Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

1 files changed, 0 insertions, 544 deletions

diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
deleted file mode 100644
index 49ea75880d..0000000000
--- a/src/shared/socket-util.c
+++ /dev/null
@@ -1,544 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <assert.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <arpa/inet.h>
-#include <stdio.h>
-#include <net/if.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stddef.h>
-#include <sys/ioctl.h>
-
-#include "macro.h"
-#include "util.h"
-#include "mkdir.h"
-#include "path-util.h"
-#include "socket-util.h"
-#include "missing.h"
-
-int socket_address_parse(SocketAddress *a, const char *s) {
-        int r;
-        char *e, *n;
-        unsigned u;
-
-        assert(a);
-        assert(s);
-
-        zero(*a);
-        a->type = SOCK_STREAM;
-
-        if (*s == '[') {
-                /* IPv6 in [x:.....:z]:p notation */
-
-                if (!socket_ipv6_is_supported()) {
-                        log_warning("Binding to IPv6 address not available since kernel does not support IPv6.");
-                        return -EAFNOSUPPORT;
-                }
-
-                if (!(e = strchr(s+1, ']')))
-                        return -EINVAL;
-
-                if (!(n = strndup(s+1, e-s-1)))
-                        return -ENOMEM;
-
-                errno = 0;
-                if (inet_pton(AF_INET6, n, &a->sockaddr.in6.sin6_addr) <= 0) {
-                        free(n);
-                        return errno != 0 ? -errno : -EINVAL;
-                }
-
-                free(n);
-
-                e++;
-                if (*e != ':')
-                        return -EINVAL;
-
-                e++;
-                if ((r = safe_atou(e, &u)) < 0)
-                        return r;
-
-                if (u <= 0 || u > 0xFFFF)
-                        return -EINVAL;
-
-                a->sockaddr.in6.sin6_family = AF_INET6;
-                a->sockaddr.in6.sin6_port = htons((uint16_t) u);
-                a->size = sizeof(struct sockaddr_in6);
-
-        } else if (*s == '/') {
-                /* AF_UNIX socket */
-
-                size_t l;
-
-                l = strlen(s);
-                if (l >= sizeof(a->sockaddr.un.sun_path))
-                        return -EINVAL;
-
-                a->sockaddr.un.sun_family = AF_UNIX;
-                memcpy(a->sockaddr.un.sun_path, s, l);
-                a->size = offsetof(struct sockaddr_un, sun_path) + l + 1;
-
-        } else if (*s == '@') {
-                /* Abstract AF_UNIX socket */
-                size_t l;
-
-                l = strlen(s+1);
-                if (l >= sizeof(a->sockaddr.un.sun_path) - 1)
-                        return -EINVAL;
-
-                a->sockaddr.un.sun_family = AF_UNIX;
-                memcpy(a->sockaddr.un.sun_path+1, s+1, l);
-                a->size = offsetof(struct sockaddr_un, sun_path) + 1 + l;
-
-        } else {
-
-                if ((e = strchr(s, ':'))) {
-
-                        if ((r = safe_atou(e+1, &u)) < 0)
-                                return r;
-
-                        if (u <= 0 || u > 0xFFFF)
-                                return -EINVAL;
-
-                        if (!(n = strndup(s, e-s)))
-                                return -ENOMEM;
-
-                        /* IPv4 in w.x.y.z:p notation? */
-                        if ((r = inet_pton(AF_INET, n, &a->sockaddr.in4.sin_addr)) < 0) {
-                                free(n);
-                                return -errno;
-                        }
-
-                        if (r > 0) {
-                                /* Gotcha, it's a traditional IPv4 address */
-                                free(n);
-
-                                a->sockaddr.in4.sin_family = AF_INET;
-                                a->sockaddr.in4.sin_port = htons((uint16_t) u);
-                                a->size = sizeof(struct sockaddr_in);
-                        } else {
-                                unsigned idx;
-
-                                if (strlen(n) > IF_NAMESIZE-1) {
-                                        free(n);
-                                        return -EINVAL;
-                                }
