kaffa/XDP-Firewall
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add better error handling to loader.

Browse Source
This commit is contained in:
Christian Deacon
2025-02-23 07:15:12 -05:00
parent f093bf96c4
commit 4e7c563274
4 changed files with 82 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/loader/utils/xdp.c
View File

@@ -166,6 +166,7 @@ int AttachXdp(struct xdp_program *prog, int ifidx, u8 detach, cmdline_t *cmd)
void UpdateFilters(int filters_map, config__t *cfg)
{
int i;
int ret;
// Loop through all filters and delete the map. We do this in the case rules were edited and were put out of order since the key doesn't uniquely map to a specific rule.
for (i = 0; i < MAX_FILTERS; i++)
@@ -194,9 +195,9 @@ void UpdateFilters(int filters_map, config__t *cfg)
}
// Attempt to update BPF map.
if (bpf_map_update_elem(filters_map, &i, &filter, BPF_ANY) == -1)
if ((ret = bpf_map_update_elem(filters_map, &i, &filter, BPF_ANY)) != 0)
{
fprintf(stderr, "Error updating BPF item #%d\n", i);
fprintf(stderr, "[WARNING] Failed to update filter #%d due to BPF update error (%d).\n", i, ret);
}
}
}