-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
#include "sd-netlink.h"
-#include "formats-util.h"
+#include "alloc-util.h"
+#include "format-util.h"
#include "missing.h"
#include "netlink-internal.h"
#include "netlink-types.h"
#include "util.h"
#define GET_CONTAINER(m, i) ((i) < (m)->n_containers ? (struct rtattr*)((uint8_t*)(m)->hdr + (m)->containers[i].offset) : NULL)
-#define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers ++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
+#define PUSH_CONTAINER(m, new) (m)->container_offsets[(m)->n_containers++] = (uint8_t*)(new) - (uint8_t*)(m)->hdr;
#define RTA_TYPE(rta) ((rta)->rta_type & NLA_TYPE_MASK)
#define RTA_FLAGS(rta) ((rta)->rta_type & ~NLA_TYPE_MASK)
}
int message_new(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t type) {
- _cleanup_netlink_message_unref_ sd_netlink_message *m = NULL;
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
const NLType *nl_type;
size_t size;
int r;
int sd_netlink_message_request_dump(sd_netlink_message *m, int dump) {
assert_return(m, -EINVAL);
assert_return(m->hdr, -EINVAL);
- assert_return(m->hdr->nlmsg_type == RTM_GETLINK ||
- m->hdr->nlmsg_type == RTM_GETADDR ||
- m->hdr->nlmsg_type == RTM_GETROUTE ||
- m->hdr->nlmsg_type == RTM_GETNEIGH,
- -EINVAL);
-
- if (dump)
- m->hdr->nlmsg_flags |= NLM_F_DUMP;
- else
- m->hdr->nlmsg_flags &= ~NLM_F_DUMP;
+
+ assert_return(IN_SET(m->hdr->nlmsg_type, RTM_GETLINK, RTM_GETADDR, RTM_GETROUTE, RTM_GETNEIGH, RTM_GETRULE, RTM_GETADDRLABEL), -EINVAL);
+
+ SET_FLAG(m->hdr->nlmsg_flags, NLM_F_DUMP, dump);
return 0;
}
}
sd_netlink_message *sd_netlink_message_unref(sd_netlink_message *m) {
- if (m && REFCNT_DEC(m->n_ref) == 0) {
+ sd_netlink_message *t;
+
+ while (m && REFCNT_DEC(m->n_ref) == 0) {
unsigned i;
free(m->hdr);
for (i = 0; i <= m->n_containers; i++)
free(m->containers[i].attributes);
- sd_netlink_message_unref(m->next);
-
- free(m);
+ t = m;
+ m = m->next;
+ free(t);
}
return NULL;
* and gives us too little data (so don't do that)
*/
padding = mempcpy(RTA_DATA(rta), data, data_length);
- else {
+
+ else
/* if no data was passed, make sure we still initialize the padding
note that we can have data_length > 0 (used by some containers) */
padding = RTA_DATA(rta);
- }
/* make sure also the padding at the end of the message is initialized */
padding_length = (uint8_t*)m->hdr + message_length - (uint8_t*)padding;
return 0;
}
+int sd_netlink_message_append_data(sd_netlink_message *m, unsigned short type, const void *data, size_t len) {
+ int r;
+
+ assert_return(m, -EINVAL);
+ assert_return(!m->sealed, -EPERM);
+
+ r = add_rtattr(m, type, data, len);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
int sd_netlink_message_append_in_addr(sd_netlink_message *m, unsigned short type, const struct in_addr *data) {
int r;
if (r < 0)
return r;
- m->containers[m->n_containers ++].offset = r;
+ m->containers[m->n_containers++].offset = r;
return 0;
}
if (r < 0)
return r;
- m->containers[m->n_containers ++].offset = r;
+ m->containers[m->n_containers++].offset = r;
return 0;
}
assert_return(m->n_containers > 0, -EINVAL);
m->containers[m->n_containers].type_system = NULL;
- m->n_containers --;
+ m->n_containers--;
return 0;
}
attribute = &m->containers[m->n_containers].attributes[type];
- if(!attribute->offset)
+ if (!attribute->offset)
return -ENODATA;
rta = (struct rtattr*)((uint8_t *) m->hdr + attribute->offset);
_cleanup_free_ struct netlink_attribute *attributes = NULL;
attributes = new0(struct netlink_attribute, count);
- if(!attributes)
+ if (!attributes)
return -ENOMEM;
for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
else
size = (size_t)r;
- m->n_containers ++;
+ m->n_containers++;
r = netlink_container_parse(m,
&m->containers[m->n_containers],
container,
size);
if (r < 0) {
- m->n_containers --;
+ m->n_containers--;
return r;
}
m->containers[m->n_containers].attributes = mfree(m->containers[m->n_containers].attributes);
m->containers[m->n_containers].type_system = NULL;
- m->n_containers --;
+ m->n_containers--;
return 0;
}