-
-                                /* Uh, our last resort, an interface name */
-                                idx = if_nametoindex(n);
-                                free(n);
-
-                                if (idx == 0)
-                                        return -EINVAL;
-
-                                if (!socket_ipv6_is_supported()) {
-                                        log_warning("Binding to interface is not available since kernel does not support IPv6.");
-                                        return -EAFNOSUPPORT;
-                                }
-
-                                a->sockaddr.in6.sin6_family = AF_INET6;
-                                a->sockaddr.in6.sin6_port = htons((uint16_t) u);
-                                a->sockaddr.in6.sin6_scope_id = idx;
-                                a->sockaddr.in6.sin6_addr = in6addr_any;
-                                a->size = sizeof(struct sockaddr_in6);
-                        }
-                } else {
-
-                        /* Just a port */
-                        r = safe_atou(s, &u);
-                        if (r < 0)
-                                return r;
-
-                        if (u <= 0 || u > 0xFFFF)
-                                return -EINVAL;
-
-                        if (socket_ipv6_is_supported()) {
-                                a->sockaddr.in6.sin6_family = AF_INET6;
-                                a->sockaddr.in6.sin6_port = htons((uint16_t) u);
-                                a->sockaddr.in6.sin6_addr = in6addr_any;
-                                a->size = sizeof(struct sockaddr_in6);
-                        } else {
-                                a->sockaddr.in4.sin_family = AF_INET;
-                                a->sockaddr.in4.sin_port = htons((uint16_t) u);
-                                a->sockaddr.in4.sin_addr.s_addr = INADDR_ANY;
-                                a->size = sizeof(struct sockaddr_in);
-                        }
-                }
-        }
-
-        return 0;
-}
-
-int socket_address_parse_netlink(SocketAddress *a, const char *s) {
-        int family;
-        unsigned group = 0;
-        _cleanup_free_ char *sfamily = NULL;
-        assert(a);
-        assert(s);
-
-        zero(*a);
-        a->type = SOCK_RAW;
-
-        errno = 0;
-        if (sscanf(s, "%ms %u", &sfamily, &group) < 1)
-                return errno ? -errno : -EINVAL;
-
-        family = netlink_family_from_string(sfamily);
-        if (family < 0)
-                return -EINVAL;
-
-        a->sockaddr.nl.nl_family = AF_NETLINK;
-        a->sockaddr.nl.nl_groups = group;
-
-        a->type = SOCK_RAW;
-        a->size = sizeof(struct sockaddr_nl);
-        a->protocol = family;
-
-        return 0;
-}
-
-int socket_address_verify(const SocketAddress *a) {
-        assert(a);
-
-        switch (socket_address_family(a)) {
-
-        case AF_INET:
-                if (a->size != sizeof(struct sockaddr_in))
-                        return -EINVAL;
-
-                if (a->sockaddr.in4.sin_port == 0)
-                        return -EINVAL;
-
-                if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM)
-                        return -EINVAL;
-
-                return 0;
-
-        case AF_INET6:
-                if (a->size != sizeof(struct sockaddr_in6))
-                        return -EINVAL;
-
-                if (a->sockaddr.in6.sin6_port == 0)
-                        return -EINVAL;
-
-                if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM)
-                        return -EINVAL;
-
-                return 0;
-
-        case AF_UNIX:
-                if (a->size < offsetof(struct sockaddr_un, sun_path))
-                        return -EINVAL;
-
-                if (a->size > offsetof(struct sockaddr_un, sun_path)) {
-
-                        if (a->sockaddr.un.sun_path[0] != 0) {
-                                char *e;
-
-                                /* path */
-                                if (!(e = memchr(a->sockaddr.un.sun_path, 0, sizeof(a->sockaddr.un.sun_path))))
-                                        return -EINVAL;
-
-                                if (a->size != offsetof(struct sockaddr_un, sun_path) + (e - a->sockaddr.un.sun_path) + 1)
