net: Remove the deprecated -tftp, -bootp, -redir and -smb options

These options likely do not work as expected as soon as the user
tries to use more than one network interface at once. The parameters
have been marked as deprecated since QEMU v2.6, so users had plenty
of time to move their scripts to the new syntax. Time to remove the
old parameters now.

Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

include/net/net.h

@@ -201,9 +201,6 @@ extern NICInfo nd_table[MAX_NICS];
 extern const char *host_net_devices[];
 
 /* from net.c */
-extern const char *legacy_tftp_prefix;
-extern const char *legacy_bootp_filename;
-
 int net_client_parse(QemuOptsList *opts_list, const char *str);
 int net_init_clients(Error **errp);
 void net_check_clients(void);

include/net/slirp.h

@@ -30,10 +30,6 @@
 void hmp_hostfwd_add(Monitor *mon, const QDict *qdict);
 void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict);
 
-int net_slirp_redir(const char *redir_str);
-
-int net_slirp_smb(const char *exported_dir);
-
 void hmp_info_usernet(Monitor *mon, const QDict *qdict);
 
 #endif

net/slirp.c

@@ -67,13 +67,11 @@ static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
 /* slirp network adapter */
 
 #define SLIRP_CFG_HOSTFWD 1
-#define SLIRP_CFG_LEGACY  2
 
 struct slirp_config_str {
     struct slirp_config_str *next;
     int flags;
     char str[1024];
-    int legacy_format;
 };
 
 typedef struct SlirpState {
@@ -87,19 +85,13 @@ typedef struct SlirpState {
 } SlirpState;
 
 static struct slirp_config_str *slirp_configs;
-const char *legacy_tftp_prefix;
-const char *legacy_bootp_filename;
 static QTAILQ_HEAD(slirp_stacks, SlirpState) slirp_stacks =
     QTAILQ_HEAD_INITIALIZER(slirp_stacks);
 
-static int slirp_hostfwd(SlirpState *s, const char *redir_str,
-                         int legacy_format, Error **errp);
-static int slirp_guestfwd(SlirpState *s, const char *config_str,
-                          int legacy_format, Error **errp);
+static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp);
+static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp);
 
 #ifndef _WIN32
-static const char *legacy_smb_export;
-
 static int slirp_smb(SlirpState *s, const char *exported_dir,
                      struct in_addr vserver_addr, Error **errp);
 static void slirp_smb_cleanup(SlirpState *s);
@@ -196,13 +188,6 @@ static int net_slirp_init(NetClientState *peer, const char *model,
         return -1;
     }
 
-    if (!tftp_export) {
-        tftp_export = legacy_tftp_prefix;
-    }
-    if (!bootfile) {
-        bootfile = legacy_bootp_filename;
-    }
-
     if (vnetwork) {
         if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) {
             if (!inet_aton(vnetwork, &net)) {
@@ -382,21 +367,16 @@ static int net_slirp_init(NetClientState *peer, const char *model,
 
     for (config = slirp_configs; config; config = config->next) {
         if (config->flags & SLIRP_CFG_HOSTFWD) {
-            if (slirp_hostfwd(s, config->str,
-                              config->flags & SLIRP_CFG_LEGACY, errp) < 0) {
+            if (slirp_hostfwd(s, config->str, errp) < 0) {
                 goto error;
             }
         } else {
-            if (slirp_guestfwd(s, config->str,
-                               config->flags & SLIRP_CFG_LEGACY, errp) < 0) {
+            if (slirp_guestfwd(s, config->str, errp) < 0) {
                 goto error;
             }
         }
     }
 #ifndef _WIN32
-    if (!smb_export) {
-        smb_export = legacy_smb_export;
-    }
     if (smb_export) {
         if (slirp_smb(s, smb_export, smbsrv, errp) < 0) {
             goto error;
@@ -506,8 +486,7 @@ void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict)
     monitor_printf(mon, "invalid format\n");
 }
 
-static int slirp_hostfwd(SlirpState *s, const char *redir_str,
-                         int legacy_format, Error **errp)
+static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp)
 {
     struct in_addr host_addr = { .s_addr = INADDR_ANY };
     struct in_addr guest_addr = { .s_addr = 0 };
@@ -532,18 +511,16 @@ static int slirp_hostfwd(SlirpState *s, const char *redir_str,
         goto fail_syntax;
     }
 
-    if (!legacy_format) {
-        if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
-            fail_reason = "Missing : separator";
-            goto fail_syntax;
-        }
-        if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
-            fail_reason = "Bad host address";
-            goto fail_syntax;
-        }
+    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+        fail_reason = "Missing : separator";
+        goto fail_syntax;
+    }
+    if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
+        fail_reason = "Bad host address";
+        goto fail_syntax;
     }
 
