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platform: move evaluating the result of set_address to do_change_link_result()

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Move all evaluations of the result at one place.
This commit is contained in:
Thomas Haller
2017-10-23 13:17:21 +02:00
parent 42cfcf6f23
commit c0c23911da
1 changed files with 41 additions and 37 deletions
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78
src/platform/nm-linux-platform.c
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@@ -209,8 +209,18 @@ typedef enum {
typedef enum {
CHANGE_LINK_TYPE_UNSPEC,
CHANGE_LINK_TYPE_SET_MTU,
CHANGE_LINK_TYPE_SET_ADDRESS,
} ChangeLinkType;
typedef struct {
union {
struct {
gconstpointer address;
gsize length;
} set_address;
};
} ChangeLinkData;
enum {
DELAYED_ACTION_IDX_REFRESH_ALL_LINKS,
DELAYED_ACTION_IDX_REFRESH_ALL_IP4_ADDRESSES,
@@ -4457,12 +4467,14 @@ static NMPlatformError
do_change_link_result (NMPlatform *platform,
ChangeLinkType change_link_type,
int ifindex,
WaitForNlResponseResult seq_result)
WaitForNlResponseResult seq_result,
const ChangeLinkData *data)
{
char s_buf[256];
NMPlatformError result = NM_PLATFORM_ERROR_SUCCESS;
NMLogLevel log_level = LOGL_DEBUG;
const char *log_result = "failure", *log_detail = "";
const NMPObject *obj_cache;
if (seq_result == WAIT_FOR_NL_RESPONSE_RESULT_RESPONSE_OK) {
log_result = "success";
@@ -4475,6 +4487,16 @@ do_change_link_result (NMPlatform *platform,
&& change_link_type == CHANGE_LINK_TYPE_SET_MTU) {
log_detail = ", setting MTU to requested size is not possible";
result = NM_PLATFORM_ERROR_CANT_SET_MTU;
} else if ( NM_IN_SET (-((int) seq_result), ENFILE)
&& change_link_type == CHANGE_LINK_TYPE_SET_ADDRESS
&& (obj_cache = nmp_cache_lookup_link (nm_platform_get_cache (platform), ifindex))
&& obj_cache->link.addr.len == data->set_address.length
&& memcmp (obj_cache->link.addr.data, data->set_address.address, data->set_address.length) == 0) {
/* workaround ENFILE which may be wrongly returned (bgo #770456).
* If the MAC address is as expected, assume success? */
log_result = "success";
log_detail = " (assume success changing address)";
result = NM_PLATFORM_ERROR_SUCCESS;
} else if (NM_IN_SET (-((int) seq_result), ENODEV)) {
log_level = LOGL_DEBUG;
result = NM_PLATFORM_ERROR_NOT_FOUND;
@@ -4496,12 +4518,13 @@ static NMPlatformError
do_change_link (NMPlatform *platform,
ChangeLinkType change_link_type,
int ifindex,
struct nl_msg *nlmsg)
struct nl_msg *nlmsg,
const ChangeLinkData *data)
{
WaitForNlResponseResult seq_result;
seq_result = do_change_link_request (platform, ifindex, nlmsg);
return do_change_link_result (platform, change_link_type, ifindex, seq_result);
return do_change_link_result (platform, change_link_type, ifindex, seq_result, data);
}
static gboolean
@@ -4595,7 +4618,7 @@ link_set_netns (NMPlatform *platform,
return FALSE;
NLA_PUT (nlmsg, IFLA_NET_NS_FD, 4, &netns_fd);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
nla_put_failure:
g_return_val_if_reached (FALSE);
@@ -4625,7 +4648,7 @@ link_change_flags (NMPlatform *platform,
flags_set);
if (!nlmsg)
return NM_PLATFORM_ERROR_UNSPECIFIED;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL);