-                                        return -EINVAL;
-                        }
-                }
-
-                if (a->type != SOCK_STREAM && a->type != SOCK_DGRAM && a->type != SOCK_SEQPACKET)
-                        return -EINVAL;
-
-                return 0;
-
-        case AF_NETLINK:
-
-                if (a->size != sizeof(struct sockaddr_nl))
-                        return -EINVAL;
-
-                if (a->type != SOCK_RAW && a->type != SOCK_DGRAM)
-                        return -EINVAL;
-
-                return 0;
-
-        default:
-                return -EAFNOSUPPORT;
-        }
-}
-
-int socket_address_print(const SocketAddress *a, char **p) {
-        int r;
-        assert(a);
-        assert(p);
-
-        if ((r = socket_address_verify(a)) < 0)
-                return r;
-
-        switch (socket_address_family(a)) {
-
-        case AF_INET: {
-                char *ret;
-
-                if (!(ret = new(char, INET_ADDRSTRLEN+1+5+1)))
-                        return -ENOMEM;
-
-                if (!inet_ntop(AF_INET, &a->sockaddr.in4.sin_addr, ret, INET_ADDRSTRLEN)) {
-                        free(ret);
-                        return -errno;
-                }
-
-                sprintf(strchr(ret, 0), ":%u", ntohs(a->sockaddr.in4.sin_port));
-                *p = ret;
-                return 0;
-        }
-
-        case AF_INET6: {
-                char *ret;
-
-                if (!(ret = new(char, 1+INET6_ADDRSTRLEN+2+5+1)))
-                        return -ENOMEM;
-
-                ret[0] = '[';
-                if (!inet_ntop(AF_INET6, &a->sockaddr.in6.sin6_addr, ret+1, INET6_ADDRSTRLEN)) {
-                        free(ret);
-                        return -errno;
-                }
-
-                sprintf(strchr(ret, 0), "]:%u", ntohs(a->sockaddr.in6.sin6_port));
-                *p = ret;
-                return 0;
-        }
-
-        case AF_UNIX: {
-                char *ret;
-
-                if (a->size <= offsetof(struct sockaddr_un, sun_path)) {
-
-                        if (!(ret = strdup("<unnamed>")))
-                                return -ENOMEM;
-
-                } else if (a->sockaddr.un.sun_path[0] == 0) {
-                        /* abstract */
-
-                        /* FIXME: We assume we can print the
-                         * socket path here and that it hasn't
-                         * more than one NUL byte. That is
-                         * actually an invalid assumption */
-
-                        if (!(ret = new(char, sizeof(a->sockaddr.un.sun_path)+1)))
-                                return -ENOMEM;
-
-                        ret[0] = '@';
-                        memcpy(ret+1, a->sockaddr.un.sun_path+1, sizeof(a->sockaddr.un.sun_path)-1);
-                        ret[sizeof(a->sockaddr.un.sun_path)] = 0;
-
-                } else {
-
-                        if (!(ret = strdup(a->sockaddr.un.sun_path)))
-                                return -ENOMEM;
-                }
-
-                *p = ret;
-                return 0;
-        }
-
-        case AF_NETLINK: {
-                char _cleanup_free_ *sfamily = NULL;
-
-                r = netlink_family_to_string_alloc(a->protocol, &sfamily);
-                if (r < 0)
-                        return r;
-                r = asprintf(p, "%s %u", sfamily, a->sockaddr.nl.nl_groups);
-
-                return 0;
-        }
-
-        default:
-                return -EINVAL;
-        }
-}
-
-bool socket_address_can_accept(const SocketAddress *a) {
-        assert(a);
-
-        return
-                a->type == SOCK_STREAM ||
-                a->type == SOCK_SEQPACKET;
-}
-
-bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) {
-        assert(a);
-        assert(b);
-
-        /* Invalid addresses are unequal to all */
-        if (socket_address_verify(a) < 0 ||
-            socket_address_verify(b) < 0)
-                return false;
-
-        if (a->type != b->type)
-                return false;
-
-        if (a->size != b->size)
-                return false;
-
-        if (socket_address_family(a) != socket_address_family(b))
-                return false;
-
-        switch (socket_address_family(a)) {