-    if (get_str_sep(buf, sizeof(buf), &p, legacy_format ? ':' : '-') < 0) {
+    if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
         fail_reason = "Bad host port separator";
         goto fail_syntax;
     }
@@ -602,35 +579,13 @@ void hmp_hostfwd_add(Monitor *mon, const QDict *qdict)
     }
     if (s) {
         Error *err = NULL;
-        if (slirp_hostfwd(s, redir_str, 0, &err) < 0) {
+        if (slirp_hostfwd(s, redir_str, &err) < 0) {
             error_report_err(err);
         }
     }
 
 }
 
-int net_slirp_redir(const char *redir_str)
-{
-    struct slirp_config_str *config;
-    Error *err = NULL;
-    int res;
-
-    if (QTAILQ_EMPTY(&slirp_stacks)) {
-        config = g_malloc(sizeof(*config));
-        pstrcpy(config->str, sizeof(config->str), redir_str);
-        config->flags = SLIRP_CFG_HOSTFWD | SLIRP_CFG_LEGACY;
-        config->next = slirp_configs;
-        slirp_configs = config;
-        return 0;
-    }
-
-    res = slirp_hostfwd(QTAILQ_FIRST(&slirp_stacks), redir_str, 1, &err);
-    if (res < 0) {
-        error_report_err(err);
-    }
-    return res;
-}
-
 #ifndef _WIN32
 
 /* automatic user mode samba server configuration */
@@ -746,28 +701,6 @@ static int slirp_smb(SlirpState* s, const char *exported_dir,
     return 0;
 }
 
-/* automatic user mode samba server configuration (legacy interface) */
-int net_slirp_smb(const char *exported_dir)
-{
-    struct in_addr vserver_addr = { .s_addr = 0 };
-
-    if (legacy_smb_export) {
-        fprintf(stderr, "-smb given twice\n");
-        return -1;
-    }
-    legacy_smb_export = exported_dir;
-    if (!QTAILQ_EMPTY(&slirp_stacks)) {
-        Error *err = NULL;
-        int res = slirp_smb(QTAILQ_FIRST(&slirp_stacks), exported_dir,
-                            vserver_addr, &err);
-        if (res < 0) {
-            error_report_err(err);
-        }
-        return res;
-    }
-    return 0;
-}
-
 #endif /* !defined(_WIN32) */
 
 struct GuestFwd {
@@ -789,8 +722,7 @@ static void guestfwd_read(void *opaque, const uint8_t *buf, int size)
     slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size);
 }
 
-static int slirp_guestfwd(SlirpState *s, const char *config_str,
-                          int legacy_format, Error **errp)
+static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp)
 {
     struct in_addr server = { .s_addr = 0 };
     struct GuestFwd *fwd;
@@ -800,26 +732,20 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str,
     int port;
 
     p = config_str;
-    if (legacy_format) {
-        if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
-            goto fail_syntax;
-        }
-    } else {
-        if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
-            goto fail_syntax;
-        }
-        if (strcmp(buf, "tcp") && buf[0] != '\0') {
-            goto fail_syntax;
-        }
-        if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
-            goto fail_syntax;
-        }
-        if (buf[0] != '\0' && !inet_aton(buf, &server)) {
-            goto fail_syntax;
-        }
-        if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
-            goto fail_syntax;
-        }
+    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+        goto fail_syntax;
+    }
+    if (strcmp(buf, "tcp") && buf[0] != '\0') {
+        goto fail_syntax;
+    }
+    if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+        goto fail_syntax;
+    }
+    if (buf[0] != '\0' && !inet_aton(buf, &server)) {
+        goto fail_syntax;
+    }
+    if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
+        goto fail_syntax;
     }
     port = strtol(buf, &end, 10);
     if (*end != '\0' || port < 1 || port > 65535) {

os-posix.c

@@ -168,14 +168,6 @@ static bool os_parse_runas_uid_gid(const char *optarg)
 int os_parse_cmd_args(int index, const char *optarg)
 {
     switch (index) {
-#ifdef CONFIG_SLIRP
-    case QEMU_OPTION_smb:
-        error_report("The -smb option is deprecated. "
-                     "Please use '-netdev user,smb=...' instead.");
-        if (net_slirp_smb(optarg) < 0)
-            exit(1);
-        break;
-#endif
     case QEMU_OPTION_runas:
         user_pwd = getpwnam(optarg);
         if (user_pwd) {

qemu-deprecated.texi

@@ -40,40 +40,6 @@ which is the default.
 The ``-no-kvm'' argument is now a synonym for setting
 ``-machine accel=tcg''.
 
