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718e3744 | 1 | /* |
2 | * ipforward value get function for solaris. | |
3 | * Copyright (C) 1997 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
269c67c5 | 24 | #include "log.h" |
718e3744 | 25 | |
269c67c5 | 26 | /* |
27 | ** Solaris should define IP_DEV_NAME in <inet/ip.h>, but we'll save | |
28 | ** configure.in changes for another day. We can use the same device | |
29 | ** for both IPv4 and IPv6. | |
30 | */ | |
31 | /* #include <inet/ip.h> */ | |
32 | #ifndef IP_DEV_NAME | |
33 | #define IP_DEV_NAME "/dev/ip" | |
34 | #endif | |
35 | /* | |
36 | ** This is a limited ndd style function that operates one integer | |
37 | ** value only. Errors return -1. ND_SET commands return 0 on | |
38 | ** success. ND_GET commands return the value on success (which could | |
39 | ** be -1 and be confused for an error). The parameter is the string | |
40 | ** name of the parameter being referenced. | |
41 | */ | |
718e3744 | 42 | |
269c67c5 | 43 | static int |
44 | solaris_nd(const int cmd, const char* parameter, const int value) | |
718e3744 | 45 | { |
269c67c5 | 46 | #define ND_BUFFER_SIZE 1024 |
47 | int fd; | |
48 | char nd_buf[ND_BUFFER_SIZE]; | |
49 | struct strioctl strioctl; | |
50 | const char* device = IP_DEV_NAME; | |
51 | int retval; | |
52 | memset(nd_buf, '\0', ND_BUFFER_SIZE); | |
53 | /* | |
54 | ** ND_SET takes a NULL delimited list of strings further terminated | |
55 | ** buy a NULL. ND_GET returns a list in a similar layout, although | |
56 | ** here we only use the first result. | |
57 | */ | |
58 | if (cmd == ND_SET) { | |
59 | snprintf(nd_buf, ND_BUFFER_SIZE, "%s%c%d%c", parameter, '\0', value,'\0'); | |
60 | } else if (cmd == ND_GET) { | |
61 | snprintf(nd_buf, ND_BUFFER_SIZE, "%s", parameter); | |
62 | } else { | |
63 | zlog_err("internal error - inappropriate command given to solaris_nd()%s:%d", __FILE__, __LINE__); | |
718e3744 | 64 | return -1; |
65 | } | |
269c67c5 | 66 | strioctl.ic_cmd = cmd; |
67 | strioctl.ic_timout = 0; | |
68 | strioctl.ic_len = ND_BUFFER_SIZE; | |
69 | strioctl.ic_dp = nd_buf; | |
70 | if ((fd = open (device, O_RDWR)) < 0) { | |
71 | zlog_warn("failed to open device %s - %s", device, strerror(errno)); | |
72 | return -1; | |
73 | } | |
74 | if (ioctl (fd, I_STR, &strioctl) < 0) { | |
75 | close (fd); | |
76 | zlog_warn("ioctl I_STR failed on device %s - %s", device,strerror(errno)); | |
718e3744 | 77 | return -1; |
78 | } | |
269c67c5 | 79 | close(fd); |
80 | if (cmd == ND_GET) { | |
81 | errno = 0; | |
82 | retval = atoi(nd_buf); | |
83 | if (errno) { | |
84 | zlog_warn("failed to convert returned value to integer - %s",strerror(errno)); | |
85 | retval = -1; | |
86 | } | |
87 | } else { | |
88 | retval = 0; | |
89 | } | |
90 | return retval; | |
91 | } | |
718e3744 | 92 | |
269c67c5 | 93 | static int |
94 | solaris_nd_set(const char* parameter, const int value) { | |
95 | return solaris_nd(ND_SET, parameter, value); | |
96 | } | |
97 | static int | |
98 | solaris_nd_get(const char* parameter) { | |
99 | return solaris_nd(ND_GET, parameter, 0); | |
100 | } | |
101 | int | |
102 | ipforward() | |
103 | { | |
104 | return solaris_nd_get("ip_forwarding"); | |
718e3744 | 105 | } |
106 | ||
107 | int | |
108 | ipforward_on () | |
109 | { | |
269c67c5 | 110 | (void) solaris_nd_set("ip_forwarding", 1); |
111 | return ipforward(); | |
718e3744 | 112 | } |
113 | ||
114 | int | |
115 | ipforward_off () | |
116 | { | |
269c67c5 | 117 | (void) solaris_nd_set("ip_forwarding", 0); |
118 | return ipforward(); | |
119 | } | |
120 | #ifdef HAVE_IPV6 | |
121 | int ipforward_ipv6() | |
122 | { | |
123 | return solaris_nd_get("ip6_fowarding"); | |
124 | } | |
125 | int | |
126 | ipforward_ipv6_on () | |
127 | { | |
128 | (void) solaris_nd_set("ip6_forwarding", 1); | |
129 | return ipforward_ipv6(); | |
130 | } | |
131 | int | |
132 | ipforward_ipv6_off () | |
133 | { | |
134 | (void) solaris_nd_set("ip6_forwarding", 0); | |
135 | return ipforward_ipv6(); | |
718e3744 | 136 | } |
269c67c5 | 137 | #endif /* HAVE_IPV6 */ |