}
static gboolean
@@ -4694,7 +4717,7 @@ link_set_user_ipv6ll_enabled (NMPlatform *platform, int ifindex, gboolean enable
|| !_nl_msg_new_link_set_afspec (nlmsg, mode, NULL))
g_return_val_if_reached (NM_PLATFORM_ERROR_BUG);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL);
}
static gboolean
@@ -4709,7 +4732,7 @@ link_set_token (NMPlatform *platform, int ifindex, NMUtilsIPv6IfaceId iid)
if (!nlmsg || !_nl_msg_new_link_set_afspec (nlmsg, -1, &iid))
g_return_val_if_reached (FALSE);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
}
static gboolean
@@ -4774,8 +4797,12 @@ link_set_address (NMPlatform *platform, int ifindex, gconstpointer address, size
{
nm_auto_nlmsg struct nl_msg *nlmsg = NULL;
gs_free char *mac = NULL;
WaitForNlResponseResult seq_result;
char s_buf[256];
const ChangeLinkData d = {
.set_address = {
.address = address,
.length = length,
},
};
if (!address || !length)
g_return_val_if_reached (NM_PLATFORM_ERROR_BUG);
@@ -4795,30 +4822,7 @@ link_set_address (NMPlatform *platform, int ifindex, gconstpointer address, size
NLA_PUT (nlmsg, IFLA_ADDRESS, length, address);
seq_result = do_change_link_request (platform, ifindex, nlmsg);
if (NM_IN_SET (-((int) seq_result), ENFILE)) {
const NMPObject *obj_cache;
/* workaround ENFILE which may be wrongly returned (bgo #770456).
* If the MAC address is as expected, assume success? */
obj_cache = nmp_cache_lookup_link (nm_platform_get_cache (platform), ifindex);
if ( obj_cache
&& obj_cache->link.addr.len == length
&& memcmp (obj_cache->link.addr.data, address, length) == 0) {
_NMLOG (LOGL_DEBUG,
"do-change-link[%d]: %s changing link: %s%s",
ifindex,
"success",
wait_for_nl_response_to_string (seq_result, s_buf, sizeof (s_buf)),
" (assume success changing address)");
return NM_PLATFORM_ERROR_SUCCESS;
}
}
return do_change_link_result (platform, ifindex, CHANGE_LINK_TYPE_UNSPEC, seq_result);
return do_change_link (platform, CHANGE_LINK_TYPE_SET_ADDRESS, ifindex, nlmsg, &d);
nla_put_failure:
g_return_val_if_reached (NM_PLATFORM_ERROR_UNSPECIFIED);
}
@@ -4841,7 +4845,7 @@ link_set_name (NMPlatform *platform, int ifindex, const char *name)
NLA_PUT (nlmsg, IFLA_IFNAME, strlen (name) + 1, name);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
nla_put_failure:
g_return_val_if_reached (FALSE);
}
@@ -4878,7 +4882,7 @@ link_set_mtu (NMPlatform *platform, int ifindex, guint32 mtu)
NLA_PUT_U32 (nlmsg, IFLA_MTU, mtu);
return do_change_link (platform, CHANGE_LINK_TYPE_SET_MTU, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_SET_MTU, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
nla_put_failure:
g_return_val_if_reached (FALSE);
}
@@ -5586,7 +5590,7 @@ link_vlan_change (NMPlatform *platform,
new_n_egress_map))
g_return_val_if_reached (FALSE);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
}
static int
@@ -5666,7 +5670,7 @@ link_enslave (NMPlatform *platform, int master, int slave)
NLA_PUT_U32 (nlmsg, IFLA_MASTER, master);
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg) == NM_PLATFORM_ERROR_SUCCESS;
return do_change_link (platform, CHANGE_LINK_TYPE_UNSPEC, ifindex, nlmsg, NULL) == NM_PLATFORM_ERROR_SUCCESS;
nla_put_failure:
g_return_val_if_reached (FALSE);
}