-@subsection -tftp (since 2.6.0)
-
-The ``-tftp /some/dir'' argument is replaced by either
-``-netdev user,id=x,tftp=/some/dir '' (for pluggable NICs, accompanied
-with ``-device ...,netdev=x''), or ``-nic user,tftp=/some/dir''
-(for embedded NICs). The new syntax allows different settings to be
-provided per NIC.
-
-@subsection -bootp (since 2.6.0)
-
-The ``-bootp /some/file'' argument is replaced by either
-``-netdev user,id=x,bootp=/some/file '' (for pluggable NICs, accompanied
-with ``-device ...,netdev=x''), or ``-nic user,bootp=/some/file''
-(for embedded NICs). The new syntax allows different settings to be
-provided per NIC.
-
-@subsection -redir (since 2.6.0)
-
-The ``-redir [tcp|udp]:hostport:[guestaddr]:guestport'' argument is
-replaced by either
-``-netdev user,id=x,hostfwd=[tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport''
-(for pluggable NICs, accompanied with ``-device ...,netdev=x'') or
-``-nic user,hostfwd=[tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport''
-(for embedded NICs). The new syntax allows different settings to be
-provided per NIC.
-
-@subsection -smb (since 2.6.0)
-
-The ``-smb /some/dir'' argument is replaced by either
-``-netdev user,id=x,smb=/some/dir '' (for pluggable NICs, accompanied
-with ``-device ...,netdev=x''), or ``-nic user,smb=/some/dir''
-(for embedded NICs). The new syntax allows different settings to be
-provided per NIC.
-
 @subsection -usbdevice (since 2.10.0)
 
 The ``-usbdevice DEV'' argument is now a synonym for setting

qemu-options.hx

@@ -1813,16 +1813,6 @@ STEXI
 @table @option
 ETEXI
 
-HXCOMM Legacy slirp options (now moved to -net user):
-#ifdef CONFIG_SLIRP
-DEF("tftp", HAS_ARG, QEMU_OPTION_tftp, "", QEMU_ARCH_ALL)
-DEF("bootp", HAS_ARG, QEMU_OPTION_bootp, "", QEMU_ARCH_ALL)
-DEF("redir", HAS_ARG, QEMU_OPTION_redir, "", QEMU_ARCH_ALL)
-#ifndef _WIN32
-DEF("smb", HAS_ARG, QEMU_OPTION_smb, "", QEMU_ARCH_ALL)
-#endif
-#endif
-
 DEF("netdev", HAS_ARG, QEMU_OPTION_netdev,
 #ifdef CONFIG_SLIRP
     "-netdev user,id=str[,ipv4[=on|off]][,net=addr[/mask]][,host=addr]\n"
@@ -2150,11 +2140,6 @@ qemu-system-i386 -nic  'user,id=n1,guestfwd=tcp:10.0.2.100:1234-cmd:netcat 10.10
 
 @end table
 
-Note: Legacy stand-alone options -tftp, -bootp, -smb and -redir are still
-processed and applied to -net user. Mixing them with the new configuration
-syntax gives undefined results. Their use for new applications is discouraged
-as they will be removed from future versions.
-
 @item -netdev tap,id=@var{id}[,fd=@var{h}][,ifname=@var{name}][,script=@var{file}][,downscript=@var{dfile}][,br=@var{bridge}][,helper=@var{helper}]
 Configure a host TAP network backend with ID @var{id}.
 

vl.c

@@ -3167,24 +3167,6 @@ int main(int argc, char **argv, char **envp)
                     exit(1);
                 }
                 break;
-#endif
-#ifdef CONFIG_SLIRP
-            case QEMU_OPTION_tftp:
-                error_report("The -tftp option is deprecated. "
-                             "Please use '-netdev user,tftp=...' instead.");
-                legacy_tftp_prefix = optarg;
-                break;
-            case QEMU_OPTION_bootp:
-                error_report("The -bootp option is deprecated. "
-                             "Please use '-netdev user,bootfile=...' instead.");
-                legacy_bootp_filename = optarg;
-                break;
-            case QEMU_OPTION_redir:
-                error_report("The -redir option is deprecated. "
-                             "Please use '-netdev user,hostfwd=...' instead.");
-                if (net_slirp_redir(optarg) < 0)
-                    exit(1);
-                break;
 #endif
             case QEMU_OPTION_bt:
                 add_device_config(DEV_BT, optarg);