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ethtool-util: make ethtool_set_wol() take password

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This commit is contained in:
Yu Watanabe 2021-10-06 21:49:39 +09:00
parent 20274ab86a
commit 9bd3ecdd8d
3 changed files with 34 additions and 7 deletions
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37
src/shared/ethtool-util.c
View File

@ -400,7 +400,12 @@ int ethtool_get_permanent_macaddr(int *ethtool_fd, const char *ifname, struct et
dest = _v; \
} while(false)
int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts) {
int ethtool_set_wol(
int *ethtool_fd,
const char *ifname,
uint32_t wolopts,
const uint8_t password[SOPASS_MAX]) {
struct ethtool_wolinfo ecmd = {
.cmd = ETHTOOL_GWOL,
};
@ -413,7 +418,8 @@ int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts) {
assert(ethtool_fd);
assert(ifname);
if (wolopts == UINT32_MAX)
if (wolopts == UINT32_MAX && !password)
/* Nothing requested. Return earlier. */
return 0;
r = ethtool_connect(ethtool_fd);
@ -425,6 +431,14 @@ int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts) {
if (ioctl(*ethtool_fd, SIOCETHTOOL, &ifr) < 0)
return -errno;
if (wolopts == UINT32_MAX) {
/* When password is specified without valid WoL options specified, then enable
* WAKE_MAGICSECURE flag if supported. */
wolopts = ecmd.wolopts;
if (password && FLAGS_SET(ecmd.supported, WAKE_MAGICSECURE))
wolopts |= WAKE_MAGICSECURE;
}
if ((wolopts & ~ecmd.supported) != 0) {
_cleanup_free_ char *str = NULL;
@ -435,16 +449,29 @@ int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts) {
wolopts &= ecmd.supported;
}
if (!FLAGS_SET(wolopts, WAKE_MAGICSECURE))
/* When WAKE_MAGICSECURE flag is not set, then ignore password. */
password = NULL;
UPDATE(ecmd.wolopts, wolopts, need_update);
if (password &&
memcmp(ecmd.sopass, password, sizeof(ecmd.sopass)) != 0) {
memcpy(ecmd.sopass, password, sizeof(ecmd.sopass));
need_update = true;
}
if (!need_update)
if (!need_update) {
explicit_bzero_safe(&ecmd, sizeof(ecmd));
return 0;
}
r = 0;
ecmd.cmd = ETHTOOL_SWOL;
if (ioctl(*ethtool_fd, SIOCETHTOOL, &ifr) < 0)
return -errno;
r = -errno;
return 0;
explicit_bzero_safe(&ecmd, sizeof(ecmd));
return r;
}
int ethtool_set_nic_buffer_size(int *ethtool_fd, const char *ifname, const netdev_ring_param *ring) {

2
src/shared/ethtool-util.h
View File

@ -164,7 +164,7 @@ int ethtool_get_link_info(int *ethtool_fd, const char *ifname,
int *ret_autonegotiation, uint64_t *ret_speed,
Duplex *ret_duplex, NetDevPort *ret_port);
int ethtool_get_permanent_macaddr(int *ethtool_fd, const char *ifname, struct ether_addr *ret);
int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts);
int ethtool_set_wol(int *ethtool_fd, const char *ifname, uint32_t wolopts, const uint8_t password[SOPASS_MAX]);
int ethtool_set_nic_buffer_size(int *ethtool_fd, const char *ifname, const netdev_ring_param *ring);
int ethtool_set_features(int *ethtool_fd, const char *ifname, const int features[static _NET_DEV_FEAT_MAX]);
int ethtool_set_glinksettings(int *ethtool_fd, const char *ifname,

2
src/udev/net/link-config.c
View File

@ -329,7 +329,7 @@ static int link_config_apply_ethtool_settings(int *ethtool_fd, const LinkConfig
port_to_string(config->port));
}
r = ethtool_set_wol(ethtool_fd, name, config->wol);
r = ethtool_set_wol(ethtool_fd, name, config->wol, NULL);
if (r < 0) {
_cleanup_free_ char *str = NULL;