-
-        case AF_INET:
-                if (a->sockaddr.in4.sin_addr.s_addr != b->sockaddr.in4.sin_addr.s_addr)
-                        return false;
-
-                if (a->sockaddr.in4.sin_port != b->sockaddr.in4.sin_port)
-                        return false;
-
-                break;
-
-        case AF_INET6:
-                if (memcmp(&a->sockaddr.in6.sin6_addr, &b->sockaddr.in6.sin6_addr, sizeof(a->sockaddr.in6.sin6_addr)) != 0)
-                        return false;
-
-                if (a->sockaddr.in6.sin6_port != b->sockaddr.in6.sin6_port)
-                        return false;
-
-                break;
-
-        case AF_UNIX:
-
-                if ((a->sockaddr.un.sun_path[0] == 0) != (b->sockaddr.un.sun_path[0] == 0))
-                        return false;
-
-                if (a->sockaddr.un.sun_path[0]) {
-                        if (strncmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path)) != 0)
-                                return false;
-                } else {
-                        if (memcmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, a->size) != 0)
-                                return false;
-                }
-
-                break;
-
-        case AF_NETLINK:
-
-                if (a->protocol != b->protocol)
-                        return false;
-
-                if (a->sockaddr.nl.nl_groups != b->sockaddr.nl.nl_groups)
-                        return false;
-
-                break;
-
-        default:
-                /* Cannot compare, so we assume the addresses are different */
-                return false;
-        }
-
-        return true;
-}
-
-bool socket_address_is(const SocketAddress *a, const char *s, int type) {
-        struct SocketAddress b;
-
-        assert(a);
-        assert(s);
-
-        if (socket_address_parse(&b, s) < 0)
-                return false;
-
-        b.type = type;
-
-        return socket_address_equal(a, &b);
-}
-
-bool socket_address_is_netlink(const SocketAddress *a, const char *s) {
-        struct SocketAddress b;
-
-        assert(a);
-        assert(s);
-
-        if (socket_address_parse_netlink(&b, s) < 0)
-                return false;
-
-        return socket_address_equal(a, &b);
-}
-
-bool socket_address_needs_mount(const SocketAddress *a, const char *prefix) {
-        assert(a);
-
-        if (socket_address_family(a) != AF_UNIX)
-                return false;
-
-        if (a->sockaddr.un.sun_path[0] == 0)
-                return false;
-
-        return path_startswith(a->sockaddr.un.sun_path, prefix);
-}
-
-bool socket_ipv6_is_supported(void) {
-        char *l = 0;
-        bool enabled;
-
-        if (access("/sys/module/ipv6", F_OK) != 0)
-                return 0;
-
-        /* If we can't check "disable" parameter, assume enabled */
-        if (read_one_line_file("/sys/module/ipv6/parameters/disable", &l) < 0)
-                return 1;
-
-        /* If module was loaded with disable=1 no IPv6 available */
-        enabled = l[0] == '0';
-        free(l);
-
-        return enabled;
-}
-
-static const char* const netlink_family_table[] = {
-        [NETLINK_ROUTE] = "route",
-        [NETLINK_FIREWALL] = "firewall",
-        [NETLINK_INET_DIAG] = "inet-diag",
-        [NETLINK_NFLOG] = "nflog",
-        [NETLINK_XFRM] = "xfrm",
-        [NETLINK_SELINUX] = "selinux",
-        [NETLINK_ISCSI] = "iscsi",
-        [NETLINK_AUDIT] = "audit",
-        [NETLINK_FIB_LOOKUP] = "fib-lookup",
-        [NETLINK_CONNECTOR] = "connector",
-        [NETLINK_NETFILTER] = "netfilter",
-        [NETLINK_IP6_FW] = "ip6-fw",
-        [NETLINK_DNRTMSG] = "dnrtmsg",
-        [NETLINK_KOBJECT_UEVENT] = "kobject-uevent",
-        [NETLINK_GENERIC] = "generic",
-        [NETLINK_SCSITRANSPORT] = "scsitransport",
-        [NETLINK_ECRYPTFS] = "ecryptfs"
-};
-
-DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(netlink_family, int, INT_MAX);
-
-static const char* const socket_address_bind_ipv6_only_table[_SOCKET_ADDRESS_BIND_IPV6_ONLY_MAX] = {
-        [SOCKET_ADDRESS_DEFAULT] = "default",
-        [SOCKET_ADDRESS_BOTH] = "both",
-        [SOCKET_ADDRESS_IPV6_ONLY] = "ipv6-only"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(socket_address_bind_ipv6_only, SocketAddressBindIPv6Only);