &&
- (listen (data, 1) == 0))
+ if ((bind (data_sock, (struct sockaddr *)&data_addr, data_addrlen) == 0) &&
+ (getsockname (data_sock, (struct sockaddr *)&data_addr, &data_addrlen) == 0) &&
+ (listen (data_sock, 1) == 0))
{
- unsigned char *a = (unsigned char *)&data_addr.sin_addr;
- unsigned char *p = (unsigned char *)&data_addr.sin_port;
+ unsigned short int port;
+ char *addr;
+ unsigned int af;
+
+ switch (data_addr.ss_family) {
+ case AF_INET:
+ af = FTP_INET;
+ port = ((struct sockaddr_in *)&data_addr)->sin_port;
+ break;
+ case AF_INET6:
+ af = FTP_INET6;
+ port = ((struct sockaddr_in6 *)&data_addr)->sin6_port;
+ break;
+ default:
+ print_vfs_message (_("ftpfs: invalid address family"));
+ ERRNOR (EINVAL, -1);
+ }
+ port = ntohs (port);
+
+ addr = malloc (NI_MAXHOST);
+ if (addr == NULL)
+ ERRNOR (ENOMEM, -1);
+
+ if (getnameinfo ((struct sockaddr *)&data_addr, data_addrlen, addr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST) != 0) {
+ g_free (addr);
+ ERRNOR (EIO, -1);
+ }
+
+ if (ftpfs_command (me, super, WAIT_REPLY, "EPRT |%u|%s|%hu|", af, addr, port) == COMPLETE) {
+ g_free (addr);
+ return data_sock;
+ }
+ g_free (addr);
+
+ if (FTP_INET == af) {
+ unsigned char *a = (unsigned char *)&((struct sockaddr_in *)&data_addr)->sin_addr;
+ unsigned char *p = (unsigned char *)&port;
- if (ftpfs_command (me, super, WAIT_REPLY, "PORT %d,%d,%d,%d,%d,%d", a[0], a[1],
- a[2], a[3], p[0], p[1]) == COMPLETE)
- return data;
+ if (ftpfs_command (me, super, WAIT_REPLY, "PORT %u,%u,%u,%u,%u,%u", a[0], a[1], a[2], a[3],
+ p[0], p[1]) == COMPLETE)
+ return data_sock;
+ }
}
- close (data);
- ftpfs_errno = EIO;
- return -1;
+
+ close (data_sock);
+ ftpfs_errno = EIO;
+ return -1;
}
static int
ftpfs_open_data_connection (struct vfs_class *me, struct vfs_s_super *super, const char *cmd,
const char *remote, int isbinary, int reget)
{
- struct sockaddr_in from;
+ struct sockaddr_storage from;
int s, j, data;
socklen_t fromlen = sizeof(from);
--- mc-2006-09-12-21/vfs/ftpfs.h.ipv6 2005-05-29 14:10:08.000000000 +0200
+++ mc-2006-09-12-21/vfs/ftpfs.h 2006-09-26 10:42:36.000000000 +0200
@@ -15,6 +15,9 @@ extern int ftpfs_first_cd_then_ls;
void ftpfs_init_passwd (void);
void init_ftpfs (void);
+#define FTP_INET 1
+#define FTP_INET6 2
+
#define OPT_FLUSH 1
#define OPT_IGNORE_ERROR 2

8
mc.spec
View File

@ -3,7 +3,7 @@
Summary: User-friendly text console file manager and visual shell
Name: mc
Version: 4.6.1a
Release: 28%{?dist}
Release: 29%{?dist}
Epoch: 1
License: GPL
Group: System Environment/Shells
@ -27,6 +27,7 @@ Patch11: mc-etcmc.patch
Patch12: mc-exit.patch
Patch13: mc-fishfix.patch
Patch14: mc-utf8-8bit-hex.patch
Patch15: mc-ipv6.patch
%description
Midnight Commander is a visual shell much like a file manager, only
@ -52,6 +53,7 @@ specific files.
%patch12 -p1 -b .exit
%patch13 -p1 -b .fishfix
%patch14 -p1 -b .8bit-hex
%patch15 -p1 -b .ipv6
# convert files in /lib to UTF-8
pushd lib
@ -196,6 +198,10 @@ rm -rf $RPM_BUILD_ROOT
%dir %{_sysconfdir}/mc
%changelog
* Tue Sep 26 2006 Jindrich Novy <jnovy@redhat.com> 4.6.1a-29
- add experimental IPv6 support for ftpfs (#198386), thanks to
Dan Kopecek for the patch
* Wed Sep 13 2006 Jindrich Novy <jnovy@redhat.com> 4.6.1a-28.fc6
- update to new CVS snapshot (09-12-21)
- drop .assembly, .spec patches -> applied upstream