diff options
Diffstat (limited to 'src/network/networkd-netdev-tunnel.c')
| -rw-r--r-- | src/network/networkd-netdev-tunnel.c | 205 |
1 files changed, 168 insertions, 37 deletions
diff --git a/src/network/networkd-netdev-tunnel.c b/src/network/networkd-netdev-tunnel.c index a13edf6936..77a4734df8 100644 --- a/src/network/networkd-netdev-tunnel.c +++ b/src/network/networkd-netdev-tunnel.c @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - /*** This file is part of systemd. @@ -26,14 +24,18 @@ #include <linux/ip6_tunnel.h> #include "sd-netlink.h" -#include "networkd-netdev-tunnel.h" + +#include "conf-parser.h" +#include "missing.h" #include "networkd-link.h" +#include "networkd-netdev-tunnel.h" +#include "parse-util.h" +#include "string-table.h" +#include "string-util.h" #include "util.h" -#include "missing.h" -#include "conf-parser.h" #define DEFAULT_TNL_HOP_LIMIT 64 -#define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF) +#define IP6_FLOWINFO_FLOWLABEL htobe32(0x000FFFFF) static const char* const ip6tnl_mode_table[_NETDEV_IP6_TNL_MODE_MAX] = { [NETDEV_IP6_TNL_MODE_IP6IP6] = "ip6ip6", @@ -52,7 +54,7 @@ static int netdev_ipip_fill_message_create(NetDev *netdev, Link *link, sd_netlin assert(link); assert(m); assert(t); - assert(t->family == AF_INET); + assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) @@ -85,7 +87,7 @@ static int netdev_sit_fill_message_create(NetDev *netdev, Link *link, sd_netlink assert(link); assert(m); assert(t); - assert(t->family == AF_INET); + assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); r = sd_netlink_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex); if (r < 0) @@ -122,7 +124,7 @@ static int netdev_gre_fill_message_create(NetDev *netdev, Link *link, sd_netlink t = GRETAP(netdev); assert(t); - assert(t->family == AF_INET); + assert(IN_SET(t->family, AF_INET, AF_UNSPEC)); assert(link); assert(m); @@ -185,9 +187,46 @@ static int netdev_ip6gre_fill_message_create(NetDev *netdev, Link *link, sd_netl if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_TTL attribute: %m"); + if (t->ipv6_flowlabel != _NETDEV_IPV6_FLOWLABEL_INVALID) { + r = sd_netlink_message_append_u32(m, IFLA_GRE_FLOWINFO, t->ipv6_flowlabel); + if (r < 0) + return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_FLOWINFO attribute: %m"); + } + + r = sd_netlink_message_append_u32(m, IFLA_GRE_FLAGS, t->flags); + if (r < 0) + return log_netdev_error_errno(netdev, r, "Could not append IFLA_GRE_FLAGS attribute: %m"); + return r; } +static int netdev_vti_fill_message_key(NetDev *netdev, Link *link, sd_netlink_message *m) { + Tunnel *t = VTI(netdev); + uint32_t ikey, okey; + int r; + + assert(link); + assert(m); + assert(t); + + if (t->key != 0) + ikey = okey = htobe32(t->key); + else { + ikey = htobe32(t->ikey); + okey = htobe32(t->okey); + } + + r = sd_netlink_message_append_u32(m, IFLA_VTI_IKEY, ikey); + if (r < 0) + return log_netdev_error_errno(netdev, r, "Could not append IFLA_VTI_IKEY attribute: %m"); + + r = sd_netlink_message_append_u32(m, IFLA_VTI_OKEY, okey); + if (r < 0) + return log_netdev_error_errno(netdev, r, "Could not append IFLA_VTI_OKEY attribute: %m"); + + return 0; +} + static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) { Tunnel *t = VTI(netdev); int r; @@ -202,6 +241,10 @@ static int netdev_vti_fill_message_create(NetDev *netdev, Link *link, sd_netlink if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); + r = netdev_vti_fill_message_key(netdev, link, m); + if (r < 0) + return r; + r = sd_netlink_message_append_in_addr(m, IFLA_VTI_LOCAL, &t->local.in); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); @@ -227,6 +270,10 @@ static int netdev_vti6_fill_message_create(NetDev *netdev, Link *link, sd_netlin if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LINK attribute: %m"); + r = netdev_vti_fill_message_key(netdev, link, m); + if (r < 0) + return r; + r = sd_netlink_message_append_in6_addr(m, IFLA_VTI_LOCAL, &t->local.in6); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_LOCAL attribute: %m"); @@ -271,6 +318,15 @@ static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_netl return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLOWINFO attribute: %m"); } + if (t->copy_dscp) + t->flags |= IP6_TNL_F_RCV_DSCP_COPY; + + if (t->encap_limit != IPV6_DEFAULT_TNL_ENCAP_LIMIT) { + r = sd_netlink_message_append_u8(m, IFLA_IPTUN_ENCAP_LIMIT, t->encap_limit); + if (r < 0) + return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_LIMIT attribute: %m"); + } + r = sd_netlink_message_append_u32(m, IFLA_IPTUN_FLAGS, t->flags); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_FLAGS attribute: %m"); @@ -335,12 +391,7 @@ static int netdev_tunnel_verify(NetDev *netdev, const char *filename) { assert(t); - if (t->remote.in.s_addr == INADDR_ANY) { - log_warning("Tunnel without remote address configured in %s. Ignoring", filename); - return -EINVAL; - } - - if (t->family != AF_INET && t->family != AF_INET6) { + if (t->family != AF_INET && t->family != AF_INET6 && t->family != 0) { log_warning("Tunnel with invalid address family configured in %s. Ignoring", filename); return -EINVAL; } @@ -374,15 +425,21 @@ int config_parse_tunnel_address(const char *unit, assert(rvalue); assert(data); - r = in_addr_from_string_auto(rvalue, &f, &buffer); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel address is invalid, ignoring assignment: %s", rvalue); + if (streq(rvalue, "any")) { + t->family = 0; return 0; - } + } else { - if (t->family != AF_UNSPEC && t->family != f) { - log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Tunnel addresses incompatible, ignoring assignment: %s", rvalue); - return 0; + r = in_addr_from_string_auto(rvalue, &f, &buffer); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Tunnel address is invalid, ignoring assignment: %s", rvalue); + return 0; + } + + if (t->family != AF_UNSPEC && t->family != f) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Tunnel addresses incompatible, ignoring assignment: %s", rvalue); + return 0; + } } t->family = f; @@ -391,11 +448,45 @@ int config_parse_tunnel_address(const char *unit, return 0; } -static const char* const ipv6_flowlabel_table[_NETDEV_IPV6_FLOWLABEL_MAX] = { - [NETDEV_IPV6_FLOWLABEL_INHERIT] = "inherit", -}; +int config_parse_tunnel_key(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + union in_addr_union buffer; + Tunnel *t = userdata; + uint32_t k; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + r = in_addr_from_string(AF_INET, rvalue, &buffer); + if (r < 0) { + r = safe_atou32(rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse tunnel key ignoring assignment: %s", rvalue); + return 0; + } + } else + k = be32toh(buffer.in.s_addr); + + if (streq(lvalue, "Key")) + t->key = k; + else if (streq(lvalue, "InputKey")) + t->ikey = k; + else + t->okey = k; -DEFINE_STRING_TABLE_LOOKUP(ipv6_flowlabel, IPv6FlowLabel); + return 0; +} int config_parse_ipv6_flowlabel(const char* unit, const char *filename, @@ -409,7 +500,6 @@ int config_parse_ipv6_flowlabel(const char* unit, void *userdata) { IPv6FlowLabel *ipv6_flowlabel = data; Tunnel *t = userdata; - IPv6FlowLabel s; int k = 0; int r; @@ -418,19 +508,57 @@ int config_parse_ipv6_flowlabel(const char* unit, assert(rvalue); assert(ipv6_flowlabel); - s = ipv6_flowlabel_from_string(rvalue); - if (s != _NETDEV_IPV6_FLOWLABEL_INVALID) { + if (streq(rvalue, "inherit")) { *ipv6_flowlabel = IP6_FLOWINFO_FLOWLABEL; t->flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL; } else { - r = config_parse_unsigned(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &k, userdata); - if (r >= 0) { - if (k > 0xFFFFF) - log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse IPv6 flowlabel option, ignoring: %s", rvalue); - else { - *ipv6_flowlabel = htonl(k) & IP6_FLOWINFO_FLOWLABEL; - t->flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL; - } + r = config_parse_int(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &k, userdata); + if (r < 0) + return r; + + if (k > 0xFFFFF) + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IPv6 flowlabel option, ignoring: %s", rvalue); + else { + *ipv6_flowlabel = htobe32(k) & IP6_FLOWINFO_FLOWLABEL; + t->flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL; + } + } + + return 0; +} + +int config_parse_encap_limit(const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + Tunnel *t = userdata; + int k = 0; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (streq(rvalue, "none")) + t->flags |= IP6_TNL_F_IGN_ENCAP_LIMIT; + else { + r = safe_atoi(rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse Tunnel Encapsulation Limit option, ignoring: %s", rvalue); + return 0; + } + + if (k > 255 || k < 0) + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid Tunnel Encapsulation value, ignoring: %d", k); + else { + t->encap_limit = k; + t->flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT; } } @@ -444,6 +572,7 @@ static void ipip_init(NetDev *n) { assert(t); t->pmtudisc = true; + t->family = AF_UNSPEC; } static void sit_init(NetDev *n) { @@ -453,6 +582,7 @@ static void sit_init(NetDev *n) { assert(t); t->pmtudisc = true; + t->family = AF_UNSPEC; } static void vti_init(NetDev *n) { @@ -483,6 +613,7 @@ static void gre_init(NetDev *n) { assert(t); t->pmtudisc = true; + t->family = AF_UNSPEC; } static void ip6gre_init(NetDev *n) { |